<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE rfc SYSTEM "rfc2629.dtd">
<rfc xmlns:xi="http://www.w3.org/2001/XInclude" category="exp" docName="draft-lehmann-idmefv2-09" ipr="trust200902" consensus="false" obsoletes="4765">
  <front>
    <title abbrev="IDMEFv2">The Incident Detection Message Exchange Format version 2 (IDMEFv2)</title>
    <author fullname="Gilles Lehmann">
      <organization>Telecom SudParis</organization>
      <address>
        <postal>
          <country>FR</country>
        </postal>
        <email>gilles.lehmann@telecom-sudparis.eu</email>
      </address>
    </author>
    <author fullname="Thomas Andrejak">
      <organization>Bytes'n AI</organization>
      <address>
        <postal>
          <country>FR</country>
        </postal>
        <email>Thomas.Andrejak@gmail.com</email>
      </address>
    </author>
    <date day="24" month="October" year="2026"/>
    <keyword>RFC4765</keyword>
    <keyword>RFC4766</keyword>
    <keyword>IDMEF</keyword>
    <abstract>
      <t>The Incident Detection Message Exchange Format version 2 (IDMEFv2) defines a
        data representation for security incidents detected on cyber and/or physical
        infrastructures.</t>
      <t>The format is agnostic so it can be used in standalone or combined cyber
        (SIEM), physical (PSIM) and availability (NMS) monitoring systems. IDMEFv2 can
        also be used to represent man made or natural hazards threats.</t>
      <t>IDMEFv2 improves situational awareness by facilitating correlation of multiple types
        of events using the same base format thus enabling efficient detection of complex
        and combined cyber and physical attacks and incidents.</t>
      <t>This draft is maintained by the IDMEFv2 Task Force. Please consult our website
        for more information: https://www.idmefv2.org.</t>
      <t>If approved this draft will obsolete RFC4765.</t>
    </abstract>
  </front>
  <middle>
    <section>
      <name>Introduction</name>
      <t>The Incident Detection Message Exchange Format (IDMEF) is intended to solve
            the problem of security monitoring compartmentalization by proposing a single format to represent
            any type of incident, whether cyber or physical, intentional or accidental, natural or man-made.</t>
      <t>Indeed security is often associated  to the Confidentiality-Integrity-Availability triad,
            performance and availability management systems are still run independently
            from security management systems.</t>
      <t>Additionally, with the adoption and integration of Internet of Things (IoT)
            and Industrial Internet of Things (IIoT) devices, and the exponential emergence
            of smart systems (transport, cities, buildings, etc), an increasingly interconnected mesh of cyber-physical systems (CPS) has emerged.
            This expansion of the attack and incident surfaces blurs the once-clear functions of cybersecurity and physical security.</t>
      <t>Finally, as IT infrastructure moves out of data centers it  becomes more exposed to
            external threats, including natural and man-made hazards.</t>
      <t>Incident detection systems have traditionally focused on detecting cyber incidents or physical incident or availability  incidents.
            There is an increasing need nowadays to have a unified view and management of all those incidents and their interconnection.</t>
      <t>To achieve this goal the Incident Detection Message Exchange Format offers a unique data representation for
            multiple types of events:</t>
      <ul>
            <li>
                <t>Cyber-security events (e.g. authentication failure/success, virus/malware
                    detection, bruteforce/scan detection, etc.)</t>
            </li>
            <li>
                <t>Physical security events (e.g. intrusion detection, object detection,
                    face or activity recognition, fire/smoke/noise/rain detection, etc.)</t>
            </li>
            <li>
                <t>Availability/observability/performance events (e.g. system failure, service malfunction,
                    performance decrease, etc.)</t>
            </li>
            <li>
                <t>Natural and man made hazards events (e.g. wildfires, avalanches, droughts, earthquakes,
                    pollution, fire, explosion, etc.)</t>
            </li>
        </ul>
      <section>
        <name>IDMEFv2 deployment architecture</name>
        <t>IDMEFv2 can be used to exchange incident detection information between specialized managers
                (SIEM, PSIM, NMS) and a universal "Cyber &amp; Physical SIEM" (CPSIEM) or directly from specialized analyzers and
                a CPSIEM.</t>
        <figure anchor="global_view">
          <name>IDMEF Use Architecture</name>
          <artwork type="ascii-art" align="center">                   +-----------------------------+    +---------+
                   |    "Universal" CPSIEM       |&lt;---| Hazards |
                   +-----------------------------+    +---------+
                       |          |         |
                    +------+   +-----+   +------+
    Managers        | PSIM |   | NMS |   | SIEM |
                    +------+   +-----+   +------+
                       |          |         |
                   +--------+ +----------+ +-----+
Analyzers/Sensors  |Physical| |Monitoring| |Cyber|
                   +--------+ +----------+ +-----+
                       |           |          |
                  +-------------------------------+
                  |    Cyber &amp; Physical System    |
                  +-------------------------------+</artwork>
        </figure>
        <t>IDMEFv2 improves situational awareness by enabling correlation of multiple types
                of events using the same base format.</t>
        <t>This document defines a model serialization methods for the purpose of describing and sharing these events.</t>
      </section>
      <section>
        <name>IDMEFv1 (Intrusion Detection Message Exchange Format) -  RFC 4765 - Legacy</name>
        <t>IDMEFv2 (Incident Detection Message Exchange Format) is based on IDMEFv1 (Intrusion Detection Message Exchange Format) concepts. But IDMEFv1 was cyber intrusion focused as IDMEFv2 perimeter is much larger. Thus retro-compatibility although partly possible has not been a priority.</t>
      </section>
      <section>
        <name>Relationship between IDMEFv2 and other event/incident formats</name>
        <t>IDMEFv2 focuses essentialy on high level event/incident correlation and detection.There are
                many standard and proprietary formats on the incident detection market and in particular on the cybersecurity market.
                IDMEFv2 is complementary to most of these formats.</t>
        <t>IDMEFv1 (Intrusion Detection Message Exchange Format - RFC 4765) : IDMEFv2 (Incident Detection) replaces and obsoletes IDMEFv1
                (Intrusion Detection) by covering a wider spectrum.</t>
        <t>IODEFv2 (Incident Object Definition Exchange Format - RFC 5070) : IDMEFv2 helps detect incident. When an incident is detected it will
                be analysed and eventually fully described and shared with other security teams through IODEFv2.
                IDMEF is used upstream IODEFv2. IDMEFv2 alerts can be “attached” to IODEFv2 object
                to provide technical details about incidents.</t>
        <t>Syslog (System Logging) : Syslog is a lossy format with no formal structure. Syslog can
                be used by sensors to send information to analyzers. Out of those multi-format
                syslogs the analyzer might detect an incident or an event of interest. The analyzer
                will then use IDMEFv2 to notify the manager which might correlate this information
                with other data to confirm the incident.</t>
        <t>SNMP (Simple Network Management Protocol) : SNMP polls information from devices which is then compared to thresholds
                to detect incident. IDMEFv2 can be used when incident is detected downstream of
                SNMP to communicate the incident to the manager. IDMEFv2 can have a similar role as SNMP Traps.</t>
        <t>STIX (Structured Threat Information Expression) : is a language and serialization format used to exchange cyber threat intelligence (CTI).  IDMEFv2 can help detect incidents which might lead to the creation and sharing of STIX information.
                Cyber analyzer  can also rely on STIX information to detect incidents that will be notified in IDMEFv2 format.</t>
        <t>OCSF (The Open Cybersecurity Schema Framework) is an open-source, vendor-agnostic standard designed to normalize security telemetry from diverse tools. It provides a common language and consistent structure for security event data, simplifying data ingestion, correlation, and analysis. OCSF can be seen as a “super” syslog to describe events before IDMEFv2 extract “incidents”. OCSF is limited to cyber security.</t>
        <t>SIEM proprietory formats (CEF, LEEF, ECS, CIM, ...) : By covering cyber, physical and
                monitoring incidents type, IDMEFv2 offers a wider spectrum than those formats.
                Gateways between IDMEFv2 and those formats can be developped to connect legacy
                cyber detection systems to an IDMEFv2 architecture.</t>
      </section>
      <section>
        <name>Existing Deployments and Adoption</name>
        <t>IDMEFv2 is not a theoretical proposal. It has been developed, validated, and deployed within the framework of eight large-scale European research projects, funded by the Horizon 2020 and Digital Europe programmes. These projects — namely 7SHIELD, PRECINCT, CyberSEAS, ATLANTIS, ENDURANCE, KINAITICS, TESTUDO, and SAFE4SOC — address critical sectors such as space systems, energy grids, transportation, and government infrastructure. These implementations span multiple domains, including Security Operations Centers (SOCs), Physical Security Information Management (PSIM) systems, and critical infrastructure protection pilots.</t>
        <t>This document aims to formalize this existing practice as an IETF Experimental RFC, to ensure interoperability, gather broader community feedback, and provide a stable foundation for future developments.</t>
      </section>
    </section>
    <section>
      <name>Terminology</name>
      <section>
        <name>Keywords</name>
        <t>The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
                "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
                document are to be interpreted as described in <xref target="RFC2119"/>.</t>
      </section>
      <section>
        <name>Normative sections</name>
        <t>Implementations of IDMEFv2 are REQUIRED to fully implement:</t>
        <ul>
                <li>
                    <t>The data types defined in <xref target="data-types"/></t>
                </li>
                <li>
                    <t>The data model defined in <xref target="model"/></t>
                </li>
                <li>
                    <t>The JavaScript Object Notation (JSON) serialization method <xref target="json-sm"/>.</t>
                </li>
            </ul>
      </section>
      <section>
        <name>Concepts related to event processing</name>
        <section>
          <name>Event</name>
          <t>An event is something that triggered a notice. Any incident starts off as an event
                    or a combination of events, but not all events result in an incident.
                    An event does not need  be an indication of wrongdoing. E.g. someone successfully logging in
                    or entering a building is an event.</t>
        </section>
        <section>
          <name>Incident</name>
          <t>An incident is an event that compromises or has a significant probability of compromising
                    at least one of the organization's security criteria such as Confidentiality, Integrity
                    or Availability.
                    An incident may affect a production tool, personnel, etc.
                    It may be logical, physical or organizational in nature.
                    Last but not least, an incident may be caused on purpose or by accident.</t>
        </section>
        <section>
          <name>Alert</name>
          <t>An alert is a notification/message that a particular event/incident (or series of events/incidents)
                    has occurred.</t>
        </section>
        <section>
          <name>Manager</name>
          <t>The manager is the central console toward which all analyzers send their alerts.
                    The manager collects, correlates, stores and displays the alerts to the operators.</t>
          <t>Example :
                    - A SIEM (Security Information &amp; Event Management) or a Log Manager)
                    - A PSIM (Physical Security Information Management)
                    - A NMS (Network Management System)
                    - A CPSIEM (Cyber &amp; Physical Security Information Management System)</t>
        </section>
        <section>
          <name>Operator</name>
          <t>The level 1 operator is in charge of receiving manager notifications and identify or confirm when an event should be considered as an incident. The operator must also decide if there is a known resolution for this incident or if it needs a deeper analysys.</t>
        </section>
        <section>
          <name>Analyst</name>
          <t>The analyst will be contacted by the operator to analyze complex incidents that can’t be easily resolved. The investigation starts with the IDMEFv2 information but the analyst might need more information like raw logs for a deeper forensics.</t>
        </section>
        <section>
          <name>Attack</name>
          <t>An attack is an attempt to destroy, expose, alter, disable, steal or gain unauthorized access
                    to or make unauthorized use of a cyber or physical asset. An attack is one or many kinds of
                    incidents.</t>
        </section>
        <section>
          <name>Correlation</name>
          <t>Correlation is the identification of relationships between two or more events.</t>
        </section>
        <section>
          <name>Aggregation</name>
          <t>Aggregation is the consolidation of similar events into a single event.</t>
        </section>
      </section>
    </section>
    <section anchor="data-types">
      <name>The IDMEF Data Types</name>
      <t>Each object inside the IDMEF data model has an associated data type.
            This type may be used to validate the content of incoming IDMEF messages.</t>
      <section>
        <name>Classes</name>
        <t>The classes are meant to group related attributes together.
                Some of the classes may be instanciated multiple times (e.g. Source, Target, etc.)
                while others may only appear once in an IDMEF message (e.g. Analyzer).</t>
      </section>
      <section>
        <name>Numbers</name>
        <section anchor="data-types-integers">
          <name>Integers</name>
          <t>Integers inside the IDMEF data model are expressed using the following ABNF <xref target="RFC5234"/>
                    grammar:</t>
          <sourcecode type="none">integer         =  *1minus int
int             =  zero / ( digit1-9 *DIGIT )
minus           =  %x2D                           ; -
zero            =  %0x30                          ; 0
digit1-9        =  %x31-39                        ; 1-9</sourcecode>
          <t>E.g. 123.</t>
          <t>Such values are indicated with the "INT" type annotation in the model.</t>
        </section>
        <section>
          <name>Floating-point values</name>
          <t>Floating-point values inside the IDMEF data model are expressed using
                    the following ABNF grammar:</t>
          <sourcecode type="none">float           =  integer *1frac
frac            =  decimal-point 1*DIGIT
decimal-point   =  %x2E                            ; .</sourcecode>
          <t>This grammar reuses some of the production rules listed in <xref target="data-types-integers"/>.</t>
          <t>E.g. 12.34.</t>
          <t>Such values are indicated with the "FLOAT" type annotation in the model.</t>
        </section>
      </section>
      <section>
        <name>Strings</name>
        <t>Strings are series of characters from the <xref target="UNICODE"/> standard
                and are used to represent a text.</t>
        <t>For readability, this document uses quotes (") to delimit strings, but please note
                that these quotes are not syntactically part of the actual strings.</t>
        <t>E.g. "Hello world".</t>
        <t>Some of the strings used in the IDMEFv2 data model follow a stricter syntax.
                These are included below for completeness.</t>
        <t>Such values are indicated with the "STRING" type annotation in the model.</t>
        <section anchor="data-types-enums">
          <name>Enumerations</name>
          <t>Enumerations are special strings used when valid values for an IDMEF attribute
                    are restricted to those present in a predefined list.</t>
          <t>Such values are indicated with the "ENUM" type annotation in the model.</t>
        </section>
        <section>
          <name>Timestamps</name>
          <t>Timestamps are used to indicate a specific moment in time.
                    The timestamps used in the IDMEF data model follow the syntax defined by the
                    "date-time" production rule of the grammar in <xref target="RFC3339"/> ch 5.6.</t>
          <t>E.g. "1985-04-12T23:59:59.52Z" represents a moment just before April 5th, 1985
                    in Coordinated Universal Time (UTC).</t>
          <t>Such values are indicated with the "TIMESTAMP" type annotation in the model.</t>
        </section>
        <section>
          <name>Geographical Locations</name>
          <t>Some attributes inside the IDMEF data model may refer to geographical locations
                    using a set of coordinates. The reference system for all geographical coordinates
                    is a geographic coordinate reference system, using the World Geodetic System 1984
                    <xref target="WGS84"/>. The reference system used is the same as for the Global Positioning
                    System (GPS).</t>
          <t>The format for such values can be either "latitude,longitude" or "latitude,longitude,altitude".
                    Each of these coordinates is represented as a floating-point value. The latitude and longitude
                    are expressed in degrees while the altitude is expressed in meters.</t>
          <t>E.g. "48.8584,2.2945,276.13" matches the (3-dimensional) geographical location
                    for the top floor or the Eiffel Tower located in Paris, France, while "48.8584,2.2945"
                    matches the same location in two dimensions (with the altitude removed).</t>
          <t>Such values are indicated with the "GEOLOC" type annotation in the model.</t>
        </section>
        <section>
          <name>UNECE Location Codes (UN/LOCODE)</name>
          <t>Some attributes inside the IDMEF data model may refer to geographical locations
                    using Locations Codes. These codes can be assimilated to an enumeration, where the
                    list of possible values is defined in the United Nations Economic Commission
                    for Europe (UNECE) Codes for Trade <xref target="UN-LOCODE"/>.</t>
          <t>E.g. "FR PAR" is the Location Code for the city of Paris, France.</t>
          <t>Such values are indicated with the "UNLOCODE" type annotation in the model.</t>
        </section>
        <section>
          <name>Uniform Resource Identifiers (URIs)</name>
          <t>The IDMEF data model uses Uniform Resource Identifiers (URIs), as defined in
                    <xref target="RFC3986"/>, when referring to external resources.
                    Unless otherwise specified, either a Uniform Resource Location (URL) or
                    a Uniform Resource Name (URN) may be used where a URI is expected.</t>
          <t>E.g. both "https://example.com/resource" and "urn:myapp:resource" are valid
                    Uniform Resource Identifiers.</t>
          <t>Such values are indicated with the "URI" type annotation in the model.</t>
        </section>
        <section>
          <name>IP Addresses</name>
          <t>IP addresses inside the IDMEF data model are expressed as strings using the
                    traditional dotted-decimal notation for IPv4 addresses (defined by the
                    "dotnum" production rule in the grammar in <xref target="RFC5321"/>),
                    while IPv6 addresses are expressed using the text representation defined in
                    <xref target="RFC4291"/> ch 2.2.</t>
          <t>E.g. "192.0.2.1" represents a valid IPv4 address, while "::1/128" represents
                    a valid IPv6 address.</t>
          <t>It is RECOMMENDED that implementations follow the recommendations for IPv6
                    text representation stated in <xref target="RFC5952"/>.</t>
          <t>Such values are indicated with the "IP" type annotation in the model.</t>
        </section>
        <section>
          <name>E-mail addresses</name>
          <t>E-mail addresses inside the IDMEF data model are expressed as strings
                    using the address specification syntax defined in <xref target="RFC5322"/> ch 3.4.1.</t>
          <t>E.g. "root@example.com".</t>
          <t>Such values are indicated with the "EMAIL" type annotation in the model.</t>
        </section>
        <section>
          <name>Attachment names</name>
          <t>Attachments inside the IDMEF data model are identified using
                    a unique name, composed of a string whose character set is limited to the ASCII
                    letters (A-Z a-z) and digits (0-9).</t>
          <t>E.g. "state" is a valid name for an attachment.</t>
          <t>The constraint on name unicity is enforced per class. That is,
                    but it is not
                    possible for two attachments to share the same name inside the same alert.</t>
          <t>Such values are indicated with the "ID" type annotation in the model.</t>
        </section>
        <section>
          <name>Media types</name>
          <t>Media types are used in the IDMEF data model to describe an attachment's content.
                    The syntax for such values is defined in <xref target="RFC2046"/>.</t>
          <t>IANA keeps a list of all currently registered media types in the Media Types
                    registry .</t>
          <t>E.g. "application/xml" or "text/plain; charset=utf-8".</t>
          <t>Such values are indicated with the "MEDIATYPE" type annotation in the model.</t>
        </section>
        <section>
          <name>Universally Unique IDentifiers (UUIDs)</name>
          <t>Universally Unique Identifiers (UUIDs) are used to uniquely identify IDMEF messages.
                    It is also possible for an IDMEF message to reference other IDMEF messages using
                    their UUIDs. The syntax for UUIDs is defined in <xref target="RFC4122"/>.</t>
          <t>To limit the risk of UUID collisions, implementors SHOULD NOT generate version 4
                    UUIDs (randomly or pseudo-randomly generated UUIDs).</t>
          <t>E.g. "ba2e4ef4-8719-42bb-a712-d6e8871c5c5a".</t>
          <t>UUIDs are case-insensitive when used in comparisons.</t>
          <t>Such values are indicated with the "UUID" type annotation in the model.</t>
        </section>
        <section>
          <name>Protocol Names</name>
          <t>Such values are indicated with the "PROTOCOL" type annotation in the model.</t>
        </section>
        <section>
          <name>IDMEF Paths</name>
          <t>This document defines a way to represent the path to every possible attribute
                    inside an IDMEF message. For conciseness, the top-level "Alert" class is omitted
                    from the path.</t>
          <t>This representation can be used in contexts where the path to an IDMEF attribute
                    is expected. An example of such usage can be seen in the definition of the
                    "AggrCondition" attribute inside the <xref target="class_alert">Alert class</xref>.</t>
          <t>The syntax for these IDMEF paths is expressed in the following ABNF grammar:</t>
          <sourcecode type="none">class-name      =  "Analyzer" / "Sensor" / "Source" / "Target" /
                   "Attachment"
attribute-name  =  1*ALPHA
class-reference =  class-name "."
num             =  *1"-" 1*DIGIT
list-index      =  "(" num ")"
path            =  *1class-reference attribute-name *1list-index</sourcecode>
          <t>Valid attribute names are limited to those defined for the specified
                    class-reference (or in the top-level "Alert" class if class-reference
                    is omitted).</t>
          <t>For example, the following path refers to the "CeaseTime" attribute
                    of the top-level "Alert" class: "CeaseTime".</t>
          <t>Likewise, the following path refers to the "Name" attribute of the
                    "Analyzer" class: "Analyzer.Name".</t>
          <t>For attributes defined as lists (see <xref target="data-types-lists"/>), the path may
                    include the (0-based) index for an entry inside the list.
                    The index defaults to 0 if omitted.
                    This means that several (valid) representations may be used to reference
                    the same IDMEF attribute when list attributes are involved.</t>
          <t>For example, both of the following paths refer to the IP address of the first
                    source associated with an IDMEF message:</t>
          <sourcecode type="none">Source.IP
Source(0).IP</sourcecode>
          <t>Compatible implementations MUST reject paths that reference an unknown
                    class, an unknown attribute, or use a list-index for an IDMEF field
                    which is not defined as a list.</t>
          <t>A compatible implementation MUST also normalize paths before comparing them
                    (e.g. by stripping the text "(0)" from paths referring to list attributes).</t>
        </section>
        <section>
          <name>Hashes</name>
          <t>Hashes are sometimes used inside the data model to protect the integrity
                    (and optionally, authenticity) of attachments.</t>
          <t>The syntax for these values is "function:hash_result", where "function" refers to
                    one of the hashing function names listed in 
                    and "hash_result" contains the hexadecimal notation for the hash result obtained
                    by calling the specified hash function on the input value.</t>
          <t>In the context of IDMEF, either a keyless or keyed hash function may be used
                    to process the raw input value.</t>
          <t>E.g. "sha256:a02735ed8b10ad432d557bd4849c0dac3b23d64706e0618716d6df2def338374"</t>
          <t>Hashes are case-insensitive when used in comparisons.</t>
          <t>Such values are indicated with the "HASH" type annotation in the model.</t>
        </section>
      </section>
      <section anchor="data-types-lists">
        <name>Lists</name>
        <t>Some attributes of the IDMEF data model accept ordered lists of values.</t>
        <t>Such ordered lists are indicated with the "X[]" type annotation in the model.
                where "X" refers to one of the data types defined in <xref target="data-types"/>.
                For example, "ENUM[]" refers to an ordered list of enumeration values.</t>
      </section>
    </section>
    <section>
      <name>The IDMEF extension</name>
      <t>In order to support the dynamic nature of security operations and
            to adapt to specific needs, the
            IDMEFv2  data model will need to continue to evolve.  This section
            discusses how new data elements can be incorporated into the IDMEFv2.
            There is support to add additional enumerated values and new attributes.</t>
      <t>These extension mechanisms are designed so that adding new data
            elements is possible without requiring modifications to this
            document.  Extensions can be implemented publicly or privately.  With
            proven value, well-documented extensions can be incorporated into
            future versions of the specification.</t>
      <section>
        <name>Extending the Enumerated Values of Attributes</name>
        <t>Additional enumerated values can be added to select attributes either
                through the use of specially marked attributes with the "ext-" prefix
                or through a set of corresponding IANA registries.  The former
                approach allows for the extension to remain private.  The latter
                approach is public.</t>
        <section anchor="private-extension-enum">
          <name>Private Extension of Enumerated Values</name>
          <t>The data model supports adding new enumerated values to an attribute
                    without public registration.  For each attribute that supports this
                    extension technique, there is a corresponding attribute in the same
                    element whose name is identical but with a prefix of "ext-".  This
                    special attribute is referred to as the extension attribute.  The
                    attribute being extended is referred to as an extensible attribute.
                    For example, an extensible attribute named "foo" will have a
                    corresponding extension attribute named "ext-foo".  An element may
                    have many extensible attributes.</t>
          <t>In addition to a corresponding extension attribute, each extensible
                    attribute has "ext-value" as one its possible enumerated values.
                    Selection of this particular value in an extensible attribute signals
                    that the extension attribute contains data.  Otherwise, this
                    "ext-value" value has no meaning.</t>
          <t>In order to add a new enumerated value to an extensible attribute,
                    the value of this attribute MUST be set to "ext-value", and the new
                    desired value MUST be set in the corresponding extension attribute.
                    For example, extending the Category  attribute of the Analyzer class
                    would look as follows:</t>
          <sourcecode type="json">Analyzer: {
    ...
    "Category":["ext-value"],
    "ext-Category": "my-new-analyzer-category",
    ....
}</sourcecode>
          <t>A given extension attribute MUST NOT be set unless the corresponding
                    extensible attribute has been set to "ext-value".</t>
        </section>
        <section>
          <name>Public Extension of Enumerated Values</name>
          <t>The data model also supports publicly extending select enumerated
                    attributes.  A new entry can be added by registering a new entry in
                    the appropriate IANA registry. Section (<xref target="iana-registries"/>) provides a mapping
                    between the extensible attributes and their corresponding registry.</t>
        </section>
      </section>
      <section>
        <name>Private Extension of Attributes</name>
        <t>Use of new attributes is possible through the use of the attachment class.
                New attributes and their corresponding values should be stored in the Content
                attribute of an Attachment and the ContentEncoding must be set to JSON.
                For example creating a new attribute to store the email of the operator (in
                charge of solving the incident) will look as follows:</t>
        <sourcecode type="json">"Attachment" : [
    {
    "Name": "Operator",
    "ContentEncoding": "JSON",
    "Content": "{\"OperatorMail\":\"John.Does@acme.com\"}",
    }
[</sourcecode>
      </section>
    </section>
    <section anchor="model">
      <name>The IDMEF Data Model</name>
      <t>In this section, the individual components of the IDMEF data model will be discussed in detail.  For each class, the semantics will be described.</t>
      <section>
        <name>Overview</name>
        <figure anchor="overview-classes">
          <name>IDMEFv2 Overview Classes</name>
          <artwork type="ascii-art" align="center">                         +--------+     +-----+
                         |Analyzer|---&gt; |Alert|
                         +--------+     +-----+
                             ||
                          +------+
                          |Sensor|
                          +------+
                             /\
                            /  \
                           /    \
+------+                  +------+
|Source|    &gt;------&gt;      |Target|
+------+                  +------+</artwork>
        </figure>
        <t>An IDMEF message is composed of an instance of the <xref target="class_alert">Alert class</xref> representing
                the overall properties of the message. It also contains exactly one instance of the
                <xref target="class_analyzer">Analyzer class</xref> and zero or more instances of the <xref target="class_sensor">Sensor class</xref>.  The message may also describe various aspects of an event using the <xref target="class_source">Source</xref> and <xref target="class_target">Target</xref>  classes.</t>
        <t>Last but not least, it may also include zero or more instances of the
                <xref target="class_attachment">Attachment class</xref>, e.g. captured files or network packets related
                to the event for example.</t>
        <t>The relationship between the main Alert class and other classes of the data model
                is shown in <xref target="diagram-classes"/> (attributes are omitted for clarity).</t>
        <figure anchor="diagram-classes">
          <name>IDMEFv2 Classes</name>
          <artwork type="ascii-art" align="center">+-------+            +-------------
| Alert |&lt;&gt;----------|  Analyzer  |
+-------+            +------------+
|       |       0..* +------------+
|       |&lt;&gt;----------|   Sensor   |
|       |            +------------+
|       |       0..* +------------+
|       |&lt;&gt;----------|   Source   |
|       |            +------------+
|       |       0..* +------------+
|       |&lt;&gt;----------|   Target   |
|       |            +------------+
|       |       0..* +------------+
|       |&lt;&gt;----------| Attachment |
+-------+            +------------+</artwork>
        </figure>
        <t>It is important to note that the data model does not specify how an incident
                should be categorized or identified.
                For example, an attacker scanning a network for machines listening on a specific
                port may be identified by one analyzer as a single attack against multiple targets,
                while another analyzer may identify it as multiple attacks from a single source.
                However, once an analyzer has determined the type of alert it plans on sending,
                the data model dictates how that alert should be formatted.</t>
      </section>
      <section anchor="class_alert">
        <name>The Alert Class</name>
        <t>The Alert class contains high level information about the event that triggered the alert.</t>
        <figure anchor="class_alert_diagram">
          <name>The Alert class</name>
          <artwork type="ascii-art" align="center">+------------------------------+
|              Alert           |
+------------------------------+
| STRING      Version          |
| UUID        ID               |
| STRING      OrganisationName |
| STRING      OrganisationId   |
| STRING      EntityName       |
| STRING      EntityId         |
| ENUM[]      EntitySector     |
| ENUM[]      Type             |
| ENUM[]      Category         |
| STRING[]    ext-Category     |
| ENUM        Cause            |
| STRING      Description      |
| ENUM[]      Status           |
| ENUM        Priority         |
| FLOAT       Confidence       |
| STRING      Note             |
| TIMESTAMP   CreateTime       |
| TIMESTAMP   StartTime        |
| TIMESTAMP   EndTime          |
| TIMESTAMP   ReportTime       |
| STRING[]    AltNames         |
| STRING[]    AltCategory      |
| URI[]       Ref              |
| UUID[]      CorrelID         |
| CONDITION[] AggrCondition    |
| UUID[]      PredID           |
| UUID[]      RelID            |
| STRING[]    SignedAttributes |
| STRING      Signature        |
+------------------------------+</artwork>
        </figure>
        <t>The aggregate classes that make up Alert are:</t>
        <dl newline="true">
                    <dt>Analyzer</dt>
                    <dd>
                        <t>Exactly one.
                            An instance of the <xref target="class_analyzer">Analyzer class</xref> that describes the
                            tool/device responsible for the analysis that resulted in the alert being
                            created and sent.</t>
                    </dd>
                
                    <dt>Sensor</dt>
                    <dd>
                        <t>Zero or more.
                            Instances of the <xref target="class_sensor">Sensor class</xref> used to describe the sensor(s)
                            that captured the information used during the analysis.</t>
                        <t>Depending on the tools/devices used to detect incidents, an Analyzer may rely
                            on the output from a single sensor or from multiple sensors to generate alerts.
                            In addition, the Analyzer and Sensor may actually be part of the same physical
                            device and may share some of their attributes (e.g. IP, Hostname, Model, etc.).</t>
                    </dd>
                
                    <dt>Source</dt>
                    <dd>
                        <t>Zero or more.
                            Instances of the <xref target="class_source">Source class</xref> used to describe the source(s)
                            of the incident (e.g. attackers, faulty device, etc.).</t>
                    </dd>
                
                    <dt>Target</dt>
                    <dd>
                        <t>Zero or more.
                            Instances of the <xref target="class_target">Target class</xref> used to describe the target(s)
                            of the incident, i.e. the impacted devices/users/services/locations.</t>
                    </dd>
                
                    <dt>Attachment</dt>
                    <dd>
                        <t>Zero or more.
                            Instances of the <xref target="class_attachment">Attachment class</xref> used to describe
                            the electronic artifacts captured in relation with the event.</t>
                        <t>The intent of the Attachment class is to keep track of the electronic files
                            left as a trail during the event.
                            This may include things like on-disk files (e.g. malware samples), network
                            packet captures, videos or still images from a camera feed, voice recording, etc.</t>
                    </dd>
                </dl>
        <t>The Alert class has the following attributes:</t>
        <dl newline="true">
                    <dt>Version</dt>
                    <dd>
                        <t>Mandatory.
                            The version of the IDMEF format in use by this alert.</t>
                        <t>During the drafts tuning period the version is equal to the draft version.
                            Therefore it is "2.D.V0X" for Draft V0X.</t>
                    </dd>
                
                    <dt>ID</dt>
                    <dd>
                        <t>Mandatory.
                            Unique identifier for the alert.</t>
                    </dd>
                
                    <dt>OrganisationName</dt>
                    <dd>
                        <t>Optional. Corporate/Main Office Organisation Name</t>
                        <t>Useful if alerts are sent to a multi-organisation central incident detection manager.</t>
                        <t>Example: ACME Corporation</t>
                    </dd>
                
                    <dt>OrganisationId</dt>
                    <dd>
                        <t>Optional.  Corporate/Main Office Organisation ID. Where possible official organisation ID manage by national authority.</t>
                        <t>Useful if alerts are sent to a multi-organisation central incident detection manager.</t>
                        <t>This ID has to be chosen depending on the overall detection perimeter and the nature of the monitored organisation (Private/Public, Commercial, International, etc.)</t>
                        <t>Examples: OrganisationId in France could be SIREN, in England could be CR, Germany could be  Handelsregisternummer, Spain could be CIF, Italia could be Partita IVA, USA could be EIN, etc.  Commercial OrganisationId in Europe could be V.A.T ID</t>
                    </dd>
                
                    <dt>EntityName</dt>
                    <dd>
                        <t>Optional. Entity Name, monitored by the organisation, where the incident occurred.</t>
                        <t>Could be a town, region or country name or an internal name.  Could also be the name of a customer for a MSSP centralizing it's customer incidents in a single system.</t>
                        <t>Do not repeat the organisation name in the EntityName</t>
                        <t>Example:</t>
                        <t>- ACME HeadQuaters is located in Paris France and has a local office in India</t>
                        <t>- If the incident occurred in the local office: "OrganisationName": "ACME" , "EntityName": "India"</t>
                        <t>- If the incident occurred in the headquaters: "OrganisationName": "ACME", "EntityName": "Headquaters" (or "Paris")</t>
                    </dd>
                
                    <dt>EntityId</dt>
                    <dd>
                        <t>Optional. Entity ID, monitored by the organisation, where the incident occurred.</t>
                        <t>Useful if organisation and entity are not directly linked, like a customer and a MSSP.</t>
                    </dd>
                
                    <dt>EntitySector</dt>
                    <dd>
                        <t>Optional. The economic sector(s) and sub-sector(s) in which the entity operates. Values follow the dot notation sector.subsector based on the critical infrastructure taxonomy defined in the NIS2 Directive and CER (Critical Entities Resilience) Directive.</t>
                        <t>This attribute enables sector-based correlation, regulatory compliance reporting, and risk context for incident detection.</t>
                        <t>Enumeration available here <xref target="id20"/></t>
                    </dd>
                
                    <dt>Type</dt>
                    <dd>
                        <t>Optional. Incident type.</t>
                        <table anchor="enum-alert-type"><name>Incident types</name>
                            
                            <thead>
                                    <tr>
                                        <th>
                                            <t>Rank</t>
                                        </th>
                                        <th>
                                            <t>Keyword</t>
                                        </th>
                                        <th>
                                            <t>Description</t>
                                        </th>
                                    </tr>
                                </thead><tbody>
                                    <tr>
                                        <td>
                                            <t>0</t>
                                        </td>
                                        <td>
                                            <t>Cyber</t>
                                        </td>
                                        <td>
                                            <t>Incident involving cyberspace, information systems, or digital assets.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>1</t>
                                        </td>
                                        <td>
                                            <t>Physical</t>
                                        </td>
                                        <td>
                                            <t>Incident involving physical assets, facilities, or infrastructure.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>2</t>
                                        </td>
                                        <td>
                                            <t>Availability</t>
                                        </td>
                                        <td>
                                            <t>Incident affecting the availability or performance of a service, system, asset or resource.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>3</t>
                                        </td>
                                        <td>
                                            <t>Hazards</t>
                                        </td>
                                        <td>
                                            <t>Incident arising from natural, societal, technological, environmental, or other hazards.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>4</t>
                                        </td>
                                        <td>
                                            <t>Combined</t>
                                        </td>
                                        <td>
                                            <t>Incident involving two or more incident types.</t>
                                        </td>
                                    </tr>
                                </tbody>
                        </table>
                    </dd>
                
                    <dt>Category</dt>
                    <dd>
                        <t>Optional. Incident category.</t>
                        <t>Enumeration available here <xref target="id21"/></t>
                    </dd>
                
                    <dt>ext-Category</dt>
                    <dd>
                        <t>Optional.
                            A means by which to extend the Category attribute. (see <xref target="private-extension-enum"/>)</t>
                    </dd>
                
                    <dt>Cause</dt>
                    <dd>
                        <t>Optional.
                            Incident cause.
                            The cause can be modified by any analyzer on the way of the alert and later
                            by the operator and/or the analyst if new investigation reveals and confirms
                            a different cause of the event.</t>
                        <table anchor="enum-alert-cause"><name>Incident causes</name>
                            
                            <thead>
                                    <tr>
                                        <th>
                                            <t>Rank</t>
                                        </th>
                                        <th>
                                            <t>Keyword</t>
                                        </th>
                                        <th>
                                            <t>Description</t>
                                        </th>
                                    </tr>
                                </thead><tbody>
                                    <tr>
                                        <td>
                                            <t>0</t>
                                        </td>
                                        <td>
                                            <t>Normal</t>
                                        </td>
                                        <td>
                                            <t>The event is related to an expected phenomenon or to a
                                                phenomenon that does not qualify as out of the ordinary.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>1</t>
                                        </td>
                                        <td>
                                            <t>Error</t>
                                        </td>
                                        <td>
                                            <t>The event is related to a human error.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>2</t>
                                        </td>
                                        <td>
                                            <t>Malicious</t>
                                        </td>
                                        <td>
                                            <t>The event is related to malicious code or malicious actions.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>3</t>
                                        </td>
                                        <td>
                                            <t>Malfunction</t>
                                        </td>
                                        <td>
                                            <t>The event is related to a device or service malfunction.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>4</t>
                                        </td>
                                        <td>
                                            <t>Hazard</t>
                                        </td>
                                        <td>
                                            <t>The event is related to a hazard phenomenon.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>5</t>
                                        </td>
                                        <td>
                                            <t>Unknown</t>
                                        </td>
                                        <td>
                                            <t>The cause of the event is unknown.</t>
                                        </td>
                                    </tr>
                                </tbody>
                        </table>
                    </dd>
                
                    <dt>Description</dt>
                    <dd>
                        <t>Optional.
                            Short free text human-readable description of the event.
                            The description can add detail to the event category for easiest/faster comprehension by the operator.
                            Example :
                            * Cryptoware WannaCry blocked on pegasus server
                            * Unknown person entering through east doorway</t>
                    </dd>
                
                    <dt>Status</dt>
                    <dd>
                        <t>Optional.
                            Event state in the overall event lifecycle.</t>
                        <table anchor="enum-alert-status"><name>Incident statuses</name>
                            
                            <thead>
                                    <tr>
                                        <th>
                                            <t>Rank</t>
                                        </th>
                                        <th>
                                            <t>Keyword</t>
                                        </th>
                                        <th>
                                            <t>Description</t>
                                        </th>
                                    </tr>
                                </thead><tbody>
                                    <tr>
                                        <td>
                                            <t>0</t>
                                        </td>
                                        <td>
                                            <t>Event</t>
                                        </td>
                                        <td>
                                            <t>The event is still considered as an harmless event and should not be treated.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>1</t>
                                        </td>
                                        <td>
                                            <t>Incident</t>
                                        </td>
                                        <td>
                                            <t>The event is considered as an incident and should be taken care of.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>2</t>
                                        </td>
                                        <td>
                                            <t>Open</t>
                                        </td>
                                        <td>
                                            <t>The incident is confirmed and actively being investigated.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>3</t>
                                        </td>
                                        <td>
                                            <t>Closed</t>
                                        </td>
                                        <td>
                                            <t>Investigation is finished and the issue is handled.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>4</t>
                                        </td>
                                        <td>
                                            <t>FalsePositive</t>
                                        </td>
                                        <td>
                                            <t>Investigation is finished, incident was a false positive.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>5</t>
                                        </td>
                                        <td>
                                            <t>Obsolete</t>
                                        </td>
                                        <td>
                                            <t>Incident is obsolete, usually by another incident.</t>
                                        </td>
                                    </tr>
                                </tbody>
                        </table>
                    </dd>
                
                    <dt>Priority</dt>
                    <dd>
                        <t>Optional.
                            Priority of the alert.
                            Priority is defined by combining impact and urgency. It indicates how fast the incident should be taken care of.</t>
                        <table anchor="enum-alert-priority"><name>Incident priorities</name>
                            
                            <thead>
                                    <tr>
                                        <th>
                                            <t>Rank</t>
                                        </th>
                                        <th>
                                            <t>Keyword</t>
                                        </th>
                                        <th>
                                            <t>Description</t>
                                        </th>
                                    </tr>
                                </thead><tbody>
                                    <tr>
                                        <td>
                                            <t>0</t>
                                        </td>
                                        <td>
                                            <t>Unknown</t>
                                        </td>
                                        <td>
                                            <t>Priority unknown</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>1</t>
                                        </td>
                                        <td>
                                            <t>Info</t>
                                        </td>
                                        <td>
                                            <t>Informational event with no current impact; no action or follow-up is required.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>2</t>
                                        </td>
                                        <td>
                                            <t>Low</t>
                                        </td>
                                        <td>
                                            <t>Minor incident with negligible impact; a workaround exists, and resolution can be scheduled.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>3</t>
                                        </td>
                                        <td>
                                            <t>Medium</t>
                                        </td>
                                        <td>
                                            <t>Moderate incident affecting a limited scope; requires timely attention but is not immediately business-threatening.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>4</t>
                                        </td>
                                        <td>
                                            <t>High</t>
                                        </td>
                                        <td>
                                            <t>Significant incident with major service degradation or impact on important assets; demands an urgent response.</t>
                                        </td>
                                    </tr>
                                    <tr>
                                        <td>
                                            <t>5</t>
                                        </td>
                                        <td>
                                            <t>Critical</t>
                                        </td>
                                        <td>
                                            <t>Severe incident with business-critical systems down or vital interests threatened; requires immediate action and escalation.</t>
                                        </td>
                                    </tr>
                                </tbody>
                        </table>
                    </dd>
                
                    <dt>Confidence</dt>
                    <dd>
                        <t>Optional.
                            A floating-point value between 0 and 1 indicating the analyzer's confidence
                            in its own reliability of this particular detection, where 0 means
                            that the detection is surely incorrect while 1 means there is no doubt
                            about the detection made.</t>
                    </dd>
                
                    <dt>Note</dt>
                    <dd>
                        <t>Optional.
                            Free text human-readable additional note, possibly a longer description
                            of the incident if is not already obvious.</t>
                        <t>The Note attribute can be used to store any additional information. It can be additional information about the event and/or about the incident resolution, although the incident resolution information should in principle be stored elsewhere (with a link with the external tool in AltNames)</t>
                    </dd>
                
                    <dt>CreateTime</dt>
                    <dd>
                        <t>Mandatory.
                            Timestamp indicating when the alert was created.</t>
                    </dd>
                
                    <dt>StartTime</dt>
                    <dd>
                        <t>Optional.
                            Timestamp indicating the deduced start of the event.</t>
                        <t>StartTime can be later than CreateTime in case or Alerts created from forecast information (e.g. Snow Storm expected in two days staring at 10h00)</t>
                    </dd>
                
                    <dt>EndTime</dt>
                    <dd>
                        <t>Optional.
                            Timestamp indicating the deduced end of the event.</t>
                    </dd>
                
                    <dt>ReportTime</dt>
                    <dd>
                        <t>Optional.
                            Timestamp indicating the reporting time of the event, usually to an external CSIRT or a central SIEM.</t>
                    </dd>
                
                    <dt>AltNames</dt>
                    <dd>
                        <t>Optional.
                            Alternative identifiers; strings which help pair the event to internal
                            systems' information (for example ticket IDs inside a request tracking
                            systems).</t>
                    </dd>
                
                    <dt>AltCategory</dt>
                    <dd>
                        <t>Optional.
                            Alternate categories from a reference other than IDMEFv2 categories
                            (e.g. MISP, MITRE ATT@CK or another proprietary/internal reference).</t>
                    </dd>
                
                    <dt>Ref</dt>
                    <dd>
                        <t>Optional.
                            References to sources of information related to the incident and/or
                            vulnerability, and specific to this incident.</t>
                        <t>This MAY be a URL to additional info, or a URN in a registered or
                            unregistered ad-hoc namespace bearing reasonable information value
                            and uniqueness, such as "urn:cve:CVE-2013-2266".</t>
                    </dd>
                
                    <dt>CorrelID</dt>
                    <dd>
                        <t>Optional.
                            Identifiers for the  messages which were used as information sources
                            to create this message, in case the message has been created based on
                            correlation/analysis/deduction from other messages.</t>
                    </dd>
                
                    <dt>AggrCondition</dt>
                    <dd>
                        <t>Optional.
                            A list of IDMEF fields used to aggregate events. The values for these
                            fields will be the same in all aggregated events.</t>
                        <t>This attribute should mostly be set by intermediary nodes, which detect
                            duplicates, or aggregate events, spanning multiple detection windows,
                            into a longer one.</t>
                        <t>The "StartTime" and "EndTime" attributes are used in conjunction
                            with this attribute to describe the aggregation window.</t>
                    </dd>
                
                    <dt>PredID</dt>
                    <dd>
                        <t>Optional.
                            A list containing the identifiers of previous messages
                            which are obsoleted by this message.</t>
                        <t>The obsoleted alerts SHOULD NOT be used anymore.
                            This field can be used to "update" an alert.</t>
                    </dd>
                
                    <dt>RelID</dt>
                    <dd>
                        <t>Optional.
                            A list containing the identifiers of other messages related
                            to this message.</t>
                    </dd>
                
                    <dt>SignedAttributes</dt>
                    <dd>
                        <t>Optional.
                            List of IDMEFv2 paths of the attributes included in the signature.</t>
                    </dd>
                
                    <dt>Signature</dt>
                    <dd>
                        <t>Optional.
                            JWS Compact Serialization string containing the signature.</t>
                    </dd>
                </dl>
      </section>
      <section anchor="class_analyzer">
        <name>The Analyzer Class</name>
        <t>The Analyzer class describes the module that has analyzed the data
                captured by the sensors, identified an event of interest and decided
                to create an alert.</t>
        <figure anchor="class_analyzer_diagram">
          <name>The Analyzer class</name>
          <artwork type="ascii-art" align="center">+-----------------------+
|       Analyzer        |
+-----------------------+
| UUID     ID           |
| IP       IP           |
| STRING   Name         |
| STRING   Hostname     |
| STRING   Model        |
| ENUM[]   Category     |
| STRING[] ext-Category |
| ENUM[]   Data         |
| STRING[] ext-Data     |
| ENUM[]   Method       |
| STRING[] ext-Method   |
| GEOLOC   GeoLocation  |
| UNLOCODE UnLocation   |
| STRING   Location     |
| STRING   Locator      |
| STRING   CaptureZone  |
+-----------------------+</artwork>
        </figure>
        <t>The Analyzer class has the following attributes:</t>
        <dl newline="true">
                    <dt>ID</dt>
                    <dd>
                        <t>Optional. Unique identifier for the analyzer.</t>
                    </dd>
                
                    <dt>IP</dt>
                    <dd>
                        <t>Optional. Analyzer IP address.</t>
                    </dd>
                
                    <dt>Name</dt>
                    <dd>
                        <t>Recommended. Name of the analyzer, which must be reasonably unique, however still bear some meaningful sense.</t>
                        <t>This attribute usually denotes the hierarchy of organizational units
                            the detector belongs to and its own name.
                            It MAY also be used to distinguish multiple analyzers running with
                            the same IP address.</t>
                    </dd>
                
                    <dt>Hostname</dt>
                    <dd>
                        <t>Optional. Hostname of this analyzer.</t>
                        <t>SHOULD be a fully-qualified domain name.</t>
                    </dd>
                
                    <dt>Model</dt>
                    <dd>
                        <t>Optional. Analyzer model description (usually its generic name,
                            brand and version).</t>
                    </dd>
                
                    <dt>Category</dt>
                    <dd>
                        <t>Optional. Analyzer categories.</t>
                        <t>Enumeration available here <xref target="id22"/></t>
                    </dd>
                
                    <dt>ext-Category</dt>
                    <dd>
                        <t>Optional.
                            A means by which to extend the Category attribute.  (see <xref target="private-extension-enum"/>)</t>
                    </dd>
                
                    <dt>Data</dt>
                    <dd>
                        <t>Optional. Type of data analyzed during the detection.</t>
                        <t>Enumeration available here <xref target="id23"/></t>
                    </dd>
                
                    <dt>ext-Data</dt>
                    <dd>
                        <t>Optional.
                            A means by which to extend the Data attribute.  (see <xref target="private-extension-enum"/>)</t>
                    </dd>
                
                    <dt>Method</dt>
                    <dd>
                        <t>Optional. Detection method.</t>
                        <t>Enumeration available here <xref target="id24"/></t>
                    </dd>
                
                    <dt>ext-Method</dt>
                    <dd>
                        <t>Optional.
                            A means by which to extend the Method attribute.  (see <xref target="private-extension-enum"/>)</t>
                    </dd>
                
                    <dt>GeoLocation</dt>
                    <dd>
                        <t>Optional. GPS coordinates for the analyzer.</t>
                    </dd>
                
                    <dt>UnLocation</dt>
                    <dd>
                        <t>Optional. Standard UN/Locode for the analyzer.</t>
                    </dd>
                
                    <dt>Location</dt>
                    <dd>
                        <t>Optional. Internal name for the location of the analyzer.</t>
                    </dd>
                
                    <dt>Locator</dt>
                    <dd>
                        <t>Optional. Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.</t>
                    </dd>
                
                    <dt>CaptureZone</dt>
                    <dd>
                        <t>Optional. A string that describes the "capture zone" of the analyzer (if the analyzer is also a sensor), as a JSON-serialized string.</t>
                        <t>Depending on the type of sensor, the capture zone may for instance refer to:</t>
                        <t>A JSON object describing a camera's settings (elevation, horizontal and vertical field of view, azimuth, etc.)</t>
                        <t>A description of the IP network where packet capture is taking place.</t>
                    </dd>
                </dl>
      </section>
      <section anchor="class_sensor">
        <name>The Sensor Class</name>
        <t>The Sensor class describes the module that captured the data before sending
                it to an analyzer. The Sensor may be a subpart of the Analyzer.</t>
        <figure anchor="class_sensor_diagram">
          <name>The Sensor class</name>
          <artwork type="ascii-art" align="center">+----------------------+
|        Sensor        |
+----------------------+
| UUID     ID          |
| IP       IP          |
| STRING   Name        |
| STRING   Hostname    |
| STRING   Model       |
| ENUM[]   Data        |
| STRING[] ext-Data    |
| GEOLOC   GeoLocation |
| UNLOCODE UnLocation  |
| STRING   Location    |
| STRING   Locator     |
| STRING   CaptureZone |
+----------------------+</artwork>
        </figure>
        <t>The Sensor class has the following attributes:</t>
        <dl newline="true">
                    <dt>ID</dt>
                    <dd>
                        <t>Optional. Unique identifier for the sensor.</t>
                    </dd>
                
                    <dt>IP</dt>
                    <dd>
                        <t>Optional. The sensor's IP address.</t>
                    </dd>
                
                    <dt>Name</dt>
                    <dd>
                        <t>Recommended. Name of the sensor, which must be reasonably unique,
                            however still bear some meaningful sense.</t>
                        <t>This attribute usually denotes the hierarchy of organizational units
                            the sensor belongs to and its own name.
                            It MAY also be used to distinguish multiple sensors running with
                            the same IP address.</t>
                    </dd>
                
                    <dt>Hostname</dt>
                    <dd>
                        <t>Optional. The sensor's hostname.</t>
                        <t>This SHOULD be a fully qualified domain name, but may not conform
                            exactly because values extracted from logs, messages, DNS, etc.
                            may themselves be malformed.</t>
                        <t>An empty string MAY be used to explicitly state that this value
                            was inquired but not found (missing DNS entry).</t>
                    </dd>
                
                    <dt>Model</dt>
                    <dd>
                        <t>Optional. The sensor model's description (usually its generic name,
                            brand and version).</t>
                    </dd>
                
                    <dt>Data</dt>
                    <dd>
                        <t>Optional. Type of data captured by the sensor.</t>
                        <t>Enumeration available here <xref target="id23"/></t>
                    </dd>
                
                    <dt>ext-Data</dt>
                    <dd>
                        <t>Optional.
                            A means by which to extend the Data attribute.  (see <xref target="private-extension-enum"/>)</t>
                    </dd>
                
                    <dt>GeoLocation</dt>
                    <dd>
                        <t>Optional. GPS coordinates for the analyzer.</t>
                    </dd>
                
                    <dt>UnLocation</dt>
                    <dd>
                        <t>Optional. Standard UN/Locode for the sensor.</t>
                    </dd>
                
                    <dt>Location</dt>
                    <dd>
                        <t>Optional. Internal name for the location of the sensor.</t>
                    </dd>
                
                    <dt>Locator</dt>
                    <dd>
                        <t>Optional. Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.</t>
                    </dd>
                
                    <dt>CaptureZone</dt>
                    <dd>
                        <t>Optional. A string that describes the "capture zone" of the sensor,
                            as a JSON-serialized string.</t>
                        <t>Depending on the type of sensor, the capture zone may for instance
                            refer to:</t>
                        <ul>
                            <li>
                                <t>A JSON object describing a camera's settings (elevation, horizontal
                                    and vertical field of view, azimuth, etc.)</t>
                            </li>
                            <li>
                                <t>A description of the IP network where packet capture is taking place.</t>
                            </li>
                        </ul>
                    </dd>
                </dl>
      </section>
      <section anchor="class_source">
        <name>The Source Class</name>
        <t>The Source class describes the origin(s) of the event(s) leading up to the creation of this alert.</t>
        <figure anchor="class_source_diagram">
          <name>The Source class</name>
          <artwork type="ascii-art" align="center">+------------------------+
|         Source         |
+------------------------+
| UUID       ID          |
| IP         IP          |
| STRING     Hostname    |
| STRING     Name        |
| ENUM[]     Category    |
| STRING     Note        |
| STRING[]   TI          |
| STRING     User        |
| EMAIL      Email       |
| PROTOCOL[] Protocol    |
| INT[]      Port        |
| GEOLOC     GeoLocation |
| UNLOCODE   UnLocation  |
| STRING     Location    |
| STRING     Locator     |
| ID[]       Attachment  |
+------------------------+</artwork>
        </figure>
        <t>The Source class has the following attributes:</t>
        <dl newline="true">
                    <dt>ID</dt>
                    <dd>
                        <t>Optional.
                            Unique identifier for the source.</t>
                    </dd>
                
                    <dt>IP</dt>
                    <dd>
                        <t>Optional. Source IP address.</t>
                    </dd>
                
                    <dt>Hostname</dt>
                    <dd>
                        <t>Optional. Hostname of this source.</t>
                        <t>This SHOULD be a fully qualified domain name, but may not conform
                            exactly because values extracted from logs, messages, DNS, etc.
                            may themselves be malformed.</t>
                        <t>An empty string MAY be used to explicitly state that this value
                            was inquired but not found (missing DNS entry).</t>
                    </dd>
                
                    <dt>Name</dt>
                    <dd>
                        <t>Optional. Name of this source.</t>
                        <t>Naming the source might be necessary for non digital source like a human, a vehicle, a drone, etc.</t>
                    </dd>
                
                    <dt>Category</dt>
                    <dd>
                        <t>Optional. Source category</t>
                        <t>Enumeration available here <xref target="id25"/></t>
                    </dd>
                
                    <dt>Note</dt>
                    <dd>
                        <t>Optional. Free text human-readable additional note for this source.</t>
                    </dd>
                
                    <dt>TI</dt>
                    <dd>
                        <t>Optional. Threat Intelligence data about the source.</t>
                        <t>Values in this list MUST use the format "attribute:origin",
                            where "attribute" refers to the attribute inside this source
                            found inside a Threat Intelligence database, and "origin"
                            contains a short identifier for the Threat Intelligence database.
                            E.g. "IP:Dshield".</t>
                        <t>Please note that the same attribute may appear multiple times
                            inside the list (because a match was found in multiple
                            Threat Intelligence databases).</t>
                    </dd>
                
                    <dt>User</dt>
                    <dd>
                        <t>Optional. User ID or login responsible for the incident.</t>
                    </dd>
                
                    <dt>Email</dt>
                    <dd>
                        <t>Optional. Email address responsible for the incident.</t>
                        <t>E.g. the value of the "Reply-To" or "From" header inside
                            a phishing e-mail.</t>
                    </dd>
                
                    <dt>Protocol</dt>
                    <dd>
                        <t>Optional. Protocols related to connections from/to this source.</t>
                        <t>If several protocols are stacked, they MUST be ordered from
                            the lowest (the closest to the medium) to the highest (the closest
                            to the application) according to the ISO/OSI model.</t>
                    </dd>
                
                    <dt>Port</dt>
                    <dd>
                        <t>Optional. Source ports involved in the incident.</t>
                        <t>Values in this list MUST be integers and MUST be in the range 1-65535.</t>
                    </dd>
                
                    <dt>GeoLocation</dt>
                    <dd>
                        <t>Optional. GPS coordinates for the source.</t>
                    </dd>
                
                    <dt>UnLocation</dt>
                    <dd>
                        <t>Optional. Standard UN/Locode for the source.</t>
                    </dd>
                
                    <dt>Location</dt>
                    <dd>
                        <t>Optional. Internal name for the location of the source.</t>
                    </dd>
                
                    <dt>Locator</dt>
                    <dd>
                        <t>Optional. Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.</t>
                    </dd>
                
                    <dt>Attachment</dt>
                    <dd>
                        <t>Optional. Identifiers for attachments related to this source.</t>
                        <t>Each identifier listed here MUST match the "Name" attribute for one
                            of the attachments described using the <xref target="class_attachment">Attachment class</xref>.</t>
                    </dd>
                </dl>
      </section>
      <section anchor="class_target">
        <name>The Target Class</name>
        <t>The Target class describes the target(s) impacted by the event(s) leading up to the creation of this alert.</t>
        <figure anchor="class_target_diagram">
          <name>The Target class</name>
          <artwork type="ascii-art" align="center">+------------------------+
|         Target         |
+------------------------+
| UUID       ID          |
| IP         IP          |
| STRING     Hostname    |
| STRING     Name        |
| ENUM[]     Category    |
| STRING     Note        |
| STRING     Service     |
| STRING     User        |
| EMAIL      Email       |
| INT[]      Port        |
| STRING     Polygon     |
| STRING     Circle      |
| GEOLOC     GeoLocation |
| UNLOCODE   UnLocation  |
| STRING     Location    |
| STRING     Locator     |
| ID[]       Attachment  |
+------------------------+</artwork>
        </figure>
        <t>The Target class has the following attributes:</t>
        <dl newline="true">
                    <dt>ID</dt>
                    <dd>
                        <t>Optional.Unique identifier for the target.</t>
                    </dd>
                
                    <dt>IP</dt>
                    <dd>
                        <t>Optional. Target IP address.</t>
                    </dd>
                
                    <dt>Hostname</dt>
                    <dd>
                        <t>Optional. Hostname of this target.</t>
                        <t>This SHOULD be a fully qualified domain name, but may not conform
                            exactly because values extracted from logs, messages, DNS, etc.
                            may themselves be malformed.</t>
                        <t>An empty string MAY be used to explicitly state that this value
                            was inquired but not found (missing DNS entry).</t>
                    </dd>
                
                    <dt>Name</dt>
                    <dd>
                        <t>Optional. Name of this target.</t>
                        <t>Naming the target might be necessary for non digital targets like a human, a vehicle, a building, etc.</t>
                    </dd>
                
                    <dt>Category</dt>
                    <dd>
                        <t>Optional. Target category</t>
                        <t>Enumeration available here <xref target="id26"/></t>
                    </dd>
                
                    <dt>Note</dt>
                    <dd>
                        <t>Optional. Free text human-readable additional note for this target.</t>
                    </dd>
                
                    <dt>Service</dt>
                    <dd>
                        <t>Optional. Should be High Level Service (messaging, internet, ...), if not defined can be process impacted by the incident.</t>
                    </dd>
                
                    <dt>User</dt>
                    <dd>
                        <t>Optional. User ID or login impacted by the incident.</t>
                    </dd>
                
                    <dt>Email</dt>
                    <dd>
                        <t>Optional. Email address impacted by the incident.</t>
                        <t>E.g. the value of the "To" header inside a phishing e-mail.</t>
                    </dd>
                
                    <dt>Port</dt>
                    <dd>
                        <t>Optional. Target ports involved in the incident.</t>
                        <t>Values in this list MUST be integers and MUST be in the range 1-65535.</t>
                    </dd>
                
                    <dt>Polygon</dt>
                    <dd>
                        <t>Optional. Pollygonal incident affected area.
                            Whitespace-delimited list of WGS 84 'latitude,longitude' pairs. Minimum 4 pairs, first equals last</t>
                    </dd>
                
                    <dt>Circle</dt>
                    <dd>
                        <t>Optional. Circular incident infected area.
                            WGS 84 center point 'latitude,longitude' followed by a space and radius in kilometers</t>
                    </dd>
                
                    <dt>GeoLocation</dt>
                    <dd>
                        <t>Optional. GPS coordinates for the target.</t>
                    </dd>
                
                    <dt>UnLocation</dt>
                    <dd>
                        <t>Optional. Standard UN/Locode for the target.</t>
                    </dd>
                
                    <dt>Location</dt>
                    <dd>
                        <t>Optional. Internal name for the location of the target.</t>
                    </dd>
                
                    <dt>Locator</dt>
                    <dd>
                        <t>Optional. Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.</t>
                    </dd>
                
                    <dt>Attachment</dt>
                    <dd>
                        <t>Optional. Identifiers for attachments related to this target.</t>
                        <t>Each identifier listed here MUST match the "Name" attribute for one
                            of the attachments described using the <xref target="class_attachment">Attachment class</xref>.</t>
                    </dd>
                </dl>
      </section>
      <section anchor="class_attachment">
        <name>The Attachment Class</name>
        <t>The Attachment class contains additional data which was captured
                in relation with the event.</t>
        <figure anchor="class_attachment_diagram">
          <name>The Attachment class</name>
          <artwork type="ascii-art" align="center">+----------------------------+
|         Attachment         |
+----------------------------+
| ID         Name            |
| STRING     FileName        |
| HASH[]     Hash            |
| INT        Size            |
| URI[]      Ref             |
| URI[]      ExternalURI     |
| STRING     Note            |
| MEDIATYPE  ContentType     |
| STRING     ContentEncoding |
| STRING     Content         |
+----------------------------+</artwork>
        </figure>
        <t>The Attachment class has the following attributes:</t>
        <dl newline="true">
                    <dt>Name</dt>
                    <dd>
                        <t>Mandatory. A unique identifier among attachments that can be used
                            to reference this attachment from other classes using the
                            "Attachment" attribute.</t>
                    </dd>
                
                    <dt>FileName</dt>
                    <dd>
                        <t>Optional. Attachment filename.</t>
                        <t>This will usually be the original name of the captured file
                            or the name of the file containing the captured content
                            (e.g. a packet capture file).</t>
                    </dd>
                
                    <dt>Hash</dt>
                    <dd>
                        <t>Optional. A list of hash results for the attachment's Content.</t>
                        <t>The values in this list are computed by taking the raw value
                            of the attachment's "Content" attribute.
                            The hash result is computed before any other transformation
                            (e.g. Base64 encoding) is applied to the content, so that a
                            receiving IDMEF system may reverse the transformation, apply
                            the same hashing function and obtain the same hash result.
                            See also the definition for the "ContentEncoding" attribute below.</t>
                        <t>It is RECOMMENDED that compatible implementations use one of
                            the hashing functions from the SHA-2 <xref target="RFC6234"/> or
                            SHA-3 <xref target="NIST.FIPS.202"/> families to compute the hash
                            results in this list.</t>
                    </dd>
                
                    <dt>Size</dt>
                    <dd>
                        <t>Optional. Length of the content (in bytes).</t>
                        <t>This value MUST be a non-negative integer.</t>
                    </dd>
                
                    <dt>Ref</dt>
                    <dd>
                        <t>Optional.
                            References to sources of information related to the incident and/or
                            vulnerability, and specific to this attachment.</t>
                    </dd>
                
                    <dt>ExternalURI</dt>
                    <dd>
                        <t>Optional. If the attachment's content is available and/or recognizable
                            from an external resource, this is the URI (usually a URL) to that resource.</t>
                        <t>This MAY also be a URN in a registered or unregistered ad-hoc namespace
                            bearing reasonable information value and uniqueness, such as
                            "urn:mhr:55eaf7effadc07f866d1eaed9c64e7ee49fe081a" or
                            "magnet:?xt=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C".</t>
                    </dd>
                
                    <dt>Note</dt>
                    <dd>
                        <t>Optional. Free text human-readable additional note for this attachment.</t>
                    </dd>
                
                    <dt>ContentType</dt>
                    <dd>
                        <t>Optional. Internet Media Type of the attachment.</t>
                        <t>For compatibility reasons, implementations SHOULD prefer one of the
                            well-known media types registered in IANA .</t>
                    </dd>
                
                    <dt>ContentEncoding</dt>
                    <dd>
                        <t>Optional. Content encoding.</t>
                        <t>The following encodings are defined in this version of the specification:</t>
                        <ul>
                            <li>
                                <t>"json": The content refers to a JSON object which has been serialized
                                    to a string using the serialization procedure defined in <xref target="RFC8259"/>.</t>
                            </li>
                            <li>
                                <t>"base64": The content has been serialized using the Base64 encoding
                                    defined in <xref target="RFC4648"/>.</t>
                            </li>
                        </ul>
                        <t>The "base64" encoding SHOULD be used when the content contains binary data.
                            If omitted, the "json" encoding MUST be assumed.</t>
                    </dd>
                
                    <dt>Content</dt>
                    <dd>
                        <t>Optional. The attachment's content, in case it is directly embedded
                            inside the message.</t>
                        <t>For large attachments, it is RECOMMENDED that implementations make use
                            of the "ExternalURI" attribute to refererence a copy of the content saved
                            in an external storage mechanism.</t>
                    </dd>
                </dl>
      </section>
      <section anchor="json-sm">
        <name>The JavaScript Object Notation Serialization Method</name>
        <t>This serialization method aims to convert IDMEFv2 messages to a
                format that is easy to parse and process, both by software/hardware
                processors, as well as humans. It relies on the the JavaScript
                Object Notation (JSON) Data Interchange Format defined in [RFC8259].</t>
        <t>Conforming implementations MUST implement all the requirements
                specified in [RFC8259].</t>
        <t>In addition, the following rules MUST be observed when serializing an
                IDMEFv2 message:</t>
        <ul>
                <li>
                    <t>The top-level Alert class (Section 5.2) is represented as a JSON
                        object ([RFC8259]). This JSON object is returned to the calling
                        process at the end of the serialization process.</t>
                </li>
                <li>
                    <t>Aggregate classes are represented as JSON objects and stored as
                        members of the top-level JSON object, using the same name as in
                        the IDMEF data model. E.g. the appears under the name "Analyzer"
                        inside the top-level JSON object.</t>
                </li>
                <li>
                    <t>Attributes are stored as members of the JSON object representing
                        the class they belong to, using the same name as in the IDMEF data
                        model. E.g. the "Version" attribute from the is stored under the
                        name "Version" inside the top-level JSON object.</t>
                </li>
                <li>
                    <t>Lists from the IDMEF data model are represented as JSON arrays
                        ([RFC8259]). This also applies to aggregate classes where a list
                        is expected. E.g. the "Sensor" member inside the top-level JSON
                        object contains a list of objects, where each object represents an
                        instance of the .</t>
                </li>
                <li>
                    <t>The various string-based data types listed in Section 3 are
                        represented as JSON strings ([RFC8259]). Please note that the
                        issues outlined in [RFC8259] regarding strings processing also
                        apply here.</t>
                </li>
                <li>
                    <t>IDMEF attributes with the "NUMBER" data type are represented as
                        JSON numbers ([RFC8259]).</t>
                </li>
            </ul>
      </section>
    </section>
    <section>
      <name>Security Considerations</name>
      <t>This document describes a data representation for exchanging security-related
            information between incident detection system implementations.  Although there
            are no security concerns directly applicable to the format of this data, the
            data itself may contain security-sensitive information whose confidentiality,
            integrity, and/or availability may need to be protected.</t>
      <t>This suggests that the systems used to collect, transmit, process, and store
            this data should be protected against unauthorized use and that the data itself
            should be protected against unauthorized access.</t>
      <t>The underlying messaging format and protocol used to exchange instances of the
            IDMEF MUST provide appropriate guarantees of confidentiality, integrity, and
            authenticity. The use of a standardized security protocol is encouraged.</t>
      <t>The draft-lehmann-idmefv2-https-transport-01.txt document defines the transportation of IDMEF over HTTPs that provides such
            security.</t>
    </section>
    <section>
      <name>IANA Considerations</name>
      <t>This document creates 10 identically structured registries to be
            managed by IANA:</t>
      <ul>
            <li>
                <t>Name of the registry group: "Incident Detection Message Exchange Format v2 (IDMEF)"</t>
            </li>
            <li>
                <t>URL of the registry: http://www.iana.org/assignments/idmefv2</t>
            </li>
            <li>
                <t>Namespace format: A registry entry consists of:</t>
                <ul>
                    <li>
                        <t>Rank. A uniq integer for this namespace. Range starts at 0 and ends at the
                            length of this list. The maximum length of this list is 255.</t>
                    </li>
                    <li>
                        <t>Keyword. A keyword for a given IDMEF attribute. It MUST conform
                            to the formatting specified by the IDMEF "ENUM" data type
                            (<xref target="data-types-enums"/>).</t>
                    </li>
                    <li>
                        <t>Description. A short description of the enumerated keyword.</t>
                    </li>
                    <li>
                        <t>Reference. An optional list of URIs to further describe the value.</t>
                    </li>
                </ul>
            </li>
            <li>
                <t>Allocation policy: Expert Review per <xref target="RFC8126"/>.
                    This reviewer will ensure that the requested registry entry conforms
                    to the prescribed formatting. The reviewer will also ensure that the
                    entry is an appropriate value for the attribute per the information
                    model (<xref target="model"/>).</t>
            </li>
        </ul>
      <t>The registries to be created are named in the "Registry Name" column
            of <xref target="iana-registries"/>. Each registry is initially populated
            with ranks, keywords and descriptions that come from an attribute specified
            in the IDMEF model (<xref target="model"/>).
            The initial Ranks, Keywords and Description fields of a given
            registry are listed in "Initial Values".
            The "Initial Values" column points to a table in this document that
            lists and describes each enumerated keyword. Each enumerated keyword
            in the table gets a corresponding entry in a given registry.
            The initial value of the Reference field of every registry entry
            described below should be this document.</t>
      <table anchor="iana-registries"><name>IANA Enumerated Value Registries</name>
            
            <thead>
                    <tr>
                        <th>
                            <t>Registry Name</t>
                        </th>
                        <th>
                            <t>Initial Values</t>
                        </th>
                    </tr>
                </thead><tbody>
                    <tr>
                        <td>
                            <t>Alert-Type</t>
                        </td>
                        <td>
                            <t><xref target="enum-alert-type"/> (<xref target="class_alert">Alert class</xref>)</t>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <t>Alert-Category</t>
                        </td>
                        <td>
                            <t> (<xref target="class_alert">Alert class</xref>)</t>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <t>Alert-Cause</t>
                        </td>
                        <td>
                            <t><xref target="enum-alert-cause"/> (<xref target="class_alert">Alert class</xref>)</t>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <t>Alert-Priority</t>
                        </td>
                        <td>
                            <t><xref target="enum-alert-priority"/> (<xref target="class_alert">Alert class</xref>)</t>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <t>Alert-Status</t>
                        </td>
                        <td>
                            <t><xref target="enum-alert-status"/> (<xref target="class_alert">Alert class</xref>)</t>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <t>Analyzer-Category</t>
                        </td>
                        <td>
                            <t> (<xref target="class_alert">Alert class</xref>)</t>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <t>Analyzer-Data</t>
                        </td>
                        <td>
                            <t> (<xref target="class_analyzer">Analyzer class</xref>)</t>
                        </td>
                    </tr>
                    <tr>
                        <td>
                            <t>Analyzer-Method</t>
                        </td>
                        <td>
                            <t> (<xref target="class_analyzer">Analyzer class</xref>)</t>
                        </td>
                    </tr>
                </tbody>
        </table>
    </section>
    <section>
      <name>Acknowledgement</name>
      <t>The following groups and individuals contributed to the creation of this document and should be recognized for their efforts.</t>
      <ul>
            <li>
                <t>The former Prelude SIEM team :
                    François Poirotte (Co-author of the first version of this document),
                    Antoine Luong, Song Tran, Selim Menouar and Camille Gardet</t>
            </li>
            <li>
                <t>The core members of the SECEF (SECurity Exchange Format) consortium :
                    Herve Debar (Author of RFC 4765 - IDMEFv1), Guillaume Hiet and François Dechelle</t>
            </li>
            <li>
                <t>The H2020 7SHIELD project (Safety and Security Standards of Space Systems, ground Segments
                    and Satellite data assets , via prevention, detection, response and mitigation of physical
                    and cyber threats) who implemented in real scale first versions of IDMEFv2 on five pilots
                    around Europe helping greatly to improve it.</t>
            </li>
            <li>
                <t>The Digital Europe Safe4Soc project (Standard Alert Exchange Format for SOC) who activaly contribute to
                    draft evolution since V04.</t>
            </li>
            <li>
                <t>All other european research project having deployed and tested IDMEFv2 on their pilots (PRECINCT,
                    CyberNEMO, CyberSEAS, ATLANTIS, ENDURANCE, KINAITICS, TESTUDO)</t>
            </li>
            <li>
                <t>The CESNET team for their work on the [IDEA0] format (based on IDMEFv1) which inspired
                    multiples concepts to IDMEFv2.</t>
            </li>
        </ul>
    </section>
  </middle>
  <back>
    <references title="Normative References">
      <reference anchor="RFC5321" target="https://www.rfc-editor.org/info/rfc5321">
  <front>
    <title>Simple Mail Transfer Protocol</title>
    <author fullname="J. Klensin" initials="J." surname="Klensin"/>
    <date month="October" year="2008"/>
    <abstract>
      <t>This document is a specification of the basic protocol for Internet electronic mail transport. It consolidates, updates, and clarifies several previous documents, making all or parts of most of them obsolete. It covers the SMTP extension mechanisms and best practices for the contemporary Internet, but does not provide details about particular extensions. Although SMTP was designed as a mail transport and delivery protocol, this specification also contains information that is important to its use as a "mail submission" protocol for "split-UA" (User Agent) mail reading systems and mobile environments. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="5321"/>
  <seriesInfo name="DOI" value="10.17487/RFC5321"/>
</reference>
      <reference anchor="RFC2046" target="https://www.rfc-editor.org/info/rfc2046">
  <front>
    <title>Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types</title>
    <author fullname="N. Freed" initials="N." surname="Freed"/>
    <author fullname="N. Borenstein" initials="N." surname="Borenstein"/>
    <date month="November" year="1996"/>
    <abstract>
      <t>This second document defines the general structure of the MIME media typing system and defines an initial set of media types. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="2046"/>
  <seriesInfo name="DOI" value="10.17487/RFC2046"/>
</reference>
      <reference anchor="RFC2119" target="https://www.rfc-editor.org/info/rfc2119">
  <front>
    <title>Key words for use in RFCs to Indicate Requirement Levels</title>
    <author fullname="S. Bradner" initials="S." surname="Bradner"/>
    <date month="March" year="1997"/>
    <abstract>
      <t>In many standards track documents several words are used to signify the requirements in the specification. These words are often capitalized. This document defines these words as they should be interpreted in IETF documents. This document specifies an Internet Best Current Practices for the Internet Community, and requests discussion and suggestions for improvements.</t>
    </abstract>
  </front>
  <seriesInfo name="BCP" value="14"/>
  <seriesInfo name="RFC" value="2119"/>
  <seriesInfo name="DOI" value="10.17487/RFC2119"/>
</reference>
      <reference anchor="RFC5322" target="https://www.rfc-editor.org/info/rfc5322">
  <front>
    <title>Internet Message Format</title>
    <author fullname="P. Resnick" initials="P." role="editor" surname="Resnick"/>
    <date month="October" year="2008"/>
    <abstract>
      <t>This document specifies the Internet Message Format (IMF), a syntax for text messages that are sent between computer users, within the framework of "electronic mail" messages. This specification is a revision of Request For Comments (RFC) 2822, which itself superseded Request For Comments (RFC) 822, "Standard for the Format of ARPA Internet Text Messages", updating it to reflect current practice and incorporating incremental changes that were specified in other RFCs. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="5322"/>
  <seriesInfo name="DOI" value="10.17487/RFC5322"/>
</reference>
      <reference anchor="RFC3339" target="https://www.rfc-editor.org/info/rfc3339">
  <front>
    <title>Date and Time on the Internet: Timestamps</title>
    <author fullname="G. Klyne" initials="G." surname="Klyne"/>
    <author fullname="C. Newman" initials="C." surname="Newman"/>
    <date month="July" year="2002"/>
    <abstract>
      <t>This document defines a date and time format for use in Internet protocols that is a profile of the ISO 8601 standard for representation of dates and times using the Gregorian calendar.</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="3339"/>
  <seriesInfo name="DOI" value="10.17487/RFC3339"/>
</reference>
      <reference anchor="RFC3986" target="https://www.rfc-editor.org/info/rfc3986">
  <front>
    <title>Uniform Resource Identifier (URI): Generic Syntax</title>
    <author fullname="T. Berners-Lee" initials="T." surname="Berners-Lee"/>
    <author fullname="R. Fielding" initials="R." surname="Fielding"/>
    <author fullname="L. Masinter" initials="L." surname="Masinter"/>
    <date month="January" year="2005"/>
    <abstract>
      <t>A Uniform Resource Identifier (URI) is a compact sequence of characters that identifies an abstract or physical resource. This specification defines the generic URI syntax and a process for resolving URI references that might be in relative form, along with guidelines and security considerations for the use of URIs on the Internet. The URI syntax defines a grammar that is a superset of all valid URIs, allowing an implementation to parse the common components of a URI reference without knowing the scheme-specific requirements of every possible identifier. This specification does not define a generative grammar for URIs; that task is performed by the individual specifications of each URI scheme. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="STD" value="66"/>
  <seriesInfo name="RFC" value="3986"/>
  <seriesInfo name="DOI" value="10.17487/RFC3986"/>
</reference>
      <reference anchor="RFC4122" target="https://www.rfc-editor.org/info/rfc4122">
  <front>
    <title>A Universally Unique IDentifier (UUID) URN Namespace</title>
    <author fullname="P. Leach" initials="P." surname="Leach"/>
    <author fullname="M. Mealling" initials="M." surname="Mealling"/>
    <author fullname="R. Salz" initials="R." surname="Salz"/>
    <date month="July" year="2005"/>
    <abstract>
      <t>This specification defines a Uniform Resource Name namespace for UUIDs (Universally Unique IDentifier), also known as GUIDs (Globally Unique IDentifier). A UUID is 128 bits long, and can guarantee uniqueness across space and time. UUIDs were originally used in the Apollo Network Computing System and later in the Open Software Foundation\'s (OSF) Distributed Computing Environment (DCE), and then in Microsoft Windows platforms.</t>
      <t>This specification is derived from the DCE specification with the kind permission of the OSF (now known as The Open Group). Information from earlier versions of the DCE specification have been incorporated into this document. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="4122"/>
  <seriesInfo name="DOI" value="10.17487/RFC4122"/>
</reference>
      <reference anchor="RFC4291" target="https://www.rfc-editor.org/info/rfc4291">
  <front>
    <title>IP Version 6 Addressing Architecture</title>
    <author fullname="R. Hinden" initials="R." surname="Hinden"/>
    <author fullname="S. Deering" initials="S." surname="Deering"/>
    <date month="February" year="2006"/>
    <abstract>
      <t>This specification defines the addressing architecture of the IP Version 6 (IPv6) protocol. The document includes the IPv6 addressing model, text representations of IPv6 addresses, definition of IPv6 unicast addresses, anycast addresses, and multicast addresses, and an IPv6 node's required addresses.</t>
      <t>This document obsoletes RFC 3513, "IP Version 6 Addressing Architecture". [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="4291"/>
  <seriesInfo name="DOI" value="10.17487/RFC4291"/>
</reference>
      <reference anchor="RFC4648" target="https://www.rfc-editor.org/info/rfc4648">
  <front>
    <title>The Base16, Base32, and Base64 Data Encodings</title>
    <author fullname="S. Josefsson" initials="S." surname="Josefsson"/>
    <date month="October" year="2006"/>
    <abstract>
      <t>This document describes the commonly used base 64, base 32, and base 16 encoding schemes. It also discusses the use of line-feeds in encoded data, use of padding in encoded data, use of non-alphabet characters in encoded data, use of different encoding alphabets, and canonical encodings. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="4648"/>
  <seriesInfo name="DOI" value="10.17487/RFC4648"/>
</reference>
      <reference anchor="RFC5234" target="https://www.rfc-editor.org/info/rfc5234">
  <front>
    <title>Augmented BNF for Syntax Specifications: ABNF</title>
    <author fullname="D. Crocker" initials="D." role="editor" surname="Crocker"/>
    <author fullname="P. Overell" initials="P." surname="Overell"/>
    <date month="January" year="2008"/>
    <abstract>
      <t>Internet technical specifications often need to define a formal syntax. Over the years, a modified version of Backus-Naur Form (BNF), called Augmented BNF (ABNF), has been popular among many Internet specifications. The current specification documents ABNF. It balances compactness and simplicity with reasonable representational power. The differences between standard BNF and ABNF involve naming rules, repetition, alternatives, order-independence, and value ranges. This specification also supplies additional rule definitions and encoding for a core lexical analyzer of the type common to several Internet specifications. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="STD" value="68"/>
  <seriesInfo name="RFC" value="5234"/>
  <seriesInfo name="DOI" value="10.17487/RFC5234"/>
</reference>
      <reference anchor="RFC5952" target="https://www.rfc-editor.org/info/rfc5952">
  <front>
    <title>A Recommendation for IPv6 Address Text Representation</title>
    <author fullname="S. Kawamura" initials="S." surname="Kawamura"/>
    <author fullname="M. Kawashima" initials="M." surname="Kawashima"/>
    <date month="August" year="2010"/>
    <abstract>
      <t>As IPv6 deployment increases, there will be a dramatic increase in the need to use IPv6 addresses in text. While the IPv6 address architecture in Section 2.2 of RFC 4291 describes a flexible model for text representation of an IPv6 address, this flexibility has been causing problems for operators, system engineers, and users. This document defines a canonical textual representation format. It does not define a format for internal storage, such as within an application or database. It is expected that the canonical format will be followed by humans and systems when representing IPv6 addresses as text, but all implementations must accept and be able to handle any legitimate RFC 4291 format. [STANDARDS-TRACK]</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="5952"/>
  <seriesInfo name="DOI" value="10.17487/RFC5952"/>
</reference>
      <reference anchor="RFC8259" target="https://www.rfc-editor.org/info/rfc8259">
  <front>
    <title>The JavaScript Object Notation (JSON) Data Interchange Format</title>
    <author fullname="T. Bray" initials="T." role="editor" surname="Bray"/>
    <date month="December" year="2017"/>
    <abstract>
      <t>JavaScript Object Notation (JSON) is a lightweight, text-based, language-independent data interchange format. It was derived from the ECMAScript Programming Language Standard. JSON defines a small set of formatting rules for the portable representation of structured data.</t>
      <t>This document removes inconsistencies with other specifications of JSON, repairs specification errors, and offers experience-based interoperability guidance.</t>
    </abstract>
  </front>
  <seriesInfo name="STD" value="90"/>
  <seriesInfo name="RFC" value="8259"/>
  <seriesInfo name="DOI" value="10.17487/RFC8259"/>
</reference>
      <reference target="https://www.unicode.org/versions/Unicode14.0.0/" anchor="UNICODE">
        <front>
          <title>Unicode Standard</title>
          <author>
            <organization>Unicode Consortium</organization>
          </author>
          <date day="14" month="September" year="2021"/>
        </front>
        <seriesInfo name="version" value="14.0.0"/>
      </reference>
      <reference anchor="IANA_media_types" target="http://www.iana.org/assignments/media-types">
  <front>
    <title>Media Types</title>
    <author>
      <organization>IANA</organization>
    </author>
  </front>
</reference>
      <reference anchor="IANA_hash_function_text_names" target="http://www.iana.org/assignments/hash-function-text-names">
  <front>
    <title>Hash Function Textual Names</title>
    <author>
      <organization>IANA</organization>
    </author>
  </front>
</reference>
      <reference target="https://unece.org/trade/cefact/unlocode-code-list-country-and-territory" anchor="UN-LOCODE">
        <front>
          <title abbrev="UN/LOCODE">UN/LOCODE Code List by Country and Territory</title>
          <author>
            <organization abbrev="UNECE">United Nations Economic Commission for Europe</organization>
          </author>
          <date day="6" month="July" year="2021"/>
        </front>
      </reference>
    </references>
    <references title="Informative References">
      <reference anchor="RFC4765" target="https://www.rfc-editor.org/info/rfc4765">
  <front>
    <title>The Intrusion Detection Message Exchange Format (IDMEF)</title>
    <author fullname="H. Debar" initials="H." surname="Debar"/>
    <author fullname="D. Curry" initials="D." surname="Curry"/>
    <author fullname="B. Feinstein" initials="B." surname="Feinstein"/>
    <date month="March" year="2007"/>
    <abstract>
      <t>The purpose of the Intrusion Detection Message Exchange Format (IDMEF) is to define data formats and exchange procedures for sharing information of interest to intrusion detection and response systems and to the management systems that may need to interact with them.</t>
      <t>This document describes a data model to represent information exported by intrusion detection systems and explains the rationale for using this model. An implementation of the data model in the Extensible Markup Language (XML) is presented, an XML Document Type Definition is developed, and examples are provided. This memo defines an Experimental Protocol for the Internet community.</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="4765"/>
  <seriesInfo name="DOI" value="10.17487/RFC4765"/>
</reference>
      <reference anchor="RFC8126" target="https://www.rfc-editor.org/info/rfc8126">
  <front>
    <title>Guidelines for Writing an IANA Considerations Section in RFCs</title>
    <author fullname="M. Cotton" initials="M." surname="Cotton"/>
    <author fullname="B. Leiba" initials="B." surname="Leiba"/>
    <author fullname="T. Narten" initials="T." surname="Narten"/>
    <date month="June" year="2017"/>
    <abstract>
      <t>Many protocols make use of points of extensibility that use constants to identify various protocol parameters. To ensure that the values in these fields do not have conflicting uses and to promote interoperability, their allocations are often coordinated by a central record keeper. For IETF protocols, that role is filled by the Internet Assigned Numbers Authority (IANA).</t>
      <t>To make assignments in a given registry prudently, guidance describing the conditions under which new values should be assigned, as well as when and how modifications to existing values can be made, is needed. This document defines a framework for the documentation of these guidelines by specification authors, in order to assure that the provided guidance for the IANA Considerations is clear and addresses the various issues that are likely in the operation of a registry.</t>
      <t>This is the third edition of this document; it obsoletes RFC 5226.</t>
    </abstract>
  </front>
  <seriesInfo name="BCP" value="26"/>
  <seriesInfo name="RFC" value="8126"/>
  <seriesInfo name="DOI" value="10.17487/RFC8126"/>
</reference>
      <reference anchor="RFC6234" target="https://www.rfc-editor.org/info/rfc6234">
  <front>
    <title>US Secure Hash Algorithms (SHA and SHA-based HMAC and HKDF)</title>
    <author fullname="D. Eastlake 3rd" initials="D." surname="Eastlake 3rd"/>
    <author fullname="T. Hansen" initials="T." surname="Hansen"/>
    <date month="May" year="2011"/>
    <abstract>
      <t>Federal Information Processing Standard, FIPS</t>
    </abstract>
  </front>
  <seriesInfo name="RFC" value="6234"/>
  <seriesInfo name="DOI" value="10.17487/RFC6234"/>
</reference>
      <reference anchor="NIST.FIPS.202" target="https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf">
<front>
<title>SHA-3 Standard: Permutation-Based Hash and Extendable-Output Functions</title>
<author initials="Morris J." surname="Dworkin" fullname="Morris J. Dworkin">
<organization>Information Technology Laboratory</organization>
</author>
<date year="2015" month="July"/>
</front>
<seriesInfo name="NIST" value="NIST FIPS 202"/>
<seriesInfo name="DOI" value="10.6028/NIST.FIPS.202"/>
</reference>
      <reference target="https://apps.dtic.mil/sti/pdfs/ADA280358.pdf" anchor="WGS84">
        <front>
          <title>Department of Defense World Geodetic System 1984: Its Definition and Relationships with Local Geodetic Systems</title>
          <author>
            <organization>National Imagery and Mapping Agency</organization>
          </author>
          <date year="1984"/>
        </front>
        <seriesInfo name="Third" value="Edition"/>
      </reference>
      <reference target="https://idea.cesnet.cz/en/definition" anchor="IDEA0">
        <front>
          <title>Intrusion Detection Extensible Alert version 0</title>
          <author>
            <organization>CESNET</organization>
          </author>
          <date day="25" month="September" year="2015"/>
        </front>
      </reference>
    </references>
    <section>
      <name>Using IDMEFv2 in Dynamic Environments</name>
      <t>1.0</t>
      <t>Proposal</t>
      <t>October 2026</t>
      <section>
        <name>The Dynamic Asset Problem</name>
        <t>Modern container orchestration platforms and cloud runtime environments
                create and terminate resources dynamically. IP addresses may change or be
                reassigned, resource names may be reused, and an entity involved in a security
                incident may no longer exist when an investigation takes place.</t>
        <t>Consequently, identifying a resource solely by its IP address or hostname is
                insufficient for reliable incident correlation and post-incident investigation.</t>
        <t>IDMEFv2 provides complementary attributes that can describe dynamic
                entities in the , , , and  classes.
                The  attribute identifies an entity in the IDMEFv2 data model, while
                , , and  provide additional information about
                its network presence, operational hostname, and infrastructure context.</t>
        <t>These attributes serve different purposes and SHOULD be used together when
                the relevant information is available. They do not, by themselves, guarantee
                the long-term availability of historical records or the continued existence of
                the resource.</t>
      </section>
      <section>
        <name>Complementary Identification Attributes</name>
        <t>The following attributes have complementary roles when describing
                dynamic resources.</t>
        <section>
          <name>ID</name>
          <t>The  attribute identifies an entity in the IDMEFv2 data model. It MUST
                    be populated in accordance with the applicable IDMEFv2 specification.</t>
          <t>An IDMEFv2 identifier and a platform-native identifier are different concepts.
                    For example, a Kubernetes pod UID identifies a Kubernetes object instance;
                    it is not a substitute for the IDMEFv2  attribute. Implementations that
                    need to correlate multiple alerts concerning the same resource SHOULD define
                    a consistent mapping between the resource identity and the IDMEFv2 entity
                    identifier. They SHOULD also distinguish successive resource instances when
                    a platform reuses an operational name.</t>
          <t>The identifier MUST NOT be assumed to provide access to a resource or to its
                    historical metadata after termination.</t>
        </section>
        <section>
          <name>IP</name>
          <t>The  attribute records the network address associated with the entity in
                    the context of the event.</t>
          <t>It supports correlation with network telemetry, firewall logs, flow records, and
                    other security monitoring data. However, an IP address is a time-dependent
                    network attribute and MUST NOT be treated as a persistent identifier of an
                    dynamic resource.</t>
          <t>When available, the event timestamp and relevant network context SHOULD
                    be retained to support the interpretation of the address at the time of the
                    incident.</t>
          <t>Implementations SHOULD distinguish addresses belonging to different
                    infrastructure layers, such as a pod, container, node, NAT gateway, or proxy,
                    when this distinction is relevant to the investigation.</t>
        </section>
        <section>
          <name>Hostname</name>
          <t>The  attribute records the hostname observed or configured for
                    the entity. It SHOULD contain an actual hostname, not an unrelated platform
                    identifier.</t>
          <t>For a Kubernetes pod, the hostname can be configured through the pod's
                    hostname settings or obtained from the runtime environment. A pod name and
                    the hostname used inside the pod may happen to be the same, but they are not
                    interchangeable by definition. Implementations SHOULD record the actual
                    hostname observed or configured for the pod.</t>
          <t>Hostnames can facilitate operational identification and correlation during a
                    resource's lifetime. However, hostnames may be reused, and their uniqueness
                    may be limited to a particular namespace, cluster, runtime, or time interval.
                    Consequently,  SHOULD NOT be considered a globally unique or
                    permanently stable identifier without additional context.</t>
        </section>
        <section>
          <name>Locator</name>
          <t>The  attribute can carry a platform-specific resource reference
                    that provides additional context for identifying an entity within its
                    infrastructure.</t>
          <t>Depending on the environment, this reference MAY contain a cloud resource
                    identifier, an orchestration resource path, a container identifier qualified by
                    its runtime, or a combination of identifiers that uniquely identifies the
                    relevant resource within its scope.</t>
          <t>Implementations SHOULD prefer references that identify the individual
                    resource involved in the event rather than only its parent cluster, service, or
                    workload definition.</t>
          <t>Where appropriate, a reference MAY include additional context, such as a
                    cluster identifier, namespace, node identifier, container identifier, or
                    resource UID.</t>
          <t>Implementations using platform-specific references SHOULD document their
                    syntax, scope, uniqueness properties, and interpretation.</t>
          <t>A  value does not, by itself, guarantee that a terminated resource
                    can be retrieved or that its historical metadata remains available. Systems
                    requiring post-incident traceability MUST retain the relevant historical
                    metadata and security telemetry for the required investigation period.</t>
        </section>
      </section>
      <section>
        <name>Platform-Specific Resource References</name>
        <t>The examples below illustrate how  can be populated in different
                environments. The URI schemes used in these examples, including ,
                , , , and , are illustrative
                implementation conventions. They are not defined or standardized by IDMEFv2.</t>
        <t>The values are illustrative and MUST be replaced with identifiers and hostnames
                obtained from the relevant platform in an actual deployment. UUID-shaped
                values shown in the examples are illustrative IDMEFv2 entity identifiers; they
                are not Kubernetes UIDs unless explicitly placed in a platform reference.</t>
        <section>
          <name>Kubernetes</name>
          <t>In Kubernetes, a pod name alone may not be sufficient to distinguish
                    successive instances that share the same name. The pod UID SHOULD be
                    retained when available.</t>
          <t>A reference SHOULD include the cluster context, namespace, pod name, and
                    pod UID. Container-specific information MAY be added when the investigation
                    concerns an individual container.</t>
          <t>The  values below identify IDMEFv2 entities. The  values
                    are illustrative actual hostnames configured or observed for the respective
                    pods; they are not merely Kubernetes pod names. The pod names and UIDs are
                    retained in .</t>
          <t>Example:</t>
          <sourcecode type="json">{
  "CreateTime": "2026-10-19T10:15:30Z",
  "Analyzer": [
    {
      "ID": "7d6a3c21-1b4e-4f80-9a12-6e5b2c8d901f",
      "IP": "10.10.0.11",
      "Hostname": "secops-collector-01.example.net",
      "Locator": "k8s://cluster-secops/namespace-monitoring/pod/idmefv2-analyzer?uid=11111111-1111-4111-8111-111111111111"
    }
  ],
  "Sensor": [
    {
      "ID": "8e7b4d32-2c5f-4a91-8b23-7f6c3d9e012a",
      "IP": "10.10.0.12",
      "Hostname": "network-sensor-01.example.net",
      "Locator": "k8s://cluster-prod-eu/namespace-monitoring/pod/network-sensor?uid=22222222-2222-4222-8222-222222222222"
    }
  ],
  "Source": [
    {
      "ID": "9f8c5e43-3d60-4ba2-9c34-8a7d4e0f123b",
      "IP": "10.244.2.15",
      "Hostname": "payment-worker-01.namespace-paiement.example.net",
      "Locator": "k8s://cluster-prod-eu/namespace-paiement/pod/payment-worker-5c8d9f-abc123?uid=6a1f8b42-3c9d-4e70-a521-8b7d9c2e104f&amp;container=worker&amp;node=node-worker-03"
    }
  ],
  "Target": [
    {
      "ID": "a09d6f54-4e71-4cb3-8d45-9b8e5f10234c",
      "IP": "10.244.3.20",
      "Hostname": "payment-api-01.namespace-paiement.example.net",
      "Locator": "k8s://cluster-prod-eu/namespace-paiement/pod/payment-api-7b8c9d-xyz789?uid=33333333-3333-4333-8333-333333333333&amp;container=api&amp;node=node-worker-04",
      "Service": "finance"
    }
  ]
}</sourcecode>
          <t>The  reference is an illustrative convention. The pod UID identifies
                    the Kubernetes object instance, while the cluster and namespace provide the
                    context required to interpret the reference.</t>
          <t>Node-level information MAY be included when it helps correlate the event with
                    network sensors or host-level telemetry.</t>
        </section>
        <section>
          <name>Docker and Podman</name>
          <t>For standalone container runtimes such as Docker and Podman, a container
                    name alone may be insufficient because names can be reused after a container
                    is removed.</t>
          <t> SHOULD identify the container instance and, where necessary, the
                    runtime host or engine. The full container identifier SHOULD be preferred
                    over the human-readable container name.</t>
          <t>Example:</t>
          <sourcecode type="json">{
  "Target": [
    {
      "ID": "b10e7a65-5f82-4dc4-9e56-0c9f6a21345d",
      "IP": "172.17.0.3",
      "Hostname": "web-app-01.example.net",
      "Locator": "docker://server-web-01/containers/a1b2c3d4e5f67890123456789012345678901234567890123456789012345678",
      "Service": "e-commerce"
    }
  ]
}</sourcecode>
          <t>The  scheme is an illustrative convention, not an official Docker
                    URI scheme. A corresponding convention MAY be defined for Podman, for example
                    using a  scheme. Implementations SHOULD document whether the
                    reference identifies the container, the runtime instance, the host, or a
                    combination of these entities.</t>
          <t>Where multiple runtime hosts or engines are involved, the reference SHOULD
                    include enough context to avoid ambiguity.</t>
        </section>
        <section>
          <name>Google Cloud GKE</name>
          <t>For Google Kubernetes Engine (GKE), a reference can combine the Google
                    Cloud project and cluster context with the Kubernetes namespace, pod name,
                    and pod UID.</t>
          <t>The cluster resource identifier alone identifies the cluster, not the individual
                    pod involved in the incident.</t>
          <t>Example:</t>
          <sourcecode type="json">{
  "Target": [
    {
      "ID": "c21f8b76-6083-4ed5-af67-1d0a7b32456e",
      "IP": "10.244.2.15",
      "Hostname": "payment-worker-01.namespace-paiement.example.net",
      "Locator": "gke://projects/my-project-123/locations/us-west1/clusters/cluster-prod-eu/namespaces/namespace-paiement/pods/payment-worker-5c8d9f-abc123?uid=6a1f8b42-3c9d-4e70-a521-8b7d9c2e104f&amp;container=worker",
      "Service": "finance"
    }
  ]
}</sourcecode>
          <t>The  scheme is an illustrative convention rather than an official
                    Google Cloud resource URI format. Implementations MAY instead use a
                    documented Google Cloud resource identifier together with the Kubernetes
                    identifiers required to identify the individual pod.</t>
        </section>
        <section>
          <name>AWS ECS</name>
          <t>In Amazon Elastic Container Service (ECS), the task ARN identifies a task
                    instance, whereas the task definition ARN identifies a versioned task
                    definition.</t>
          <t>For incident investigation involving a particular running or terminated task,
                     SHOULD identify the task instance rather than only its task
                    definition. The task definition ARN MAY be retained separately as supplementary
                    configuration context.</t>
          <t>Example:</t>
          <sourcecode type="json">{
  "Target": [
    {
      "ID": "d32f8a76-4b19-4c52-9d63-0a8e7f6b1234",
      "IP": "10.0.1.42",
      "Hostname": "payment-worker-01.example.net",
      "Locator": "arn:aws:ecs:us-west-1:123456789012:task/cluster-prod-eu/0123456789abcdef0123456789abcdef",
      "Service": "finance"
    }
  ]
}</sourcecode>
          <t>The ARN is illustrative. Implementations MUST use the actual task ARN
                    returned by ECS and SHOULD retain the cluster context when needed to
                    interpret the reference.</t>
          <t>When the incident concerns an individual container within a task, the relevant
                    container identifier SHOULD also be retained when available.</t>
          <t>The task definition ARN MAY be recorded as additional information to identify
                    the configuration used by the task. It MUST NOT be substituted for the task
                    instance identifier when the objective is to distinguish individual task
                    executions.</t>
        </section>
        <section>
          <name>Microsoft Azure AKS</name>
          <t>In Azure Kubernetes Service (AKS), the Azure Resource Manager (ARM)
                    resource ID of a managed cluster identifies the cluster, not an individual pod.</t>
          <t>A pod-level reference SHOULD therefore combine the Azure subscription,
                    resource group, and cluster context with the Kubernetes namespace, pod
                    name, and pod UID.</t>
          <t>Example:</t>
          <sourcecode type="json">{
  "Target": [
    {
      "ID": "e43f9b87-5c20-4d63-8e74-1b9f6a20345d",
      "IP": "10.240.0.15",
      "Hostname": "payment-worker-01.namespace-paiement.example.net",
      "Locator": "aks://subscriptions/12345678-1234-1234-1234-123456789012/resourceGroups/my-rg/managedClusters/cluster-prod-eu/namespaces/namespace-paiement/pods/payment-worker-5c8d9f-abc123?uid=6a1f8b42-3c9d-4e70-a521-8b7d9c2e104f",
      "Service": "finance"
    }
  ]
}</sourcecode>
          <t>The  scheme is an illustrative convention, not an official ARM
                    resource identifier for a pod.</t>
          <t>Implementations MAY retain the cluster ARM resource ID as a separate
                    reference or incorporate it into a documented platform-specific representation.
                    The reference SHOULD distinguish the individual Kubernetes resource from its
                    parent cluster.</t>
        </section>
        <section>
          <name>HashiCorp Nomad</name>
          <t>In HashiCorp Nomad, an allocation identifier can provide a reference to a
                    particular workload allocation. The reference SHOULD include sufficient
                    context to distinguish allocations across clusters, regions, namespaces, or
                    jobs, as applicable.</t>
          <t>Example:</t>
          <sourcecode type="json">{
  "Target": [
    {
      "ID": "f54a0c98-6d31-4e75-9a82-2c7f1b60345e",
      "IP": "172.17.0.5",
      "Hostname": "payment-worker-01.example.net",
      "Locator": "nomad://region-eu/cluster-prod/job-payment/alloc-01234567-89ab-cdef-0123-456789abcdef?task=worker",
      "Service": "finance"
    }
  ]
}</sourcecode>
          <t>The  scheme is an illustrative convention. Implementations SHOULD
                    use the actual allocation identifier provided by Nomad and document the
                    context required to interpret it.</t>
          <t>Task-level or container-level information MAY be included when necessary to
                    distinguish the specific runtime entity involved in the event.</t>
        </section>
      </section>
      <section>
        <name>Scope of the Service Attribute</name>
        <t>The  attribute in the  class SHOULD describe the
                high-level service or process affected, consistently with the IDMEFv2
                specification.</t>
        <t>For example, values such as , , and 
                can identify business-level services associated with the target.</t>
        <t>Implementations SHOULD avoid using  as an undocumented substitute
                for platform-specific resource identifiers, such as pod names, container IDs,
                allocation IDs, task ARNs, or cluster resource IDs.</t>
        <t>Where business services and technical runtime services must be distinguished,
                implementations SHOULD document the mapping between these concepts and
                the relevant IDMEFv2 attributes.</t>
        <t>The use of  for a particular purpose MUST remain consistent with
                the attribute definition in the applicable version of the IDMEFv2 specification.</t>
      </section>
      <section>
        <name>Temporal Context and Historical Retention</name>
        <t>Reliable post-incident investigation requires more than a stable resource
                reference.</t>
        <t>Implementations SHOULD preserve the event timestamp and sufficient
                contextual information to determine which resource instance, network
                address, and runtime environment were involved at the time of the event.</t>
        <t>The IDMEFv2 time attributes SHOULD be used according to their defined
                semantics. In particular,  indicates when the alert was created,
                whereas  describes the start of the activity or situation being
                reported when that information is available. They are not interchangeable,
                and neither should be assumed to represent the exact measurement time of
                every individual attribute. Implementations SHOULD retain any additional
                timestamps required to interpret time-sensitive measurements accurately.</t>
        <t>Systems requiring long-term traceability MUST retain the historical metadata
                and security telemetry needed for the intended investigation period. Such
                information can include orchestration events, container lifecycle records,
                cloud audit logs, network flow records, and mappings between resource
                identifiers and network addresses.</t>
        <t>A  value MAY be used as a lookup key into retained historical
                records. However, the availability and retention of those records are properties
                of the surrounding monitoring and logging infrastructure, not guarantees
                provided by the  attribute itself.</t>
      </section>
      <section>
        <name>Summary</name>
        <t>Ephemeral environments require a distinction between entity identification,
                network correlation, and historical resource context.</t>
        <t>The  attribute identifies the entity in the IDMEFv2 data model. 
                records the network address observed in the context of the event, 
                provides the actual configured or observed hostname, and  can
                carry a platform-specific reference to the relevant resource.</t>
        <t>Implementations SHOULD use resource references that identify individual
                instances rather than only their parent clusters or configuration definitions.
                They SHOULD preserve sufficient temporal and infrastructure context to
                distinguish successive instances and correlate events across security telemetry
                sources.</t>
        <t>Long-term traceability additionally depends on the retention and availability
                of historical metadata and security records.</t>
        <t>This approach enables IDMEFv2 to represent dynamic resources across
                different orchestration platforms and container runtimes without requiring a
                separate IDMEFv2 extension for each environment. Platform-specific reference
                formats remain implementation conventions and SHOULD be documented to
                support interoperability.</t>
        <t>The JSON fragments are illustrative. Their exact structure MUST conform to
                the applicable IDMEFv2 serialization and schema.</t>
      </section>
    </section>
    <section>
      <name>IDMEFv2 Alert Signature Specification</name>
      <t>1.0</t>
      <t>Proposal</t>
      <t>October 2026</t>
      <t>This appendix defines a standardized mechanism for signing IDMEFv2 alerts. The
            signature ensures the integrity and authenticity of alert data while allowing
            certain attributes to remain modifiable without invalidating the signature
            (partial signing).</t>
      <t>The mechanism builds upon the following standards:</t>
      <ul>
            <li>
                <t><strong>JWS</strong> (RFC 7515) — signature format;</t>
            </li>
            <li>
                <t><strong>JCS</strong> (RFC 8785) — JSON canonicalization;</t>
            </li>
            <li>
                <t><strong>JWA</strong> (RFC 7518) — cryptographic algorithms;</t>
            </li>
            <li>
                <t><strong>JWK</strong> (RFC 7517) — key representation;</t>
            </li>
            <li>
                <t><strong>IDMEFv2 Paths</strong> (Section 3.3.12 of the draft) — attribute selection.</t>
            </li>
        </ul>
      <t>The key words <strong>MUST</strong>, <strong>MUST NOT</strong>, <strong>SHOULD</strong>, <strong>SHOULD NOT</strong>, <strong>MAY</strong> and
            <strong>RECOMMENDED</strong> are to be interpreted as described in RFC 2119.</t>
      <section>
        <name>Overview</name>
        <t>The mechanism adds two optional attributes to the  class:</t>
        <ol type="%d.">
                <li>
                    <t><strong>``SignedAttributes``</strong>: a list of IDMEFv2 paths identifying the attributes
                        to be signed;</t>
                </li>
                <li>
                    <t><strong>``Signature``</strong>: a string containing the JWS Compact Serialization of the
                        signature.</t>
                </li>
            </ol>
        <t>The signing process follows these steps:</t>
        <ol type="%d.">
                <li>
                    <t>populate  with the list of IDMEFv2 paths;</t>
                </li>
                <li>
                    <t>build the signed payload object as defined in <xref target="signed-attributes-and-payload-construction">Signed Attributes and Payload
                            Construction</xref>;</t>
                </li>
                <li>
                    <t>canonicalize this object using JCS (RFC 8785);</t>
                </li>
                <li>
                    <t>build the protected JWS header (containing , and optionally );</t>
                </li>
                <li>
                    <t>produce the JWS Compact Serialization as defined in <xref target="signature-format" format="title"/>;</t>
                </li>
                <li>
                    <t>store the result in the  attribute.</t>
                </li>
            </ol>
      </section>
      <section anchor="signature-format">
        <name>Signature Format: JWS Compact Serialization</name>
        <t>The  attribute <strong>MUST</strong> use the JWS Compact Serialization format
                defined in RFC 7515.</t>
        <section>
          <name>Structure</name>
          <sourcecode type="none">BASE64URL(JWS Protected Header) "." BASE64URL(JWS Payload) "." BASE64URL(JWS Signature)</sourcecode>
          <t>The JWS payload <strong>MUST</strong> be <strong>embedded</strong> (not detached) in the Compact
                    serialization. It corresponds to the canonicalized representation of the
                    payload object defined in <xref target="signed-attributes-and-payload-construction">Signed Attributes and Payload Construction</xref>, encoded
                    in base64url as specified by RFC 7515.</t>
          <blockquote>
            <t>Note: The payload is derived from the alert itself; embedding it guarantees that
                        the verifier has access to the exact representation that was signed,
                        independently of any re-serialization of the alert. The unencoded payload
                        option of RFC 7797 is <strong>not</strong> used.</t>
          </blockquote>
        </section>
        <section>
          <name>Protected Header</name>
          <t>The protected JWS header <strong>MUST</strong> contain the  parameter. It <strong>SHOULD</strong>
                    contain the  parameter. It <strong>MUST NOT</strong> contain any  parameter
                    not specified by this annex.</t>
        </section>
        <section>
          <name>Example</name>
          <sourcecode type="json">"Signature": "&lt;valid JWS Compact string, to be provided in test vectors&gt;"</sourcecode>
        </section>
      </section>
      <section anchor="signed-attributes-and-payload-construction">
        <name>Signed Attributes and Payload Construction</name>
        <section>
          <name>Path Syntax</name>
          <t>Attributes to be signed are identified using the IDMEFv2 path syntax defined in
                    Section 3.3.12 of the draft.</t>
          <table>
                    <thead>
                            <tr>
                                <th>
                                    <t>Attribute type</t>
                                </th>
                                <th>
                                    <t>Example</t>
                                </th>
                            </tr>
                        </thead><tbody>
                            <tr>
                                <td>
                                    <t>Top-level attribute</t>
                                </td>
                                <td>
                                    <t/>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <t>Nested class attribute</t>
                                </td>
                                <td>
                                    <t/>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <t>List attribute (first element)</t>
                                </td>
                                <td>
                                    <t> (index 0 implied)</t>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <t>List attribute (specific index)</t>
                                </td>
                                <td>
                                    <t/>
                                </td>
                            </tr>
                        </tbody>
                </table>
        </section>
        <section anchor="payload-structure-normative">
          <name>Payload Structure (Normative)</name>
          <t>The signed payload <strong>MUST</strong> be a <strong>JSON object</strong> whose structure mirrors the
                    nesting of the paths listed in . Specifically:</t>
          <ul>
                    <li>
                        <t>a top-level path  produces a key  at the root;</t>
                    </li>
                    <li>
                        <t>a nested path  produces an object  containing a key ;</t>
                    </li>
                    <li>
                        <t>a list path  (or  with an implied index 0) produces an
                            <strong>array</strong> under the key , whose element at index 0 is an object
                            containing the key ;</t>
                    </li>
                    <li>
                        <t>list indices <strong>MUST</strong> be contiguous starting from 0 in the payload;
                            unreferenced positions <strong>MUST NOT</strong> be included;</t>
                    </li>
                    <li>
                        <t> <strong>MUST</strong> be included in the payload under the key
                            , with the list of paths as provided (see
                            <xref target="constraints-on-signedattributes">Constraints on SignedAttributes</xref>);</t>
                    </li>
                    <li>
                        <t> <strong>MUST NOT</strong> be included in the payload.</t>
                    </li>
                </ul>
          <t><strong>Example.</strong> For , the payload is:</t>
          <sourcecode type="json">{
  "Version": "2.D.V08",
  "ID": "123e4567-e89b-12d3-a456-426614174000",
  "Analyzer": { "Name": "Corporate EDR" },
  "Source": [ { "IP": "198.51.100.20" } ],
  "SignedAttributes": ["Version", "ID", "Analyzer.Name", "Source(0).IP"]
}</sourcecode>
        </section>
        <section anchor="absent-or-invalid-attributes">
          <name>Absent or Invalid Attributes</name>
          <t>If a path listed in  does not correspond to any attribute
                    present in the alert, the producer <strong>MUST</strong> reject the signing operation
                    (validation error). A verifier that observes the absence of a referenced
                    attribute <strong>MUST</strong> reject the signature.</t>
        </section>
        <section anchor="constraints-on-signedattributes">
          <name>Constraints on SignedAttributes</name>
          <ul>
                    <li>
                        <t> <strong>MUST NOT</strong> contain  or
                            .</t>
                    </li>
                    <li>
                        <t>The order of paths in the list is <strong>not significant</strong> (see <xref target="attribute-order-not-significant">Attribute Order:
                                Not Significant</xref>).</t>
                    </li>
                    <li>
                        <t>The list <strong>MUST</strong> be included in the payload to bind the signature to the
                            covered set of paths.</t>
                    </li>
                </ul>
        </section>
      </section>
      <section>
        <name>Attributes Added to the Alert Class</name>
        <table>
                <thead>
                        <tr>
                            <th>
                                <t>Attribute</t>
                            </th>
                            <th>
                                <t>Type</t>
                            </th>
                            <th>
                                <t>Description</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t/>
                            </td>
                            <td>
                                <t/>
                            </td>
                            <td>
                                <t>List of IDMEFv2 paths of the attributes included in the signature.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t/>
                            </td>
                            <td>
                                <t/>
                            </td>
                            <td>
                                <t>JWS Compact Serialization string containing the signature.</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
        <section>
          <name>SignedAttributes</name>
          <t>Optional. <strong>MUST</strong> be present when  is present. <strong>MUST</strong> be
                    included in the JWS payload (see <xref target="payload-structure-normative">Payload Structure (Normative)</xref>).</t>
        </section>
        <section>
          <name>Signature</name>
          <t>Optional. Present only when the alert is signed. Contains the complete JWS
                    Compact Serialization.</t>
        </section>
        <section anchor="consistency">
          <name>Consistency</name>
          <t>An alert that contains  without , or vice
                    versa, <strong>MUST</strong> be considered invalid by a verifier.</t>
        </section>
      </section>
      <section anchor="attribute-order-not-significant">
        <name>Attribute Order: Not Significant</name>
        <t>The order of attributes in  does not affect the signature
                because:</t>
        <ol type="%d.">
                <li>
                    <t>the payload is canonicalized using JCS (RFC 8785);</t>
                </li>
                <li>
                    <t>JCS deterministically sorts all keys in lexicographic order;</t>
                </li>
                <li>
                    <t>the same logical object therefore always produces the same canonical
                        representation.</t>
                    <t>Note: The  array in the payload preserves the order of the specified
                        indices; JCS does not reorder array elements.</t>
                </li>
            </ol>
      </section>
      <section>
        <name>Normalization: JSON Canonicalization Scheme (JCS)</name>
        <t>All JSON objects used as the JWS payload <strong>MUST</strong> be canonicalized using JCS
                (RFC 8785) before signing and before verification.</t>
        <section>
          <name>JCS Rules</name>
          <ul>
                    <li>
                        <t>object keys are sorted lexicographically;</t>
                    </li>
                    <li>
                        <t>whitespace outside string literals is removed;</t>
                    </li>
                    <li>
                        <t>numbers are formatted according to I-JSON rules (RFC 7493);</t>
                    </li>
                    <li>
                        <t>,  and  are forbidden.</t>
                    </li>
                </ul>
        </section>
        <section>
          <name>Rationale</name>
          <t>Without canonicalization, the same logical JSON object could be represented
                    differently (key ordering, whitespace), leading to signature verification
                    failures. JCS ensures deterministic serialization.</t>
        </section>
      </section>
      <section>
        <name>Signature Algorithms</name>
        <section anchor="supported-algorithms">
          <name>Supported Algorithms</name>
          <t>The following algorithms <strong>MUST</strong> be supported:</t>
          <table>
                    <thead>
                            <tr>
                                <th>
                                    <t>Algorithm</t>
                                </th>
                                <th>
                                    <t>Type</t>
                                </th>
                                <th>
                                    <t>Usage</t>
                                </th>
                            </tr>
                        </thead><tbody>
                            <tr>
                                <td>
                                    <t/>
                                </td>
                                <td>
                                    <t>ECDSA P-256 / SHA-256</t>
                                </td>
                                <td>
                                    <t>RECOMMENDED</t>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <t/>
                                </td>
                                <td>
                                    <t>RSASSA-PSS / SHA-256</t>
                                </td>
                                <td>
                                    <t>RECOMMENDED</t>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <t> (Ed25519)</t>
                                </td>
                                <td>
                                    <t>EdDSA curve 25519</t>
                                </td>
                                <td>
                                    <t>RECOMMENDED</t>
                                </td>
                            </tr>
                            <tr>
                                <td>
                                    <t/>
                                </td>
                                <td>
                                    <t>RSA PKCS#1 v1.5 / SHA-256</t>
                                </td>
                                <td>
                                    <t>IF NECESSARY</t>
                                </td>
                            </tr>
                        </tbody>
                </table>
        </section>
        <section>
          <name>Excluded Algorithms</name>
          <t>The following algorithms <strong>MUST NOT</strong> be used:</t>
          <ul>
                    <li>
                        <t> (unsecured);</t>
                    </li>
                    <li>
                        <t>, ,  (HMAC — inappropriate for third-party
                            verification);</t>
                    </li>
                    <li>
                        <t>any algorithm not listed in JWA (RFC 7518).</t>
                    </li>
                </ul>
        </section>
        <section anchor="verification-policy">
          <name>Verification Policy</name>
          <t>A verifier <strong>MUST</strong> check that the  value of the protected header
                    corresponds to an algorithm allowed by its local policy, and <strong>MUST</strong> reject
                    the signature otherwise (protection against algorithm confusion).</t>
        </section>
      </section>
      <section anchor="key-management">
        <name>Key Management</name>
        <section>
          <name>Key Identification</name>
          <t><strong>``alg`` parameter.</strong> <strong>MUST</strong> be included in the protected JWS header. It
                    identifies the cryptographic algorithm used to secure the JWS. The signature is
                    not valid if  does not represent a supported algorithm, or if no key
                    associated with the signing party is available for that algorithm. The value
                    <strong>MUST</strong> be a case-sensitive string containing a registered algorithm name
                    (from the IANA "JSON Web Signature and Encryption Algorithms" registry as
                    defined in JWA) or a value that contains a Collision-Resistant Name.</t>
          <t><strong>``kid`` parameter.</strong> <strong>SHOULD</strong> be included in the protected JWS header. It
                    provides a hint indicating which key was used to secure the JWS, allowing the
                    recipient to locate the verification key and facilitating key rotation. Other
                    identification mechanisms (out-of-band agreement) <strong>MAY</strong> be used, which is why
                    this parameter remains optional.</t>
          <t>Example header:</t>
          <sourcecode type="json">{ "alg": "ES256", "kid": "key-2025-01" }</sourcecode>
        </section>
        <section>
          <name>Key Representation</name>
          <t>Keys <strong>SHOULD</strong> be represented in JWK format (RFC 7517) when exchanged as part
                    of the payload. Other mechanisms, such as referencing a key via a 
                    understood within a pre-existing PKI, <strong>MAY</strong> be used to maintain compatibility
                    with existing infrastructures.</t>
        </section>
        <section>
          <name>Key Distribution</name>
          <t>The key distribution mechanism is outside the scope of this annex. The
                    following methods <strong>MAY</strong> be used: pre-shared public keys, PKI / X.509
                    certificates, OAuth 2.0 or OpenID Connect metadata endpoints, manual exchange.</t>
        </section>
      </section>
      <section anchor="verification-procedure">
        <name>Verification Procedure</name>
        <t>A verifier <strong>MUST</strong> apply the following steps:</t>
        <ol type="%d.">
                <li>
                    <t>check for the joint presence of  and 
                        (<xref target="consistency">Consistency</xref>); reject otherwise;</t>
                </li>
                <li>
                    <t>decode the JWS Compact serialization and check that it has exactly three
                        segments;</t>
                </li>
                <li>
                    <t>check that the protected header contains  and that its value is
                        allowed by the local policy (<xref target="verification-policy">Verification Policy</xref>); reject otherwise;</t>
                </li>
                <li>
                    <t>locate the verification key using  or another mechanism
                        (<xref target="key-management">Key Management</xref>);</t>
                </li>
                <li>
                    <t>rebuild the payload object from the alert and  as
                        defined in <xref target="payload-structure-normative">Payload Structure (Normative)</xref>; if a referenced attribute is
                        absent, reject (<xref target="absent-or-invalid-attributes">Absent or Invalid Attributes</xref>);</t>
                </li>
                <li>
                    <t>canonicalize this object with JCS and compare the result with the decoded
                        payload; reject on any difference;</t>
                </li>
                <li>
                    <t>verify the cryptographic signature using the identified key and algorithm;
                        reject on failure;</t>
                </li>
                <li>
                    <t>on success, consider as intact and authentic only the attributes listed in
                        .</t>
                    <t>Note: An alert whose  and  have been removed
                        becomes an unsigned alert. Recipients <strong>SHOULD</strong> apply an explicit policy
                        (rejection or marking) to unsigned alerts when a signature is expected.</t>
                </li>
            </ol>
      </section>
      <section>
        <name>Security Considerations</name>
        <section>
          <name>Key Protection</name>
          <t>Private keys <strong>MUST</strong> be protected against unauthorized access. Implementations
                    <strong>SHOULD</strong> use hardware security modules (HSM) or secure enclaves for key
                    storage.</t>
        </section>
        <section>
          <name>Algorithm Agility</name>
          <t>To ensure the long-term security of IDMEFv2 alerts, implementations <strong>SHOULD</strong>
                    support algorithm agility, allowing migration to newer algorithms as
                    cryptographic best practices evolve. As post-quantum signature algorithms (for
                    example ML-DSA, SLH-DSA) are standardized and become widely available, they
                    <strong>MAY</strong> be used in place of, or in combination with, classical algorithms (for
                    example via hybrid signatures). The  parameter facilitates this
                    transition by enabling different key types to be identified without changing
                    the IDMEFv2 data model.</t>
        </section>
        <section>
          <name>Replay Attacks</name>
          <t>JWS does not inherently prevent replay attacks. Implementations <strong>SHOULD</strong>
                    include time-based attributes among the signed attributes (for example
                    ) and/or rely on transport-layer security. The use of JWT-like
                    / claims is <strong>outside the scope</strong> of the IDMEFv2 model and
                    <strong>MUST NOT</strong> be assumed by a generic verifier.</t>
        </section>
        <section>
          <name>Key Rotation</name>
          <t>Regular key rotation <strong>SHOULD</strong> be implemented. The  parameter
                    facilitates it by allowing the recipient to identify the key used.</t>
        </section>
      </section>
      <section>
        <name>Complete Example</name>
        <sourcecode type="json">{
  "Version": "2.D.V08",
  "ID": "123e4567-e89b-12d3-a456-426614174000",
  "CreateTime": "2024-05-21T14:30:00Z",
  "Type": "Cyber",
  "Category": "Access.Compromise",
  "Confidence": 0.95,
  "Analyzer": {
    "ID": "analyzer01",
    "Name": "Corporate EDR",
    "IP": "192.0.2.10"
  },
  "Source": [ { "IP": "198.51.100.20" } ],
  "SignedAttributes": [
    "Version", "ID", "CreateTime", "Type", "Category",
    "Analyzer.ID", "Analyzer.Name", "Source(0).IP"
  ],
  "Signature": "&lt;valid JWS Compact string&gt;"
}</sourcecode>
        <t>The corresponding canonicalized payload (before base64url encoding) is:</t>
        <sourcecode type="json">{"Analyzer":{"ID":"analyzer01","Name":"Corporate EDR"},"Category":"Access.Compromise","CreateTime":"2024-05-21T14:30:00Z","ID":"123e4567-e89b-12d3-a456-426614174000","SignedAttributes":["Version","ID","CreateTime","Type","Category","Analyzer.ID","Analyzer.Name","Source(0).IP"],"Source":[{"IP":"198.51.100.20"}],"Type":"Cyber","Version":"2.D.V08"}


Note: ``Confidence`` and ``Analyzer.IP`` do not appear in the payload because they
are not listed in ``SignedAttributes``. Signed and verifiable test vectors
**MUST** accompany the final version.</sourcecode>
      </section>
      <section>
        <name>Conformance and Test Vectors</name>
        <t>An implementation is conformant with this annex if it satisfies all the
                <strong>MUST</strong> and <strong>MUST NOT</strong> requirements above. The final version <strong>MUST</strong>
                provide:</t>
        <ul>
                <li>
                    <t>at least one test vector per supported algorithm (<xref target="supported-algorithms">Supported Algorithms</xref>);</t>
                </li>
                <li>
                    <t>one negative test vector per rejection case (<xref target="absent-or-invalid-attributes">Absent or Invalid Attributes</xref>,
                        <xref target="consistency">Consistency</xref>, <xref target="verification-policy">Verification Policy</xref>, <xref target="verification-procedure">Verification Procedure</xref>);</t>
                </li>
                <li>
                    <t>the expected canonicalized payload and signature values.</t>
                </li>
            </ul>
      </section>
      <section>
        <name>References</name>
        <section>
          <name>Normative References</name>
          <ul>
                    <li>
                        <t>RFC 2119 — Key words for use in RFCs to Indicate Requirement Levels</t>
                    </li>
                    <li>
                        <t>RFC 7515 — JSON Web Signature (JWS)</t>
                    </li>
                    <li>
                        <t>RFC 7517 — JSON Web Key (JWK)</t>
                    </li>
                    <li>
                        <t>RFC 7518 — JSON Web Algorithms (JWA)</t>
                    </li>
                    <li>
                        <t>RFC 7493 — The I-JSON Message Format</t>
                    </li>
                    <li>
                        <t>RFC 8259 — The JavaScript Object Notation (JSON) Data Interchange Format</t>
                    </li>
                    <li>
                        <t>RFC 8785 — JSON Canonicalization Scheme (JCS)</t>
                    </li>
                    <li>
                        <t>IDMEFv2 Draft — draft-lehmann-idmefv2-08 (Section 3.3.12)</t>
                    </li>
                </ul>
        </section>
        <section>
          <name>Informative References</name>
          <ul>
                    <li>
                        <t>RFC 7519 — JSON Web Token (JWT)</t>
                    </li>
                    <li>
                        <t>RFC 7797 — JSON Web Signature (JWS) Unencoded Payload Option</t>
                    </li>
                </ul>
        </section>
      </section>
    </section>
    <section>
      <name>Enumerations</name>
      <section>
        <name>Entity Sector</name>
        <table anchor="id20"><name>enum_alert_entitysector</name>
                
                <thead>
                        <tr>
                            <th>
                                <t>Rank</t>
                            </th>
                            <th>
                                <t>Keyword</t>
                            </th>
                            <th>
                                <t>Definition</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t>0</t>
                            </td>
                            <td>
                                <t>Undefined</t>
                            </td>
                            <td>
                                <t>Sector undefined</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>1</t>
                            </td>
                            <td>
                                <t>Administration.CentralGovernment</t>
                            </td>
                            <td>
                                <t>Central government ministries and agencies</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>2</t>
                            </td>
                            <td>
                                <t>Administration.Diplomatic</t>
                            </td>
                            <td>
                                <t>Embassies, consulates, and diplomatic missions</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>3</t>
                            </td>
                            <td>
                                <t>Administration.EmergencyServices</t>
                            </td>
                            <td>
                                <t>Police, fire, rescue, and emergency medical services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>4</t>
                            </td>
                            <td>
                                <t>Administration.Judiciary</t>
                            </td>
                            <td>
                                <t>Courts, judicial systems, and correctional facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>5</t>
                            </td>
                            <td>
                                <t>Administration.Local</t>
                            </td>
                            <td>
                                <t>Regional and municipal public services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>6</t>
                            </td>
                            <td>
                                <t>Administration.Other</t>
                            </td>
                            <td>
                                <t>Other public administration entities critical for the continuity of public services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>7</t>
                            </td>
                            <td>
                                <t>Banking.Banking</t>
                            </td>
                            <td>
                                <t>Banking institutions and credit activities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>8</t>
                            </td>
                            <td>
                                <t>Banking.Other</t>
                            </td>
                            <td>
                                <t>Other banking and financial entities critical for the stability of the financial system</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>9</t>
                            </td>
                            <td>
                                <t>Cemeteries.Crematoria</t>
                            </td>
                            <td>
                                <t>Crematoria operations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>10</t>
                            </td>
                            <td>
                                <t>Cemeteries.Public</t>
                            </td>
                            <td>
                                <t>Public cemetery and crematorium facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>11</t>
                            </td>
                            <td>
                                <t>Cemeteries.Other</t>
                            </td>
                            <td>
                                <t>Other cemetery and funeral service entities critical for public health and social continuity</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>12</t>
                            </td>
                            <td>
                                <t>Chemical.Production</t>
                            </td>
                            <td>
                                <t>Production of hazardous and high-consequence chemicals</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>13</t>
                            </td>
                            <td>
                                <t>Chemical.Storage</t>
                            </td>
                            <td>
                                <t>Chemical storage and distribution facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>14</t>
                            </td>
                            <td>
                                <t>Chemical.Other</t>
                            </td>
                            <td>
                                <t>Other chemical sector entities critical for safety and security</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>15</t>
                            </td>
                            <td>
                                <t>Civil.ElectionMonitoring</t>
                            </td>
                            <td>
                                <t>Election observation and monitoring entities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>16</t>
                            </td>
                            <td>
                                <t>Civil.HumanitarianAid</t>
                            </td>
                            <td>
                                <t>Humanitarian aid organizations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>17</t>
                            </td>
                            <td>
                                <t>Civil.NGOs</t>
                            </td>
                            <td>
                                <t>Non-governmental organizations with critical functions</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>18</t>
                            </td>
                            <td>
                                <t>Civil.Other</t>
                            </td>
                            <td>
                                <t>Other civil society entities critical for democratic processes and social stability</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>19</t>
                            </td>
                            <td>
                                <t>Cultural.Archives</t>
                            </td>
                            <td>
                                <t>National and regional archives</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>20</t>
                            </td>
                            <td>
                                <t>Cultural.HistoricalSites</t>
                            </td>
                            <td>
                                <t>Historical monuments and archaeological sites</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>21</t>
                            </td>
                            <td>
                                <t>Cultural.Libraries</t>
                            </td>
                            <td>
                                <t>National and public libraries</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>22</t>
                            </td>
                            <td>
                                <t>Cultural.Museums</t>
                            </td>
                            <td>
                                <t>Museums and exhibition spaces</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>23</t>
                            </td>
                            <td>
                                <t>Cultural.Other</t>
                            </td>
                            <td>
                                <t>Other cultural heritage entities critical for national identity and continuity</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>24</t>
                            </td>
                            <td>
                                <t>Defense.CommandControl</t>
                            </td>
                            <td>
                                <t>Military C4ISR systems (command, control, communications, computers, intelligence, surveillance, reconnaissance)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>25</t>
                            </td>
                            <td>
                                <t>Defense.Cyber</t>
                            </td>
                            <td>
                                <t>Military cyber defense and security operations centers</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>26</t>
                            </td>
                            <td>
                                <t>Defense.IndustrialBase</t>
                            </td>
                            <td>
                                <t>Defense manufacturing, weapons systems, munitions production</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>27</t>
                            </td>
                            <td>
                                <t>Defense.Logistics</t>
                            </td>
                            <td>
                                <t>Military supply chains, fuel depots, ammunition storage</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>28</t>
                            </td>
                            <td>
                                <t>Defense.Installations</t>
                            </td>
                            <td>
                                <t>Military bases, headquarters, and operational facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>29</t>
                            </td>
                            <td>
                                <t>Defense.Research</t>
                            </td>
                            <td>
                                <t>Defense laboratories and R&amp;D facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>30</t>
                            </td>
                            <td>
                                <t>Defense.Other</t>
                            </td>
                            <td>
                                <t>Other defense and military entities critical for national security</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>31</t>
                            </td>
                            <td>
                                <t>Digital.CloudServices</t>
                            </td>
                            <td>
                                <t>Cloud computing and critical digital services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>32</t>
                            </td>
                            <td>
                                <t>Digital.DataCenters</t>
                            </td>
                            <td>
                                <t>Data center hosting and infrastructure services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>33</t>
                            </td>
                            <td>
                                <t>Digital.DigitalProviders</t>
                            </td>
                            <td>
                                <t>Online marketplaces, search engines and social media platforms</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>34</t>
                            </td>
                            <td>
                                <t>Digital.DomainNameSystems</t>
                            </td>
                            <td>
                                <t>DNS service providers and TLD registries</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>35</t>
                            </td>
                            <td>
                                <t>Digital.ICTServiceManagement</t>
                            </td>
                            <td>
                                <t>ICT service management B2B services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>36</t>
                            </td>
                            <td>
                                <t>Digital.SatelliteCommunications</t>
                            </td>
                            <td>
                                <t>Satellite communication networks and ground stations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>37</t>
                            </td>
                            <td>
                                <t>Digital.TelecomNetworks</t>
                            </td>
                            <td>
                                <t>Fixed and mobile telecommunications networks</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>38</t>
                            </td>
                            <td>
                                <t>Digital.UnderseaCables</t>
                            </td>
                            <td>
                                <t>Submarine communications cable infrastructure</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>39</t>
                            </td>
                            <td>
                                <t>Digital.Other</t>
                            </td>
                            <td>
                                <t>Other digital and telecommunications entities critical for the continuity of digital services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>40</t>
                            </td>
                            <td>
                                <t>Education.PrimarySecondary</t>
                            </td>
                            <td>
                                <t>Primary and secondary schools</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>41</t>
                            </td>
                            <td>
                                <t>Education.ResearchSchools</t>
                            </td>
                            <td>
                                <t>Research-focused educational institutions</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>42</t>
                            </td>
                            <td>
                                <t>Education.Universities</t>
                            </td>
                            <td>
                                <t>Universities and higher education institutions</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>43</t>
                            </td>
                            <td>
                                <t>Education.Other</t>
                            </td>
                            <td>
                                <t>Other educational entities critical for societal continuity</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>44</t>
                            </td>
                            <td>
                                <t>Emergency.CivilProtection</t>
                            </td>
                            <td>
                                <t>Civil protection and disaster management agencies</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>45</t>
                            </td>
                            <td>
                                <t>Emergency.Medical</t>
                            </td>
                            <td>
                                <t>Ambulance services and emergency medical response</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>46</t>
                            </td>
                            <td>
                                <t>Emergency.FireAndRescue</t>
                            </td>
                            <td>
                                <t>Firefighting and rescue services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>47</t>
                            </td>
                            <td>
                                <t>Emergency.Police</t>
                            </td>
                            <td>
                                <t>Law enforcement agencies and operations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>48</t>
                            </td>
                            <td>
                                <t>Emergency.Other</t>
                            </td>
                            <td>
                                <t>Other emergency response entities critical for public safety</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>49</t>
                            </td>
                            <td>
                                <t>Energy.DistrictHeating</t>
                            </td>
                            <td>
                                <t>Operation of district heating networks</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>50</t>
                            </td>
                            <td>
                                <t>Energy.Electricity</t>
                            </td>
                            <td>
                                <t>Generation, transmission and distribution of electrical power</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>51</t>
                            </td>
                            <td>
                                <t>Energy.Gas</t>
                            </td>
                            <td>
                                <t>Transport, storage and distribution of natural gas</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>52</t>
                            </td>
                            <td>
                                <t>Energy.Hydrogen</t>
                            </td>
                            <td>
                                <t>Production, transport and storage of hydrogen</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>53</t>
                            </td>
                            <td>
                                <t>Energy.Nuclear</t>
                            </td>
                            <td>
                                <t>Nuclear power generation and fuel cycle facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>54</t>
                            </td>
                            <td>
                                <t>Energy.Oil</t>
                            </td>
                            <td>
                                <t>Refining, transport and storage of petroleum products</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>55</t>
                            </td>
                            <td>
                                <t>Energy.Other</t>
                            </td>
                            <td>
                                <t>Other energy entities critical for the continuity of energy supply</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>56</t>
                            </td>
                            <td>
                                <t>Finance.MarketInfrastructures</t>
                            </td>
                            <td>
                                <t>Stock exchanges and clearing houses</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>57</t>
                            </td>
                            <td>
                                <t>Finance.Insurance</t>
                            </td>
                            <td>
                                <t>Systemically important insurance entities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>58</t>
                            </td>
                            <td>
                                <t>Finance.PaymentSystems</t>
                            </td>
                            <td>
                                <t>Card schemes, transfers and instant payment systems</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>59</t>
                            </td>
                            <td>
                                <t>Finance.Other</t>
                            </td>
                            <td>
                                <t>Other financial entities critical for the stability of the financial system</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>60</t>
                            </td>
                            <td>
                                <t>Food.AgriculturalProduction</t>
                            </td>
                            <td>
                                <t>Strategic agricultural and livestock production</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>61</t>
                            </td>
                            <td>
                                <t>Food.FoodDistribution</t>
                            </td>
                            <td>
                                <t>Retail and logistics for food supply chains</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>62</t>
                            </td>
                            <td>
                                <t>Food.FoodProcessing</t>
                            </td>
                            <td>
                                <t>Industrial food processing and manufacturing</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>63</t>
                            </td>
                            <td>
                                <t>Food.FoodSafety</t>
                            </td>
                            <td>
                                <t>Food safety inspection and control authorities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>64</t>
                            </td>
                            <td>
                                <t>Food.Other</t>
                            </td>
                            <td>
                                <t>Other food sector entities critical for the continuity of the food supply chain</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>65</t>
                            </td>
                            <td>
                                <t>Health.BloodAndTissue</t>
                            </td>
                            <td>
                                <t>Blood banks, tissue banks, and transplantation services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>66</t>
                            </td>
                            <td>
                                <t>Health.HealthcareProviders</t>
                            </td>
                            <td>
                                <t>Hospitals and clinics providing essential care</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>67</t>
                            </td>
                            <td>
                                <t>Health.Laboratories</t>
                            </td>
                            <td>
                                <t>Medical analysis and diagnostic laboratories</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>68</t>
                            </td>
                            <td>
                                <t>Health.MedicalDevices</t>
                            </td>
                            <td>
                                <t>Manufacture and maintenance of critical medical devices</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>69</t>
                            </td>
                            <td>
                                <t>Health.PharmaceuticalSupplyChain</t>
                            </td>
                            <td>
                                <t>Manufacturing, wholesale and distribution of pharmaceuticals</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>70</t>
                            </td>
                            <td>
                                <t>Health.PublicHealth</t>
                            </td>
                            <td>
                                <t>Public health agencies and epidemiological surveillance</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>71</t>
                            </td>
                            <td>
                                <t>Health.Other</t>
                            </td>
                            <td>
                                <t>Other health entities critical for the continuity of healthcare services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>72</t>
                            </td>
                            <td>
                                <t>Logistics.FreightForwarding</t>
                            </td>
                            <td>
                                <t>Freight forwarding and cargo management</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>73</t>
                            </td>
                            <td>
                                <t>Logistics.LastMileDelivery</t>
                            </td>
                            <td>
                                <t>Last-mile delivery services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>74</t>
                            </td>
                            <td>
                                <t>Logistics.ThirdPartyLogistics</t>
                            </td>
                            <td>
                                <t>Third-party logistics providers</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>75</t>
                            </td>
                            <td>
                                <t>Logistics.Warehousing</t>
                            </td>
                            <td>
                                <t>Strategic warehousing and storage facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>76</t>
                            </td>
                            <td>
                                <t>Logistics.Other</t>
                            </td>
                            <td>
                                <t>Other logistics entities critical for supply chain continuity</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>77</t>
                            </td>
                            <td>
                                <t>Manufacturing.Aerospace</t>
                            </td>
                            <td>
                                <t>Aerospace and aviation manufacturing</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>78</t>
                            </td>
                            <td>
                                <t>Manufacturing.Batteries</t>
                            </td>
                            <td>
                                <t>Battery manufacturing and energy storage production</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>79</t>
                            </td>
                            <td>
                                <t>Manufacturing.Chemical</t>
                            </td>
                            <td>
                                <t>Chemical manufacturing and industrial processes</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>80</t>
                            </td>
                            <td>
                                <t>Manufacturing.Electronic</t>
                            </td>
                            <td>
                                <t>Manufacture of computer, electronic and optical products</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>81</t>
                            </td>
                            <td>
                                <t>Manufacturing.Defense</t>
                            </td>
                            <td>
                                <t>Defense manufacturing and strategic military supply chains</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>82</t>
                            </td>
                            <td>
                                <t>Manufacturing.MedicalDevices</t>
                            </td>
                            <td>
                                <t>Manufacture of medical devices and equipment</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>83</t>
                            </td>
                            <td>
                                <t>Manufacturing.MotorVehicles</t>
                            </td>
                            <td>
                                <t>Manufacture of motor vehicles and transport equipment</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>84</t>
                            </td>
                            <td>
                                <t>Manufacturing.Pharmaceutical</t>
                            </td>
                            <td>
                                <t>Pharmaceutical manufacturing and active pharmaceutical ingredients</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>85</t>
                            </td>
                            <td>
                                <t>Manufacturing.Semiconductors</t>
                            </td>
                            <td>
                                <t>Semiconductor fabrication and microelectronics manufacturing</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>86</t>
                            </td>
                            <td>
                                <t>Manufacturing.Strategic</t>
                            </td>
                            <td>
                                <t>Critical manufacturing such as metallurgy and components</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>87</t>
                            </td>
                            <td>
                                <t>Manufacturing.Other</t>
                            </td>
                            <td>
                                <t>Other manufacturing entities critical for industrial resilience and strategic supply chains</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>88</t>
                            </td>
                            <td>
                                <t>Media.Infrastructure</t>
                            </td>
                            <td>
                                <t>Transmitters, towers, and broadcast distribution infrastructure</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>89</t>
                            </td>
                            <td>
                                <t>Media.OnlineMedia</t>
                            </td>
                            <td>
                                <t>Digital news platforms and content providers</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>90</t>
                            </td>
                            <td>
                                <t>Media.Press</t>
                            </td>
                            <td>
                                <t>Newspapers, publishing houses, and press agencies</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>91</t>
                            </td>
                            <td>
                                <t>Media.Radio</t>
                            </td>
                            <td>
                                <t>Radio broadcasting networks and studios</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>92</t>
                            </td>
                            <td>
                                <t>Media.Television</t>
                            </td>
                            <td>
                                <t>Television broadcasting networks and studios</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>93</t>
                            </td>
                            <td>
                                <t>Media.Other</t>
                            </td>
                            <td>
                                <t>Other media entities critical for information integrity and public communication</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>94</t>
                            </td>
                            <td>
                                <t>Mining.CriticalRawMaterials</t>
                            </td>
                            <td>
                                <t>Extraction and processing of critical raw materials</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>95</t>
                            </td>
                            <td>
                                <t>Mining.EnergyMinerals</t>
                            </td>
                            <td>
                                <t>Coal, uranium, and other energy mineral mining</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>96</t>
                            </td>
                            <td>
                                <t>Mining.Other</t>
                            </td>
                            <td>
                                <t>Other mining entities critical for resource security</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>97</t>
                            </td>
                            <td>
                                <t>Nuclear.FuelCycle</t>
                            </td>
                            <td>
                                <t>Nuclear fuel production, enrichment, reprocessing, and waste management</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>98</t>
                            </td>
                            <td>
                                <t>Nuclear.Medical</t>
                            </td>
                            <td>
                                <t>Nuclear medical facilities and radioisotope production</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>99</t>
                            </td>
                            <td>
                                <t>Nuclear.PowerGeneration</t>
                            </td>
                            <td>
                                <t>Civil nuclear power plants and associated facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>100</t>
                            </td>
                            <td>
                                <t>Nuclear.Research</t>
                            </td>
                            <td>
                                <t>Nuclear research reactors and laboratories</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>101</t>
                            </td>
                            <td>
                                <t>Nuclear.Other</t>
                            </td>
                            <td>
                                <t>Other nuclear entities critical for safety and security</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>102</t>
                            </td>
                            <td>
                                <t>Postal.CourierServices</t>
                            </td>
                            <td>
                                <t>Postal and courier services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>103</t>
                            </td>
                            <td>
                                <t>Postal.Other</t>
                            </td>
                            <td>
                                <t>Other postal and courier entities critical for the continuity of mail and parcel services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>104</t>
                            </td>
                            <td>
                                <t>Religious.PilgrimageSites</t>
                            </td>
                            <td>
                                <t>Major pilgrimage destinations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>105</t>
                            </td>
                            <td>
                                <t>Religious.PlacesOfWorship</t>
                            </td>
                            <td>
                                <t>Churches, mosques, synagogues, temples, and other religious buildings</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>106</t>
                            </td>
                            <td>
                                <t>Religious.Other</t>
                            </td>
                            <td>
                                <t>Other religious sites critical for community continuity</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>107</t>
                            </td>
                            <td>
                                <t>Research.BiologicalSafety</t>
                            </td>
                            <td>
                                <t>BSL-3 and BSL-4 high-containment laboratories</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>108</t>
                            </td>
                            <td>
                                <t>Research.ChemicalSafety</t>
                            </td>
                            <td>
                                <t>High-containment chemical research facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>109</t>
                            </td>
                            <td>
                                <t>Research.Research</t>
                            </td>
                            <td>
                                <t>Key research laboratories with strategic importance</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>110</t>
                            </td>
                            <td>
                                <t>Research.Other</t>
                            </td>
                            <td>
                                <t>Other research entities critical for strategic research continuity and innovation</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>111</t>
                            </td>
                            <td>
                                <t>Space.GroundStations</t>
                            </td>
                            <td>
                                <t>Satellite ground control and telemetry stations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>112</t>
                            </td>
                            <td>
                                <t>Space.LaunchFacilities</t>
                            </td>
                            <td>
                                <t>Space launch sites and associated infrastructure</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>113</t>
                            </td>
                            <td>
                                <t>Space.SpaceActivities</t>
                            </td>
                            <td>
                                <t>Space industry and satellite operations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>114</t>
                            </td>
                            <td>
                                <t>Space.Other</t>
                            </td>
                            <td>
                                <t>Other space entities critical for the continuity of space-based services and infrastructure</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>115</t>
                            </td>
                            <td>
                                <t>Transport.Aviation</t>
                            </td>
                            <td>
                                <t>Airports, air traffic control and airline operations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>116</t>
                            </td>
                            <td>
                                <t>Transport.Maritime</t>
                            </td>
                            <td>
                                <t>Ports, terminals and maritime traffic management</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>117</t>
                            </td>
                            <td>
                                <t>Transport.Pipeline</t>
                            </td>
                            <td>
                                <t>Oil, gas, and hydrogen pipeline infrastructure</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>118</t>
                            </td>
                            <td>
                                <t>Transport.PublicTransport</t>
                            </td>
                            <td>
                                <t>Urban and regional public transportation systems</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>119</t>
                            </td>
                            <td>
                                <t>Transport.Rail</t>
                            </td>
                            <td>
                                <t>Railway infrastructure and train operations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>120</t>
                            </td>
                            <td>
                                <t>Transport.Road</t>
                            </td>
                            <td>
                                <t>Traffic management and strategic road logistics</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>121</t>
                            </td>
                            <td>
                                <t>Transport.Other</t>
                            </td>
                            <td>
                                <t>Other transport entities critical for the continuity of passenger and freight mobility</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>122</t>
                            </td>
                            <td>
                                <t>Waste.Hazardous</t>
                            </td>
                            <td>
                                <t>Collection, treatment and disposal of hazardous waste</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>123</t>
                            </td>
                            <td>
                                <t>Waste.NonHazardous</t>
                            </td>
                            <td>
                                <t>Management of non-hazardous solid waste</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>124</t>
                            </td>
                            <td>
                                <t>Waste.Nuclear</t>
                            </td>
                            <td>
                                <t>Nuclear waste management and storage facilities</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>125</t>
                            </td>
                            <td>
                                <t>Waste.Recycling</t>
                            </td>
                            <td>
                                <t>Waste processing and recycling operations</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>126</t>
                            </td>
                            <td>
                                <t>Waste.Other</t>
                            </td>
                            <td>
                                <t>Other waste management entities critical for the continuity of waste services</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>127</t>
                            </td>
                            <td>
                                <t>Water.DamsAndReservoirs</t>
                            </td>
                            <td>
                                <t>Dam and reservoir infrastructure for water management</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>128</t>
                            </td>
                            <td>
                                <t>Water.DrinkingWater</t>
                            </td>
                            <td>
                                <t>Capture, treatment and distribution of potable water</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>129</t>
                            </td>
                            <td>
                                <t>Water.Irrigation</t>
                            </td>
                            <td>
                                <t>Large-scale agricultural irrigation systems</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>130</t>
                            </td>
                            <td>
                                <t>Water.Wastewater</t>
                            </td>
                            <td>
                                <t>Collection and treatment of sewage and wastewater</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>131</t>
                            </td>
                            <td>
                                <t>Water.Other</t>
                            </td>
                            <td>
                                <t>Other water entities critical for the continuity of water supply and sanitation</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
      </section>
      <section>
        <name>Alert Category</name>
        <table anchor="id21"><name>enum_alert_category</name>
                
                <thead>
                        <tr>
                            <th>
                                <t>Rank</t>
                            </th>
                            <th>
                                <t>Keyword</t>
                            </th>
                            <th>
                                <t>Description</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t>0</t>
                            </td>
                            <td>
                                <t>Abuse.Coercion</t>
                            </td>
                            <td>
                                <t>The practice of compelling an individual to act against their will by using force, threats, intimidation, or extreme dependency, often for personal or financial gain. Examples: an insider forced by a third party to disclose credentials, a person pressured into handing over access badges.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>1</t>
                            </td>
                            <td>
                                <t>Abuse.Extremism</t>
                            </td>
                            <td>
                                <t>The process of socializing an individual, often through psychological manipulation, to adopt the beliefs and goals of a violent extremist group and become willing to engage in activities that support the group. Examples: online radicalization through extremist forums, recruitment within a closed community.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>2</t>
                            </td>
                            <td>
                                <t>Abuse.Grooming</t>
                            </td>
                            <td>
                                <t>The deliberate process of building an emotional connection and trust with a person to lower their inhibitions and defenses, in order to psychologically manipulate them for purposes such as sexual abuse, exploitation, trafficking, financial fraud, organizational coercion, or illicit insider activity. Ex: an adult building trust with a minor via a gaming platform, with repeated "friendly" contacts near a school; or a colleague cultivating a relationship of dependency to draw someone into fraud or insider dealing.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>3</t>
                            </td>
                            <td>
                                <t>Abuse.Harassment</t>
                            </td>
                            <td>
                                <t>A pattern of unwanted, intrusive behaviour (physical, verbal, or online) directed at a specific person that causes fear, distress, or emotional harm, or any such behaviour—including a single severe incident—that creates a hostile or intimidating environment. Ex: sustained threatening messages on social media, repeated following of an employee, or a one-off serious act of intimidation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>4</t>
                            </td>
                            <td>
                                <t>Abuse.Trafficking</t>
                            </td>
                            <td>
                                <t>The act of recruiting, transporting, transferring, harbouring, or receiving a person through force, fraud, or coercion for the purpose of exploitation, such as forced labour or sexual servitude. Ex: recruitment via fake job ads for forced online scams, transport of victims across a border.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>5</t>
                            </td>
                            <td>
                                <t>Abuse.Other</t>
                            </td>
                            <td>
                                <t>Any other incident involving manipulation or coercion of people for harmful purposes that does not fit into the specific abuse subcategories. Examples: psychological domination of a remote worker, confinement of a person.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>6</t>
                            </td>
                            <td>
                                <t>Access.Authorized</t>
                            </td>
                            <td>
                                <t>An incident involving legitimate, approved physical or digital access to resources that may be relevant for auditing, monitoring, or establishing a baseline of normal activity. Examples: an admin login during a maintenance window, an employee entering a server room with a valid badge, a packet accepted through a firewall.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>7</t>
                            </td>
                            <td>
                                <t>Access.Backdoor</t>
                            </td>
                            <td>
                                <t>The installation or discovery of a concealed method of bypassing normal authentication or encryption in a computer system, product, embedded device or a building. Examples: a hidden SSH key installed on a server, a concealed door in a facility.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>8</t>
                            </td>
                            <td>
                                <t>Access.Cloned</t>
                            </td>
                            <td>
                                <t>The act of creating an unauthorized copy of a physical or digital security credential, such as an access card, to gain illicit entry to a facility or system. Examples: a duplicated RFID badge, a copied key to a locked cabinet.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>9</t>
                            </td>
                            <td>
                                <t>Access.Compromise</t>
                            </td>
                            <td>
                                <t>An incident where a legitimate user's credentials (e.g., username/password, session tokens, API keys, SSH keys and biometric spoofing) are stolen or guessed and used by an unauthorized individual to gain access to systems or data. Examples: stolen VPN credentials reused by an attacker, a stolen badge used to enter a building.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>10</t>
                            </td>
                            <td>
                                <t>Access.Escalation</t>
                            </td>
                            <td>
                                <t>An incident where a user or process gains access rights, permissions, or capabilities that exceed those normally assigned, often to bypass security restrictions. Examples: privilege escalation to domain admin, a visitor reaching a restricted floor.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>11</t>
                            </td>
                            <td>
                                <t>Access.Expired</t>
                            </td>
                            <td>
                                <t>An event indicating that an access attempt was made using credentials, tokens, or a badge whose validity period has ended. The incident may be benign (an oversight) or malicious (deliberate reuse of expired credentials to bypass controls). Examples ): a session token past its expiration is accepted by an application due to a validation flaw, granting continued access , an individual enters a protected area using an access badge whose authorization expired after their training lapsed .</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>12</t>
                            </td>
                            <td>
                                <t>Access.Forced</t>
                            </td>
                            <td>
                                <t>An incident involving the use of physical force to breach a barrier (e.g., lock, door, window) or the repeated systematic guessing of passwords to gain unauthorized access (brute-force attack). Examples: a brute-force attack on an SSH service, forced entry through a window.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>13</t>
                            </td>
                            <td>
                                <t>Access.Lost</t>
                            </td>
                            <td>
                                <t>An incident where physical or digital access credentials (e.g., keys, ID badges, login details) are misplaced, stolen, or used by an unauthorized person. Examples: a lost hardware token, a misplaced key ring.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>14</t>
                            </td>
                            <td>
                                <t>Access.Tailgating</t>
                            </td>
                            <td>
                                <t>A security breach where an unauthorized person follows an authorized individual through a secured entry point, circumventing access control mechanisms. Examples: following an employee through a badge door, session hijacking after an authenticated user.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>15</t>
                            </td>
                            <td>
                                <t>Access.Unauthorized</t>
                            </td>
                            <td>
                                <t>Incident involving unauthorized access to a restricted building, room, area, system, network, application, account, or data resource, whether actual or attempted. Examples: a connection to a database without rights, entry into a restricted area, packet denied by a firewall.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>16</t>
                            </td>
                            <td>
                                <t>Access.Other</t>
                            </td>
                            <td>
                                <t>Any other incident related to physical or digital access that does not fit into the specific access subcategories. Examples: access via an undocumented API, entry through an unmonitored gate.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>17</t>
                            </td>
                            <td>
                                <t>Anomaly.Burst</t>
                            </td>
                            <td>
                                <t>A sudden, abrupt, high-amplitude deviation over a short window, whether or not followed by a return to normal. Examples: a sudden spike in connections or requests, a panic movement in a crowd, a sudden gust or storm, a pollution peak.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>18</t>
                            </td>
                            <td>
                                <t>Anomaly.Chaos</t>
                            </td>
                            <td>
                                <t>A disordered, unpredictable behavior with high entropy, showing no identifiable pattern or stable structure. Examples: erratic network traffic, chaotic crowd movement, atmospheric turbulence, uncontrolled spread of a wildfire.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>19</t>
                            </td>
                            <td>
                                <t>Anomaly.Context</t>
                            </td>
                            <td>
                                <t>A behavior that is normal in absolute terms but abnormal in its context (location, role, time, system state, threat level). Examples: an admin logging in from an unusual country, a vehicle on a forbidden lane, ordinary activity during a crisis, a normal crowd in a place where it is not expected.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>20</t>
                            </td>
                            <td>
                                <t>Anomaly.Correlation</t>
                            </td>
                            <td>
                                <t>An unusual covariation between several entities, signals, or domains that should not evolve together, or the breaking of a normally expected correlation. Examples: correlation between VPN access and physical access, between weather and incidents, between network flows and crowd behavior; or conversely, a sensor losing its expected correlation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>21</t>
                            </td>
                            <td>
                                <t>Anomaly.Deviation</t>
                            </td>
                            <td>
                                <t>Any measurable deviation from an established behavior, baseline, or norm, without presupposing its temporal shape or amplitude. This is the generic subcategory, to be used when no other applies. Examples: a user account logging in from an unusual location, a crowd whose density exceeds the normal range, an out-of-season temperature.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>22</t>
                            </td>
                            <td>
                                <t>Anomaly.Drift</t>
                            </td>
                            <td>
                                <t>A slow, gradual, and almost imperceptible deviation that settles over time and only becomes visible when comparing distant time windows. Examples: slow drift of an account's privileges, gradual erosion of an infrastructure, progressive warming, slow change in crowd or traffic composition.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>23</t>
                            </td>
                            <td>
                                <t>Anomaly.Oscillation</t>
                            </td>
                            <td>
                                <t>A repeated alternation between two or more states, without convergence or stabilisation, over a given window. Examples: flapping of a service, back-and-forth movement of a crowd, sensor oscillation, alternating weather conditions.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>24</t>
                            </td>
                            <td>
                                <t>Anomaly.Relation</t>
                            </td>
                            <td>
                                <t>A deviation affecting the set, structure, or topology of relations between an asset and other assets, rather than the asset's own value, timing, or sequence. Examples: a workstation that normally connects to a stable set of servers suddenly connects to a new one; an asset whose movement pattern shifts to an entirely new set of locations.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>25</t>
                            </td>
                            <td>
                                <t>Anomaly.Sequence</t>
                            </td>
                            <td>
                                <t>An anomaly affecting the order, succession, or cadence of normally expected events, rather than their value. Examples: process steps reversed or skipped, unusual movement order in a crowd, atypical weather sequence (frost then out-of-season heatwave).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>26</t>
                            </td>
                            <td>
                                <t>Anomaly.Threshold</t>
                            </td>
                            <td>
                                <t>Crossing a predefined threshold by a simple, non-statistical rule, without baseline analysis. Examples: a temperature threshold, a crowd density threshold, a connection attempt threshold, a network throughput threshold.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>27</t>
                            </td>
                            <td>
                                <t>Anomaly.Timing</t>
                            </td>
                            <td>
                                <t>An anomaly affecting the moment when an event occurs, normal in itself but happening at an unusual time. Examples: a login at an atypical hour, a crowd arriving too early or too late, out-of-season rain, activity outside expected hours.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>28</t>
                            </td>
                            <td>
                                <t>Anomaly.Unknown</t>
                            </td>
                            <td>
                                <t>An anomaly that has been detected but cannot be classified into the subcategories above, or whose nature remains undetermined after analysis. Examples: an unclassified deviation flagged by a detection system, an anomaly whose cause is still under investigation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>29</t>
                            </td>
                            <td>
                                <t>Anomaly.Other</t>
                            </td>
                            <td>
                                <t>Any other anomaly that does not fit into the specific subcategories. Examples: a deviation that combines several anomaly types without a dominant one.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>30</t>
                            </td>
                            <td>
                                <t>Availability.DDoS</t>
                            </td>
                            <td>
                                <t>An incident where multiple compromised systems (botnet), assets or individuals are used to target a single system with a flood of traffic, causing a denial of service. Examples: a botnet flooding a web service, saturation of a phone exchange.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>31</t>
                            </td>
                            <td>
                                <t>Availability.DoS</t>
                            </td>
                            <td>
                                <t>An incident where a single machine or network attempts to make a system, service, or network resource unavailable by overwhelming it with malicious requests or traffic. Examples: a single-host SYN flood, jamming of a radio channel.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>32</t>
                            </td>
                            <td>
                                <t>Availability.Failure</t>
                            </td>
                            <td>
                                <t>An incident caused by the unintentional malfunction of hardware or software due to errors, bugs, wear and tear, or other faults, leading to service degradation or unavailability. Examples: a disk failure taking down a database, a pump failure stopping water supply, a car breakdown.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>33</t>
                            </td>
                            <td>
                                <t>Availability.Flapping</t>
                            </td>
                            <td>
                                <t>A pattern of rapid, repeated transitions between operational states (such as up and down) of a system, service, process, or component within a short time window. Examples: a service alternating up and down, an intermittent power relay.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>34</t>
                            </td>
                            <td>
                                <t>Availability.Heartbeat</t>
                            </td>
                            <td>
                                <t>A periodic signal generated by hardware, software or individual to indicate normal operation, often used for monitoring system health, connectivity, or location tracking. Examples: a keep-alive signal from an agent, a periodic beacon from a patrol device.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>35</t>
                            </td>
                            <td>
                                <t>Availability.Misconfiguration</t>
                            </td>
                            <td>
                                <t>An incident where incorrect configuration of systems, software, or networks leads to service disruptions, outages, or security vulnerabilities. Examples: a wrong firewall rule blocking traffic, a mis-set HVAC control.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>36</t>
                            </td>
                            <td>
                                <t>Availability.Outage</t>
                            </td>
                            <td>
                                <t>An incident where essential utilities or services (such as electricity, water, or network connectivity) become unavailable, disrupting normal operations. Examples: a cloud region outage, a power cut in a building, a widespread grid failure after a storm.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>37</t>
                            </td>
                            <td>
                                <t>Availability.Overload</t>
                            </td>
                            <td>
                                <t>An incident where a system or component is subjected to a load beyond its designed capacity, leading to performance degradation or failure, even if the load is not malicious. Examples: CPU saturation on a server, overcapacity of a transport network.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>38</t>
                            </td>
                            <td>
                                <t>Availability.Recovery</t>
                            </td>
                            <td>
                                <t>The return of a system, service, process, or component to normal operation following a failure, overload, outage, or other disruptive condition. Examples: a service back online after an incident, power restored after an outage, water supply restored after a flood.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>39</t>
                            </td>
                            <td>
                                <t>Availability.Restart</t>
                            </td>
                            <td>
                                <t>The planned or unplanned reinitialisation of a system, service, process, or component, involving a stop followed by a start. Examples: a planned server reboot, a restart of a generator.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>40</t>
                            </td>
                            <td>
                                <t>Availability.Start</t>
                            </td>
                            <td>
                                <t>The initialisation or startup of a system, service, process, or component, transitioning from an inactive to an active state. Examples: a service startup after deployment, the start of a pump.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>41</t>
                            </td>
                            <td>
                                <t>Availability.Status</t>
                            </td>
                            <td>
                                <t>A point-in-time report describing the current state, health, or operational metrics of a system, service, or component, typically emitted on demand or at significant transitions. Examples: a health-check report from a node, a status board of a facility, the polling of a normal disk space.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>42</t>
                            </td>
                            <td>
                                <t>Availability.Stop</t>
                            </td>
                            <td>
                                <t>The intentional or unintentional termination of a system, service, process, or component, transitioning from an active to an inactive state. Examples: a service shutdown, the stop of a production line.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>43</t>
                            </td>
                            <td>
                                <t>Availability.Other</t>
                            </td>
                            <td>
                                <t>Any other incident that impacts the availability of resources or services, not covered by the specific subcategories. Examples: a DNS resolution failure, a lift out of service.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>44</t>
                            </td>
                            <td>
                                <t>Biological.Animal</t>
                            </td>
                            <td>
                                <t>An incident where animals pose a direct threat to human safety, public health (e.g., zoonotic diseases), or economic stability (e.g., livestock diseases). Examples: an aggressive dog loose on a site, a zoonotic outbreak from livestock.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>45</t>
                            </td>
                            <td>
                                <t>Biological.Epidemic</t>
                            </td>
                            <td>
                                <t>The rapid and widespread occurrence of an infectious disease in a specific population or region, exceeding what is normally expected. Examples: a regional flu epidemic, a measles outbreak in a community.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>46</t>
                            </td>
                            <td>
                                <t>Biological.Insect</t>
                            </td>
                            <td>
                                <t>An incident involving a harmful outbreak or infestation of insects that threatens public health, agriculture, livestock, or property. Examples: a locust swarm threatening crops, an invasive mosquito infestation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>47</t>
                            </td>
                            <td>
                                <t>Biological.Zombies</t>
                            </td>
                            <td>
                                <t>A fictional or hypothetical scenario involving a pathogen that causes a pandemic of aggressive, infectious behavior, often used as a metaphor for worst-case outbreak scenarios in planning. Examples: a tabletop exercise simulating a zombie pandemic, a worst-case planning scenario for an uncontrolled outbreak.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>48</t>
                            </td>
                            <td>
                                <t>Biological.Other</t>
                            </td>
                            <td>
                                <t>Any other incident caused by biological processes not covered by specific subcategories. Examples: a fungal contamination of a water source, an algal bloom affecting a reservoir.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>49</t>
                            </td>
                            <td>
                                <t>Climate.Drought</t>
                            </td>
                            <td>
                                <t>A prolonged period of below-average precipitation leading to a water shortage, which can impact agriculture, ecosystems, and water supplies. Examples: a multi-year drought affecting a region, a dry spell causing crop failure.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>50</t>
                            </td>
                            <td>
                                <t>Climate.LakeOutburst</t>
                            </td>
                            <td>
                                <t>An incident where a glacial lake dam (often moraine or ice) fails, rapidly releasing a large volume of water and causing devastating floods downstream. Examples: a glacial lake outburst flood in the Alps, a moraine dam breach in the Himalayas.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>51</t>
                            </td>
                            <td>
                                <t>Climate.Wildfire</t>
                            </td>
                            <td>
                                <t>An unplanned and uncontrolled fire burning in natural or rural areas, often exacerbated by climatic conditions like drought, wind, and heat. Examples: a wildfire spreading under heat and wind, a forest fire threatening a settlement.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>52</t>
                            </td>
                            <td>
                                <t>Climate.Other</t>
                            </td>
                            <td>
                                <t>Any other incident caused by long-lived atmospheric processes (climatological) not covered by specific subcategories. Examples: a prolonged heat dome, a large-scale shift in monsoon patterns.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>53</t>
                            </td>
                            <td>
                                <t>Extraterrestrial.Aliens</t>
                            </td>
                            <td>
                                <t>A hypothetical incident involving the discovery of or interaction with extraterrestrial intelligent life, a theoretical scenario in scientific and security planning. Examples: a hypothetical first-contact scenario, a tabletop exercise on extraterrestrial contact.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>54</t>
                            </td>
                            <td>
                                <t>Extraterrestrial.Impact</t>
                            </td>
                            <td>
                                <t>An incident involving a celestial object (asteroid, meteoroid, comet) colliding with Earth, potentially causing localized or global damage. Examples: a meteor airburst over a populated area, an asteroid impact warning.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>55</t>
                            </td>
                            <td>
                                <t>Extraterrestrial.SpaceWeather</t>
                            </td>
                            <td>
                                <t>An event caused by solar or cosmic activity, such as solar flares or geomagnetic storms, that can disrupt Earth's technological infrastructure. Examples: a geomagnetic storm disrupting power grids, satellite link degradation during a solar flare.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>56</t>
                            </td>
                            <td>
                                <t>Extraterrestrial.Other</t>
                            </td>
                            <td>
                                <t>Any other incident caused by extraterrestrial processes not covered by specific subcategories. Examples: a cosmic ray burst affecting electronics, an unusual solar particle event.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>57</t>
                            </td>
                            <td>
                                <t>Fraud.Copyright</t>
                            </td>
                            <td>
                                <t>The act of reproducing, distributing, or installing software, media, or other materials in violation of their copyright, often for personal gain or distribution (piracy). Examples: illegal distribution of licensed software, the sale of pirated media.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>58</t>
                            </td>
                            <td>
                                <t>Fraud.Corruption</t>
                            </td>
                            <td>
                                <t>A fraudulent scheme that is made possible by the abuse of power or position by a trusted individual (e.g., employee, official) who acts for personal gain. Examples: an admin granting rights for a bribe, an official approving a fraudulent permit.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>59</t>
                            </td>
                            <td>
                                <t>Fraud.Espionage</t>
                            </td>
                            <td>
                                <t>The use of illegal or unethical means, such as hacking, bribery, or theft, to acquire a competitor's trade secrets, intellectual property, or other confidential business information. Examples: exfiltration of trade secrets, photographing a prototype.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>60</t>
                            </td>
                            <td>
                                <t>Fraud.Masquerade</t>
                            </td>
                            <td>
                                <t>A type of attack where an attacker illegitimately assumes the identity of another user, process, or system to gain unauthorized access, privileges, or benefits. Examples: an attacker impersonating a service account, a person using someone else's badge.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>61</t>
                            </td>
                            <td>
                                <t>Fraud.Usage</t>
                            </td>
                            <td>
                                <t>The use of an organization's assets (e.g., computing power, network, email) for non-work-related, often illegal, activities without authorization. Examples: mining crypto on corporate servers, personal use of a company vehicle.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>62</t>
                            </td>
                            <td>
                                <t>Fraud.Other</t>
                            </td>
                            <td>
                                <t>Any other incident involving deception for financial or reputational gain that does not fit into the specific fraud subcategories. Examples: a fake refund scheme, a forged signature on a contract.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>63</t>
                            </td>
                            <td>
                                <t>Geophysical.Earthquake</t>
                            </td>
                            <td>
                                <t>An incident caused by a sudden, rapid shaking of the earth resulting from the movement of tectonic plates, which can cause ground shaking, surface rupture, and tsunamis. Examples: a magnitude 6.0 earthquake, an aftershock swarm following a main shock.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>64</t>
                            </td>
                            <td>
                                <t>Geophysical.MassMovement</t>
                            </td>
                            <td>
                                <t>An incident involving the downslope movement of rock, soil, or snow under the force of gravity, such as landslides, avalanches, or rockfalls. Examples: a landslide after saturation, an avalanche blocking a mountain road.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>65</t>
                            </td>
                            <td>
                                <t>Geophysical.Other</t>
                            </td>
                            <td>
                                <t>Any other incident caused by solid-earth processes not covered by specific geophysical subcategories. Examples: a volcanic tremor, ground deformation detected by sensors.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>66</t>
                            </td>
                            <td>
                                <t>Geophysical.Volcanic</t>
                            </td>
                            <td>
                                <t>An incident caused by the eruption of magma and volcanic gases from a volcano, which can produce lava flows, pyroclastic flows, ashfall, and lahars. Examples: ashfall from an eruption, a pyroclastic flow descending a slope.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>67</t>
                            </td>
                            <td>
                                <t>Hydro.Flood</t>
                            </td>
                            <td>
                                <t>An incident where water submerges land that is normally dry, often caused by heavy rain, storm surge, or dam failure, leading to property damage and risk to life. Examples: a river flood after heavy rain, a flash flood in an urban area.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>68</t>
                            </td>
                            <td>
                                <t>Hydro.Landslide</t>
                            </td>
                            <td>
                                <t>An incident involving the downward movement of slope materials (soil, rock) triggered by water saturation from heavy rain or snowmelt. Examples: a rain-triggered slope failure, a mudslide after snowmelt.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>69</t>
                            </td>
                            <td>
                                <t>Hydro.Wave</t>
                            </td>
                            <td>
                                <t>An incident involving destructive waves, such as tsunamis or storm surges, that can cause coastal flooding, erosion, and damage. Examples: a tsunami hitting a coast, a storm surge flooding a seafront.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>70</t>
                            </td>
                            <td>
                                <t>Hydro.Other</t>
                            </td>
                            <td>
                                <t>Any other incident caused by the movement, distribution, and quality of water, not covered by specific hydrological subcategories. Examples: a dam overflow warning, a sudden drop in river water quality.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>71</t>
                            </td>
                            <td>
                                <t>Insider.Malicious</t>
                            </td>
                            <td>
                                <t>A security incident caused by a current or former employee, contractor, or other trusted insider who intentionally acts to harm the organization, its data, or its people. Examples: an employee exfiltrating data, an insider disabling a camera.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>72</t>
                            </td>
                            <td>
                                <t>Insider.Negligent</t>
                            </td>
                            <td>
                                <t>A security incident caused unintentionally by an insider, such as through carelessness, lack of awareness, or simple human error, leading to data exposure or system compromise. Examples: a mis-sent email with PII, leaving a door unlocked.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>73</t>
                            </td>
                            <td>
                                <t>Insider.Other</t>
                            </td>
                            <td>
                                <t>Any other security incident involving an insider (trusted individual) that does not fit into the specific insider threat subcategories. Examples: a contractor using shadow IT, a visitor wandering off from an escorted area.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>74</t>
                            </td>
                            <td>
                                <t>Malware.Adware</t>
                            </td>
                            <td>
                                <t>A type of software that automatically displays or downloads unwanted advertisements, often in a disruptive manner, and may track user behavior. Examples: a browser hijacker showing ads, unwanted pop-ups appearing on a workstation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>75</t>
                            </td>
                            <td>
                                <t>Malware.Backdoor</t>
                            </td>
                            <td>
                                <t>A type of malware that bypasses normal authentication to give an attacker persistent remote access to a compromised system, often enabling data theft or installation of additional malware. Examples: a RAT installed on a workstation, a hidden remote shell on a server.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>76</t>
                            </td>
                            <td>
                                <t>Malware.ResourceHijacking</t>
                            </td>
                            <td>
                                <t>A type of malware or malicious behavior that abuses the resources of a compromised system (CPU, GPU, network bandwidth, cloud services, etc.) for the attacker's benefit without the owner's consent. This includes, but is not limited to, cryptocurrency mining (cryptojacking), proxy bandwidth resale, SMS traffic generation, and email spam abuse. The main impact is degraded performance, reduced availability, and increased operational costs (electricity, cloud billing). Examples: XMRig running on a server, a browser-based miner slowing a workstation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>77</t>
                            </td>
                            <td>
                                <t>Malware.Downloader</t>
                            </td>
                            <td>
                                <t>A type of malware designed to download and install other malicious software from a remote server, typically acting as the first stage in a multi-step attack. Examples: a dropper fetching a payload, a script downloading a second-stage binary.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>78</t>
                            </td>
                            <td>
                                <t>Malware.Ransomware</t>
                            </td>
                            <td>
                                <t>A type of malware that encrypts a victim's files or systems, rendering them inaccessible, and demands a ransom payment, often in cryptocurrency, for the decryption key. Examples: file-encrypting malware on a file server, a ransom note left on a workstation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>79</t>
                            </td>
                            <td>
                                <t>Malware.Rootkit</t>
                            </td>
                            <td>
                                <t>A type of malware designed to hide its presence and grant an attacker persistent, privileged access to a compromised system while evading detection. Examples: a kernel-level rootkit, a bootkit persisting across reboots.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>80</t>
                            </td>
                            <td>
                                <t>Malware.Spyware</t>
                            </td>
                            <td>
                                <t>A type of software that secretly monitors and collects information about a user's activities, such as keystrokes, browsing habits, and personal data, without their consent. Examples: a keylogger on a laptop, a hidden camera implant.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>81</t>
                            </td>
                            <td>
                                <t>Malware.Trojan</t>
                            </td>
                            <td>
                                <t>A type of malware that disguises itself as legitimate or desirable software to trick users into installing it, after which it can perform malicious actions. Examples: a fake installer, a trojanised game download.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>82</t>
                            </td>
                            <td>
                                <t>Malware.Virus</t>
                            </td>
                            <td>
                                <t>A type of malicious software that attaches itself to a legitimate program or file and replicates itself to spread to other programs, often requiring human action to propagate. Examples: a macro virus in a document, an infected executable on a USB stick.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>83</t>
                            </td>
                            <td>
                                <t>Malware.Worm</t>
                            </td>
                            <td>
                                <t>A type of standalone malicious software that replicates itself to spread across networks, often exploiting vulnerabilities without requiring human interaction. Examples: a self-spreading worm on a network, a mass-mailing worm.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>84</t>
                            </td>
                            <td>
                                <t>Malware.Other</t>
                            </td>
                            <td>
                                <t>Any other incident involving malicious software that does not fit into the specific malware subcategories. Examples: fileless malware, a malicious browser extension.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>85</t>
                            </td>
                            <td>
                                <t>Meteo.Cold</t>
                            </td>
                            <td>
                                <t>A meteorological incident involving a rapid fall in temperature over a short period, or a prolonged period of extreme cold, posing risks to health and infrastructure. Examples: a cold wave, a sudden frost damaging crops.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>86</t>
                            </td>
                            <td>
                                <t>Meteo.Fog</t>
                            </td>
                            <td>
                                <t>A meteorological incident where dense fog reduces visibility, potentially disrupting transportation and causing accidents. Examples: dense fog on a motorway, fog grounding flights at an airport.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>87</t>
                            </td>
                            <td>
                                <t>Meteo.Heat</t>
                            </td>
                            <td>
                                <t>A meteorological incident involving a prolonged period of excessively hot weather, which can cause health impacts, infrastructure stress, and environmental damage. Examples: a heatwave, a prolonged period of high night-time temperatures.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>88</t>
                            </td>
                            <td>
                                <t>Meteo.Rain</t>
                            </td>
                            <td>
                                <t>A meteorological incident involving excessive or prolonged rainfall that can lead to flooding, landslides, and transportation disruptions. Examples: prolonged rainfall over a catchment, intense rainfall causing urban flooding.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>89</t>
                            </td>
                            <td>
                                <t>Meteo.Snow</t>
                            </td>
                            <td>
                                <t>A meteorological incident involving heavy snowfall and blizzard conditions, which can disrupt transportation, damage infrastructure, and pose risks to safety. Examples: a blizzard, heavy snow closing a mountain pass.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>90</t>
                            </td>
                            <td>
                                <t>Meteo.Wind</t>
                            </td>
                            <td>
                                <t>A meteorological incident involving damaging or dangerous winds, such as from storms, tornadoes, or hurricanes, that can cause structural damage and power outages. Examples: storm-force winds, a tornado touching down.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>91</t>
                            </td>
                            <td>
                                <t>Meteo.Other</t>
                            </td>
                            <td>
                                <t>Any other incident caused by atmospheric processes not covered by specific meteorological subcategories. Examples: a hail storm, a dust storm reducing visibility.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>92</t>
                            </td>
                            <td>
                                <t>National.Conflict</t>
                            </td>
                            <td>
                                <t>A state of armed conflict between two or more nations, involving organized military forces and impacting national security. Examples: an armed border clash, a state-backed cyber campaign during a war.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>93</t>
                            </td>
                            <td>
                                <t>National.Crime</t>
                            </td>
                            <td>
                                <t>Large-scale illegal activities, such as trafficking in drugs, weapons, or people, conducted by sophisticated criminal networks that pose a threat to national and international security. Examples: a ransomware cartel, drug trafficking across a border.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>94</t>
                            </td>
                            <td>
                                <t>National.Cyber</t>
                            </td>
                            <td>
                                <t>Large-scale cyber operations, including attacks, espionage, and disinformation campaigns, conducted by state-sponsored or state-affiliated groups against national interests. Examples: a state-sponsored APT campaign, a coordinated disinformation operation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>95</t>
                            </td>
                            <td>
                                <t>National.Economic</t>
                            </td>
                            <td>
                                <t>An incident involving significant disruption to a nation's economy, such as market crashes, hyperinflation, or trade wars, affecting national stability. Examples: a market crash, a sudden currency devaluation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>96</t>
                            </td>
                            <td>
                                <t>National.Environmental</t>
                            </td>
                            <td>
                                <t>Incidents related to large-scale environmental shifts, such as climate change, resource scarcity, or global pandemics, that have significant national security implications. Examples: climate-driven migration, a resource scarcity crisis.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>97</t>
                            </td>
                            <td>
                                <t>National.Societal</t>
                            </td>
                            <td>
                                <t>An incident involving large-scale public disorder, such as strikes, riots, or civil unrest, that challenges social order and may require national-level response. Examples: a general strike, widespread riots in a city.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>98</t>
                            </td>
                            <td>
                                <t>National.Terrorism</t>
                            </td>
                            <td>
                                <t>An incident involving the use of violence, intimidation, or threats by non-state actors against civilians or property to achieve political, religious, or ideological objectives. Examples: a bombing in a public place, online radicalization leading to a plot.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>99</t>
                            </td>
                            <td>
                                <t>National.Other</t>
                            </td>
                            <td>
                                <t>Any other incident that has a significant impact at the national scale, not covered by specific national security subcategories. Examples: a national emergency declaration, a large-scale border incident.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>100</t>
                            </td>
                            <td>
                                <t>Operational.Configuration</t>
                            </td>
                            <td>
                                <t>A change, whether intentional or accidental, to the parameters, settings, or behavior of a system, service, or component. Examples: a firewall rule change, switching a valve in a pipeline.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>101</t>
                            </td>
                            <td>
                                <t>Operational.Misuse</t>
                            </td>
                            <td>
                                <t>The use of an organization's assets (e.g., computers, network, time) for purposes that are not officially authorized, which may violate policy but not be malicious. Examples: personal use of a corporate account, personal use of a company vehicle.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>102</t>
                            </td>
                            <td>
                                <t>Operational.PolicyViolation</t>
                            </td>
                            <td>
                                <t>An incident where an individual fails to comply with established organizational policies, procedures, or security rules, whether intentionally or accidentally. Examples: bypassing a security policy, ignoring a safety rule.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>103</t>
                            </td>
                            <td>
                                <t>Operational.ProcessFailure</t>
                            </td>
                            <td>
                                <t>An incident where a designed process, procedure, or workflow fails to achieve its intended outcome, leading to operational or security gaps. Examples: a failed patch rollout, a broken maintenance procedure.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>104</t>
                            </td>
                            <td>
                                <t>Operational.Update</t>
                            </td>
                            <td>
                                <t>The installation, upgrade, or refresh of software, firmware, signatures, definitions, or other content that modifies the functional behavior of a system, service, or component. Examples: a software upgrade, a firmware update on a device.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>105</t>
                            </td>
                            <td>
                                <t>Operational.Other</t>
                            </td>
                            <td>
                                <t>Any other operational issue that does not fit into the specific operational incident subcategories. Examples: a license expiry, a spare part shortage.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>106</t>
                            </td>
                            <td>
                                <t>Recon.Aerial</t>
                            </td>
                            <td>
                                <t>The act of using aerial platforms, such as drones or satellites, to conduct surveillance or gather intelligence about a target area. Examples: a drone overflight, satellite imagery collection over a site.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>107</t>
                            </td>
                            <td>
                                <t>Recon.Landscape</t>
                            </td>
                            <td>
                                <t>The act of physically observing a location to gather information about security measures, layouts, or potential vulnerabilities. Examples: casing a building, observing a facility's entry points.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>108</t>
                            </td>
                            <td>
                                <t>Recon.Network</t>
                            </td>
                            <td>
                                <t>The practice of probing a network to discover active hosts, open ports, and services, often as a precursor to an attack or unauthorized monitoring. Examples: a port scan, a host discovery sweep.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>109</t>
                            </td>
                            <td>
                                <t>Recon.OSINT</t>
                            </td>
                            <td>
                                <t>The practice of collecting and analyzing information from publicly available sources (e.g., social media, public records) for intelligence purposes. Examples: scraping social media, gathering information from public records.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>110</t>
                            </td>
                            <td>
                                <t>Recon.Other</t>
                            </td>
                            <td>
                                <t>Any other incident involving scanning, spying, or monitoring to identify resources that does not fit into specific recon subcategories. Examples: DNS enumeration, monitoring of a target's communications.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>111</t>
                            </td>
                            <td>
                                <t>Sabotage.Data</t>
                            </td>
                            <td>
                                <t>The intentional act of deleting, altering, or corrupting digital or physical data to cause harm, disrupt operations, or cover tracks. Examples: a database wiped, shredded documents.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>112</t>
                            </td>
                            <td>
                                <t>Sabotage.Destruction</t>
                            </td>
                            <td>
                                <t>The intentional and malicious act of destroying or severely damaging physical assets, such as windows, equipment, or buildings. Examples: smashed equipment, a deliberately damaged vehicle.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>113</t>
                            </td>
                            <td>
                                <t>Sabotage.Disruption</t>
                            </td>
                            <td>
                                <t>The intentional disruption of essential services or utilities, such as electricity, water, or network connectivity, to cause operational downtime. Examples: a cut fibre link, a cut power line.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>114</t>
                            </td>
                            <td>
                                <t>Sabotage.Equipment</t>
                            </td>
                            <td>
                                <t>The intentional act of causing damage to operational equipment, machinery, or vehicles, often to disrupt production or operations. Examples: a damaged machine on a production line, a sabotaged vehicle.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>115</t>
                            </td>
                            <td>
                                <t>Sabotage.Graffiti</t>
                            </td>
                            <td>
                                <t>The act of willfully defacing, damaging, or marking public or private property with inscriptions, drawings, or tags without permission. Examples: tags on a wall, graffiti on a train.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>116</t>
                            </td>
                            <td>
                                <t>Sabotage.Tampering</t>
                            </td>
                            <td>
                                <t>The act of deliberately meddling with or disabling security controls (e.g., locks, alarms, cameras) to compromise their effectiveness. Examples: a disabled EDR agent, a disabled camera.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>117</t>
                            </td>
                            <td>
                                <t>Sabotage.Vandalism</t>
                            </td>
                            <td>
                                <t>The deliberate and malicious act of damaging, destroying, or obstructing an organization's physical assets, operations, or systems. Examples: broken windows, damaged signage.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>118</t>
                            </td>
                            <td>
                                <t>Sabotage.Other</t>
                            </td>
                            <td>
                                <t>Any other incident involving the intentional damage to property or assets not covered by the specific sabotage subcategories. Examples: glue in a lock, a blocked ventilation shaft.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>119</t>
                            </td>
                            <td>
                                <t>Safety.Accident</t>
                            </td>
                            <td>
                                <t>An unplanned, unforeseen event (e.g., vehicle crash, industrial mishap, chemical spill) that results in injury, loss of life, or damage to health. Examples: a vehicle crash, a fall from height.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>120</t>
                            </td>
                            <td>
                                <t>Safety.Aggression</t>
                            </td>
                            <td>
                                <t>An incident where an individual uses physical force against another person, causing bodily harm, pain, or the fear of immediate harm. Examples: a physical assault, a violent altercation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>121</t>
                            </td>
                            <td>
                                <t>Safety.Explosion</t>
                            </td>
                            <td>
                                <t>A sudden, violent release of energy (e.g., from gas, chemicals, or explosives) that causes a blast, fire, and potential structural damage, injury, or loss of life. Examples: a gas explosion, a chemical blast.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>122</t>
                            </td>
                            <td>
                                <t>Safety.Fire</t>
                            </td>
                            <td>
                                <t>An incident involving uncontrolled burning (e.g., structural, wildland, or chemical fire) that threatens human safety, property, or the environment. Examples: a data-center fire, a building fire, a wildfire.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>123</t>
                            </td>
                            <td>
                                <t>Safety.Hostage</t>
                            </td>
                            <td>
                                <t>An incident where a person or group is held against their will by a captor, often to compel a third party to meet certain demands. Examples: a hostage-taking in a building, a person held in a vehicle.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>124</t>
                            </td>
                            <td>
                                <t>Safety.Pollution</t>
                            </td>
                            <td>
                                <t>The introduction or abnormal presence of a contaminant (chemical, biological, radioactive, or otherwise hazardous) in the environment — air, water, soil, or built infrastructure — that causes or may cause harm to human health, ecosystems, property, or the operation of facilities and services. The pollution may be acute or chronic, accidental or deliberate, and of local or transboundary extent. Examples: a radioactive release from a nuclear facility, a chemical discharge into a river, an atmospheric pollution peak, soil contamination from an industrial site, a deliberate dumping of hazardous waste.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>125</t>
                            </td>
                            <td>
                                <t>Safety.Sexual</t>
                            </td>
                            <td>
                                <t>An incident involving any unwanted sexual act, contact, or behavior directed against an individual without their consent. Examples: a sexual assault, unwanted sexual contact.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>126</t>
                            </td>
                            <td>
                                <t>Safety.Other</t>
                            </td>
                            <td>
                                <t>Any other incident that causes or has the potential to cause injury, loss of life, or endanger citizens, not covered by specific safety subcategories. Examples: a fall from height, a hazardous material spill.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>127</t>
                            </td>
                            <td>
                                <t>SocialEng.Baiting</t>
                            </td>
                            <td>
                                <t>A social engineering attack that lures victims by offering something desirable (e.g., free music, a prize) in exchange for information or by tricking them into downloading malware. Examples: a USB drop in a car park, a left USB in a lobby.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>128</t>
                            </td>
                            <td>
                                <t>SocialEng.Phishing</t>
                            </td>
                            <td>
                                <t>A social engineering attack where the attacker impersonates a trustworthy entity to trick a victim into revealing sensitive information or performing an action. Examples: a credential-harvesting email, a fake invoice sent by post, a fake login page.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>129</t>
                            </td>
                            <td>
                                <t>SocialEng.Pretexting</t>
                            </td>
                            <td>
                                <t>A social engineering tactic where the attacker creates a fabricated scenario or pretends to be someone they are not to engage a victim and extract information or access. Examples: a fake IT support call, a fake inspector visit.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>130</t>
                            </td>
                            <td>
                                <t>SocialEng.QuidProQuo</t>
                            </td>
                            <td>
                                <t>A social engineering tactic where the attacker offers a service or benefit (e.g., technical support) in exchange for information or access, often expecting something in return later. Examples: a fake software update, a bogus tech support offer.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>131</t>
                            </td>
                            <td>
                                <t>SocialEng.Other</t>
                            </td>
                            <td>
                                <t>Any other incident involving psychological manipulation of people to divulge information or perform actions, not covered by specific social engineering subcategories. Examples: a deepfake voice call, a fake job interview used to extract information.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>132</t>
                            </td>
                            <td>
                                <t>SupplyChain.Compromise</t>
                            </td>
                            <td>
                                <t>A security incident where an attacker exploits a vulnerability in a third-party vendor's system to gain access to or compromise the primary target's network or data. Examples: a compromised software update, a tampered shipment.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>133</t>
                            </td>
                            <td>
                                <t>SupplyChain.Disruption</t>
                            </td>
                            <td>
                                <t>An event that disrupts the normal flow of products, services, or information within a supply chain, often impacting operations and delivery. Examples: a cloud provider outage, a blocked port.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>134</t>
                            </td>
                            <td>
                                <t>SupplyChain.Other</t>
                            </td>
                            <td>
                                <t>Any other incident affecting the supply chain that does not fit into the specific supply chain subcategories. Examples: an expired certificate from a vendor, delayed spare parts.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>135</t>
                            </td>
                            <td>
                                <t>Theft.Data</t>
                            </td>
                            <td>
                                <t>The unauthorized taking or copying of sensitive or confidential documents, whether in physical or digital form. Examples: copied files from a shared drive, stolen paper records.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>136</t>
                            </td>
                            <td>
                                <t>Theft.Equipment</t>
                            </td>
                            <td>
                                <t>The unlawful taking of physical hardware, such as computers, mobile phones, or servers, resulting in loss of assets and potentially the data they contain. Examples: a stolen server, a stolen laptop.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>137</t>
                            </td>
                            <td>
                                <t>Theft.FinInfo</t>
                            </td>
                            <td>
                                <t>The theft of financial information, such as credit card numbers or bank account details, often for the purpose of fraudulent transactions. Examples: card skimming data, a stolen wallet.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>138</t>
                            </td>
                            <td>
                                <t>Theft.IP</t>
                            </td>
                            <td>
                                <t>The unlawful acquisition of a company's intellectual property, including trade secrets, patents, formulas, or proprietary processes. Examples: stolen source code, a stolen blueprint.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>139</t>
                            </td>
                            <td>
                                <t>Theft.Machinery</t>
                            </td>
                            <td>
                                <t>The unlawful taking of heavy equipment, vehicles, or specialized machinery, often resulting in significant operational and financial loss. Examples: a stolen excavator, a stolen delivery truck.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>140</t>
                            </td>
                            <td>
                                <t>Theft.PII</t>
                            </td>
                            <td>
                                <t>The unauthorized acquisition of Personally Identifiable Information (PII) that can be used to identify, contact, or impersonate an individual. Examples: a leaked customer database, stolen HR files.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>141</t>
                            </td>
                            <td>
                                <t>Theft.Other</t>
                            </td>
                            <td>
                                <t>Any other incident involving the intentional stealing of physical property or digital data not covered by specific theft subcategories. Examples: a stolen license key, stolen tools.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>142</t>
                            </td>
                            <td>
                                <t>Other.Uncategorized</t>
                            </td>
                            <td>
                                <t>Any incident that does not fit into one of the predefined categories in this taxonomy. Examples: an unclassifiable alert, an incident whose type does not match any existing category.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>143</t>
                            </td>
                            <td>
                                <t>Other.Undetermined</t>
                            </td>
                            <td>
                                <t>An incident whose category is currently unknown, under investigation, or cannot be determined. Examples: an alert under investigation, a signal whose cause remains unidentified.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>144</t>
                            </td>
                            <td>
                                <t>Other.Test</t>
                            </td>
                            <td>
                                <t>An incident generated solely for the purpose of testing systems, processes, or training personnel. Examples: a synthetic test alert, a fire drill.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>145</t>
                            </td>
                            <td>
                                <t>Other.ext-value</t>
                            </td>
                            <td>
                                <t>A value used to indicate that this attribute is extended and the actual value is provided using the corresponding ext-* attribute. (see <xref target="private-extension-enum"/>) Examples: an extension placeholder used when no standard category applies.</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
      </section>
      <section>
        <name>Analyzer Category</name>
        <table anchor="id22"><name>enum_analyzer_category</name>
                
                <thead>
                        <tr>
                            <th>
                                <t>uank</t>
                            </th>
                            <th>
                                <t>Keyword</t>
                            </th>
                            <th>
                                <t>Description</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t>0</t>
                            </td>
                            <td>
                                <t>Undetermined</t>
                            </td>
                            <td>
                                <t>The analyzer category has not been determined, or cannot be established from available information. Ex: an analyzer whose type is unknown at ingestion time.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>1</t>
                            </td>
                            <td>
                                <t>APP.BAST</t>
                            </td>
                            <td>
                                <t>Bastion Host — A hardened, intermediary server that provides secure remote access to a protected network, acting as a single controlled entry point. Ex: an SSH jump host, a RDP gateway.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>2</t>
                            </td>
                            <td>
                                <t>APP.DAST</t>
                            </td>
                            <td>
                                <t>Dynamic Application Security Testing — Testing a running application from the outside to find security weaknesses in its runtime behaviour, without access to source code. Ex: a scanner probing a live web app for injection flaws.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>3</t>
                            </td>
                            <td>
                                <t>APP.IAST</t>
                            </td>
                            <td>
                                <t>Interactive Application Security Testing — Hybrid testing that instruments a running application from within (agent-based) while it is exercised, combining runtime and code-level visibility. Ex: an agent inside a Java app reporting tainted data flows.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>4</t>
                            </td>
                            <td>
                                <t>APP.RASP</t>
                            </td>
                            <td>
                                <t>Runtime Application Self-Protection — Security embedded inside a running application that detects and blocks attacks in real time from within the runtime, independently of the surrounding infrastructure. Ex: an in-app module blocking a SQL injection attempt.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>5</t>
                            </td>
                            <td>
                                <t>APP.SANDBOX</t>
                            </td>
                            <td>
                                <t>Sandbox / File Detonation — Isolated execution environment that analyses the behaviour of suspicious files or URLs and decides whether to raise an alert. Ex: a suspicious attachment detonated in a VM to observe its behaviour.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>6</t>
                            </td>
                            <td>
                                <t>APP.SAST</t>
                            </td>
                            <td>
                                <t>Static Application Security Testing — Analysis of application source code or binaries without executing them, to find vulnerabilities early in development. Ex: a linter flagging unsanitised input in source.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>7</t>
                            </td>
                            <td>
                                <t>APP.SCA</t>
                            </td>
                            <td>
                                <t>Software Composition Analysis — Analysis of third-party dependencies and libraries for known vulnerabilities, licence issues, and supply-chain risk. Ex: detecting a vulnerable open-source component in a build.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>8</t>
                            </td>
                            <td>
                                <t>CLD.CASB</t>
                            </td>
                            <td>
                                <t>Cloud Access Security Broker — A control point between users and cloud services that enforces security policy, visibility, and compliance for cloud usage. Ex: blocking unsanctioned SaaS uploads.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>9</t>
                            </td>
                            <td>
                                <t>CLD.CIEM</t>
                            </td>
                            <td>
                                <t>Cloud Infrastructure Entitlement Management — Management and least-privilege enforcement of identities, roles, and permissions across cloud environments. Ex: detecting over-permissive IAM roles.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>10</t>
                            </td>
                            <td>
                                <t>CLD.CSPM</t>
                            </td>
                            <td>
                                <t>Cloud Security Posture Management — Continuous monitoring of cloud configurations for misconfigurations, drift, and compliance violations. Ex: flagging a publicly exposed storage bucket.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>11</t>
                            </td>
                            <td>
                                <t>CLD.CWPP</t>
                            </td>
                            <td>
                                <t>Cloud Workload Protection Platform — Security for cloud workloads (VMs, containers, serverless) covering runtime, vulnerability, and threat detection. Ex: detecting a cryptominer in a container.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>12</t>
                            </td>
                            <td>
                                <t>DDoS.ANTI-DDOS</t>
                            </td>
                            <td>
                                <t>Distributed Denial of Service Protection — Systems and techniques that detect and mitigate volumetric or application-layer DDoS attacks. Ex: rate-limiting and scrubbing malicious floods.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>13</t>
                            </td>
                            <td>
                                <t>DDoS.SCRUB</t>
                            </td>
                            <td>
                                <t>Scrubber / Scrubbing Center — A dedicated traffic-cleaning facility that diverts and filters attack traffic before forwarding clean traffic to the target. Ex: a carrier scrubbing centre absorbing a 1 Tbps flood.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>14</t>
                            </td>
                            <td>
                                <t>DDoS.WAF-DDOS</t>
                            </td>
                            <td>
                                <t>Web Application Firewall with DDoS Protection — A WAF that also provides DDoS mitigation for HTTP/HTTPS traffic. Ex: blocking a Layer 7 HTTP flood against a web service.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>15</t>
                            </td>
                            <td>
                                <t>EMAIL.ANTI-PHISH</t>
                            </td>
                            <td>
                                <t>Anti-Phishing — Detection and blocking of phishing attempts in email, including malicious links, spoofed senders, and deceptive content. Ex: quarantining a credential-harvesting email.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>16</t>
                            </td>
                            <td>
                                <t>EMAIL.DMARC</t>
                            </td>
                            <td>
                                <t>Domain-based Message Authentication, Reporting and Conformance — Email authentication (SPF/DKIM/DMARC) monitoring and enforcement to prevent sender spoofing. Ex: rejecting mail failing DMARC alignment.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>17</t>
                            </td>
                            <td>
                                <t>EMAIL.SEG</t>
                            </td>
                            <td>
                                <t>Secure Email Gateway — A comprehensive email security appliance/service filtering inbound and outbound mail for spam, malware, phishing, and policy violations. Ex: a gateway scanning attachments before delivery.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>18</t>
                            </td>
                            <td>
                                <t>EMAIL.SPAM-FILTER</t>
                            </td>
                            <td>
                                <t>Spam Filter — Detection and filtering of unsolicited bulk email based on content, reputation, and heuristics. Ex: moving a bulk advertisement to the junk folder.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>19</t>
                            </td>
                            <td>
                                <t>END.AM</t>
                            </td>
                            <td>
                                <t>Application Allowlisting — Execution control that permits only explicitly approved applications to run, blocking all others by default. Ex: a workstation that only runs signed corporate apps.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>20</t>
                            </td>
                            <td>
                                <t>END.AV</t>
                            </td>
                            <td>
                                <t>Antivirus — Signature- and heuristic-based detection and removal of known malware on endpoints. Ex: quarantining a file matching a known virus signature.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>21</t>
                            </td>
                            <td>
                                <t>END.DLP-EP</t>
                            </td>
                            <td>
                                <t>Endpoint Data Loss Prevention — Prevention of sensitive data leakage from endpoint devices via channels such as USB, clipboard, print, or email. Ex: blocking a copy of customer data to a USB stick.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>22</t>
                            </td>
                            <td>
                                <t>END.EDR</t>
                            </td>
                            <td>
                                <t>Endpoint Detection and Response — Continuous endpoint monitoring, behavioural detection, and response capabilities for advanced threats. Ex: isolating a host showing lateral-movement behaviour.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>23</t>
                            </td>
                            <td>
                                <t>END.EPP</t>
                            </td>
                            <td>
                                <t>Endpoint Protection Platform — A consolidated endpoint security suite combining antivirus, firewall, EDR, and other protections in a single agent. Ex: a single agent providing AV, host firewall, and threat hunting.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>24</t>
                            </td>
                            <td>
                                <t>END.HIDS</t>
                            </td>
                            <td>
                                <t>Host Intrusion Detection System — Detection of malicious or anomalous activity on a host by monitoring system calls, files, and logs. Ex: alerting on a suspicious process spawning from a web server.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>25</t>
                            </td>
                            <td>
                                <t>END.HIPS</t>
                            </td>
                            <td>
                                <t>Host Intrusion Prevention System — Active prevention of host-level intrusions by blocking malicious system activity in real time. Ex: blocking an unauthorised process from modifying system files.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>26</t>
                            </td>
                            <td>
                                <t>END.HPT</t>
                            </td>
                            <td>
                                <t>Honeypot — A decoy system or service designed to attract and detect attackers, providing early warning and intelligence. Ex: a fake SSH server logging brute-force attempts.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>27</t>
                            </td>
                            <td>
                                <t>HUM.REPORT</t>
                            </td>
                            <td>
                                <t>Human Report — A human observer who analyses a situation and decides to raise an alert, acting as the analyzer in the IDMEFv2 sense. Ex: a guard reporting a suspicious crowd approaching a building, an operator qualifying an incident in a control room, a patrol officer signalling an anomaly.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>28</t>
                            </td>
                            <td>
                                <t>ID.DCAP</t>
                            </td>
                            <td>
                                <t>Data-Centric Audit and Protection — Monitoring and auditing of data access and usage, focused on the data itself rather than the infrastructure. Ex: alerting on unusual access to a sensitive database.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>29</t>
                            </td>
                            <td>
                                <t>ID.DLP</t>
                            </td>
                            <td>
                                <t>Data Loss Prevention — Detection and prevention of sensitive data exfiltration across all channels (network, endpoint, cloud). Ex: blocking an outbound email containing PII.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>30</t>
                            </td>
                            <td>
                                <t>ID.IAM</t>
                            </td>
                            <td>
                                <t>Identity and Access Management — Governance of identities and enforcement of access control across systems and applications. Ex: provisioning, authenticating, and authorising user accounts.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>31</t>
                            </td>
                            <td>
                                <t>ID.IRM</t>
                            </td>
                            <td>
                                <t>Identity Risk Management — Assessment and scoring of identity-related risk, such as dormant accounts, excessive privileges, or compromised credentials. Ex: flagging a service account with no owner.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>32</t>
                            </td>
                            <td>
                                <t>ID.MFA</t>
                            </td>
                            <td>
                                <t>Multi-Factor Authentication Analyzer — Analysis of multi-factor authentication events to detect bypass attempts, repeated failures, or anomalous challenges. Ex: alerting on repeated MFA push notifications ignored by a user.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>33</t>
                            </td>
                            <td>
                                <t>ID.PAM</t>
                            </td>
                            <td>
                                <t>Privileged Access Management — Control, vaulting, and monitoring of privileged accounts and sessions. Ex: a vault checking out an admin password for a session.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>34</t>
                            </td>
                            <td>
                                <t>ID.PIM</t>
                            </td>
                            <td>
                                <t>Privileged Identity Management — Just-in-time and lifecycle management of privileged identities and roles. Ex: granting temporary admin rights for a maintenance window.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>35</t>
                            </td>
                            <td>
                                <t>ID.SECRETS</t>
                            </td>
                            <td>
                                <t>Secrets Detection — Analysis of code repositories, configurations, and logs to detect exposed secrets such as API keys, tokens, or certificates. Ex: detecting an API key committed to a public repository.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>36</t>
                            </td>
                            <td>
                                <t>ID.UEBA</t>
                            </td>
                            <td>
                                <t>User and Entity Behaviour Analytics — Behavioural analytics over users and entities to detect anomalies and insider threats. Ex: alerting on a user downloading an unusual volume of files.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>37</t>
                            </td>
                            <td>
                                <t>NAT.AIR</t>
                            </td>
                            <td>
                                <t>Air Quality Sensor — Analysis of airborne particles and gases to detect pollution, smoke, or hazardous releases. Ex: detecting a pollution peak or a smoke plume from a fire.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>38</t>
                            </td>
                            <td>
                                <t>NAT.FIRE</t>
                            </td>
                            <td>
                                <t>Wildfire Detection — Detection of uncontrolled fires in natural or rural areas, typically via thermal or infrared sensing. Ex: a thermal sensor detecting a wildfire starting in a forest.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>39</t>
                            </td>
                            <td>
                                <t>NAT.HYDRO</t>
                            </td>
                            <td>
                                <t>Hydrological Sensor — Analysis of water levels, flow, and quality to detect floods, droughts, or contamination. Ex: a river gauge alerting on a rising water level.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>40</t>
                            </td>
                            <td>
                                <t>NAT.METEO</t>
                            </td>
                            <td>
                                <t>Meteorological Sensor — Analysis of atmospheric conditions (temperature, wind, precipitation, pressure) to detect weather events. Ex: a weather station alerting on a heatwave or storm.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>41</t>
                            </td>
                            <td>
                                <t>NAT.RADIO</t>
                            </td>
                            <td>
                                <t>Radiation Sensor — Analysis of ionizing radiation levels to detect nuclear incidents or radioactive releases. Ex: a radiation monitor alerting on abnormal levels near a facility.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>42</t>
                            </td>
                            <td>
                                <t>NAT.SAT</t>
                            </td>
                            <td>
                                <t>Earth Observation Satellite — Analysis of satellite imagery to detect large-scale natural events, environmental changes, or disasters. Ex: satellite imagery detecting a cyclone, a wildfire, or a flood.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>43</t>
                            </td>
                            <td>
                                <t>NAT.SEISMO</t>
                            </td>
                            <td>
                                <t>Seismic Sensor — Analysis of ground motion to detect earthquakes, volcanic activity, or subsurface events. Ex: a seismograph alerting on a magnitude 6.0 earthquake.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>44</t>
                            </td>
                            <td>
                                <t>NET.DNS-FW</t>
                            </td>
                            <td>
                                <t>DNS Firewall — Filtering of DNS queries to block resolution of malicious or unwanted domains. Ex: blocking resolution of a known C2 domain.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>45</t>
                            </td>
                            <td>
                                <t>NET.DPI</t>
                            </td>
                            <td>
                                <t>Deep Packet Inspection — Inspection of packet payloads beyond headers to identify protocols, applications, or malicious content. Ex: detecting malware signatures inside HTTPS traffic.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>46</t>
                            </td>
                            <td>
                                <t>NET.FW</t>
                            </td>
                            <td>
                                <t>Firewall — Filtering and policy enforcement of network traffic based on addresses, ports, and protocols. Ex: blocking inbound traffic to a database port from the internet.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>47</t>
                            </td>
                            <td>
                                <t>NET.NAC</t>
                            </td>
                            <td>
                                <t>Network Access Control — Enforcement of endpoint compliance and identity before granting network access. Ex: quarantining a non-patched laptop until it is remediated.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>48</t>
                            </td>
                            <td>
                                <t>NET.NBAD</t>
                            </td>
                            <td>
                                <t>Network Behaviour Anomaly Detection — Detection of deviations from normal network behaviour patterns, typically via baselining and statistics. Ex: alerting on an unusual spike in DNS queries from one host.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>49</t>
                            </td>
                            <td>
                                <t>NET.NDR</t>
                            </td>
                            <td>
                                <t>Network Detection and Response — Continuous network monitoring, behavioural detection, and response for advanced threats. Ex: correlating east-west traffic to identify lateral movement.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>50</t>
                            </td>
                            <td>
                                <t>NET.NGFW</t>
                            </td>
                            <td>
                                <t>Next-Generation Firewall — A firewall with application awareness, user identity, and integrated threat prevention (IPS, AV, URL filtering). Ex: allowing only sanctioned apps regardless of port.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>51</t>
                            </td>
                            <td>
                                <t>NET.NIDS</t>
                            </td>
                            <td>
                                <t>Network Intrusion Detection System — Passive monitoring of network traffic to detect known attack patterns and anomalies. Ex: alerting on a signature matching an exploit attempt.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>52</t>
                            </td>
                            <td>
                                <t>NET.NIPS</t>
                            </td>
                            <td>
                                <t>Network Intrusion Prevention System — Inline inspection of network traffic that can actively block detected attacks. Ex: dropping packets matching an exploit signature.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>53</t>
                            </td>
                            <td>
                                <t>NET.PROXY</t>
                            </td>
                            <td>
                                <t>Proxy Server — An intermediary for client requests that enforces ACLs and can inspect TLS sessions. Ex: a forward proxy logging and filtering outbound web traffic.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>54</t>
                            </td>
                            <td>
                                <t>NET.WAF</t>
                            </td>
                            <td>
                                <t>Web Application Firewall — Filtering of HTTP/HTTPS traffic to protect web applications from common attacks (OWASP Top 10, etc.). Ex: blocking a SQL injection attempt against a web app.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>55</t>
                            </td>
                            <td>
                                <t>NET.WIDS</t>
                            </td>
                            <td>
                                <t>Wireless Intrusion Detection System — Passive monitoring of wireless networks to detect rogue APs, evil twins, and wireless attacks. Ex: alerting on an unauthorised AP in the building.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>56</t>
                            </td>
                            <td>
                                <t>NET.WIPS</t>
                            </td>
                            <td>
                                <t>Wireless Intrusion Prevention System — Active prevention of wireless threats, including containment of rogue devices. Ex: deauthenticating clients from a rogue AP.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>57</t>
                            </td>
                            <td>
                                <t>OT.IOT-IDS</t>
                            </td>
                            <td>
                                <t>IoT Intrusion Detection System — Detection of threats targeting IoT devices, whose constraints (power, compute, protocols) differ from general IT. Ex: alerting on anomalous MQTT traffic from a sensor.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>58</t>
                            </td>
                            <td>
                                <t>OT.OT-IDS</t>
                            </td>
                            <td>
                                <t>Operational Technology IDS — Detection of threats in industrial control systems (SCADA, DCS), where availability and safety dominate. Ex: alerting on unauthorised Modbus writes to a PLC.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>59</t>
                            </td>
                            <td>
                                <t>OT.PLC-SCAN</t>
                            </td>
                            <td>
                                <t>PLC Scanner — Discovery and vulnerability assessment of PLC/SCADA devices in operational environments. Ex: enumerating PLCs on a plant network and checking firmware versions.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>60</t>
                            </td>
                            <td>
                                <t>OT.SCADA</t>
                            </td>
                            <td>
                                <t>SCADA Monitor — Analysis of supervisory control and data acquisition systems to detect abnormal process states or operational anomalies. Ex: alerting on an abnormal pressure reading in an industrial process.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>61</t>
                            </td>
                            <td>
                                <t>OT.SENSOR</t>
                            </td>
                            <td>
                                <t>Industrial Sensor — Analysis of industrial measurements (pressure, temperature, flow) to detect abnormal process conditions. Ex: a flow sensor alerting on a sudden drop in a pipeline.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>62</t>
                            </td>
                            <td>
                                <t>PHY.1D-LAS</t>
                            </td>
                            <td>
                                <t>Laser Sensor 1D — Measures distance or presence along a single axis using a laser beam. Ex: a laser rangefinder, a beam-break tripwire.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>63</t>
                            </td>
                            <td>
                                <t>PHY.2D-LAS</t>
                            </td>
                            <td>
                                <t>Laser Sensor 2D — Scans a plane with a laser to detect presence, contours, or movement in two dimensions. Ex: a planar laser scanner guarding an entrance.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>64</t>
                            </td>
                            <td>
                                <t>PHY.3D-LAS</t>
                            </td>
                            <td>
                                <t>Laser Sensor 3D — Scans a volume with a laser to produce a three-dimensional representation of a scene. Ex: a 3D scanner producing a point cloud of a room.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>65</t>
                            </td>
                            <td>
                                <t>PHY.ACCESS-CTRL</t>
                            </td>
                            <td>
                                <t>Access Control System — Physical entry/exit control using credentials (badge, PIN, biometric) and monitoring of door state. Ex: a badge reader logging who enters a server room.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>66</t>
                            </td>
                            <td>
                                <t>PHY.ADS</t>
                            </td>
                            <td>
                                <t>Anti-Drone System — Detection (and sometimes neutralisation) of unauthorised drones via RF, radar, or acoustic sensing. Ex: detecting a drone approaching a restricted site.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>67</t>
                            </td>
                            <td>
                                <t>PHY.CBRN</t>
                            </td>
                            <td>
                                <t>CBRN Detector — Detection of chemical, biological, radiological, or nuclear agents in the environment. Ex: a detector alerting on a chemical agent release.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>68</t>
                            </td>
                            <td>
                                <t>PHY.FIRE</t>
                            </td>
                            <td>
                                <t>Fire Detector — Detection of heat, flame, or combustion products indicating a fire. Ex: a flame detector triggering an alarm in a warehouse.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>69</t>
                            </td>
                            <td>
                                <t>PHY.FR-CAM</t>
                            </td>
                            <td>
                                <t>Face Recognition Camera — A camera coupled with biometric software that identifies or verifies individuals from facial features. Ex: matching a person against an authorised list at a gate.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>70</t>
                            </td>
                            <td>
                                <t>PHY.GAS</t>
                            </td>
                            <td>
                                <t>Gas Detector — Detection of hazardous or combustible gases in the environment. Ex: a methane detector alerting in a confined space.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>71</t>
                            </td>
                            <td>
                                <t>PHY.GLASS-BRK</t>
                            </td>
                            <td>
                                <t>Glass Break Detector — An acoustic sensor detecting the specific sound signature of breaking glass. Ex: triggering an alarm when a window is smashed.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>72</t>
                            </td>
                            <td>
                                <t>PHY.HAR</t>
                            </td>
                            <td>
                                <t>Human Activity Recognition — AI-based analysis of video or sensor data to recognise human activities and behaviours. Ex: detecting a person falling, running, or loitering.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>73</t>
                            </td>
                            <td>
                                <t>PHY.LWIR</t>
                            </td>
                            <td>
                                <t>Long-Wave Infrared — Thermal imaging in the long-wave IR band (roughly 8–14 µm), suited to ambient-temperature detection. Ex: a thermal camera detecting body heat at night.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>74</t>
                            </td>
                            <td>
                                <t>PHY.MOT-SEN</t>
                            </td>
                            <td>
                                <t>Motion Sensor — A sensor (PIR, microwave, ultrasonic) detecting movement in its field of view. Ex: a PIR sensor turning on a light and logging presence.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>75</t>
                            </td>
                            <td>
                                <t>PHY.MWIR</t>
                            </td>
                            <td>
                                <t>Mid-Wave Infrared — Thermal imaging in the mid-wave IR band (roughly 3–5 µm), used for higher-temperature targets and some gas detection. Ex: a MWIR camera monitoring an industrial furnace.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>76</t>
                            </td>
                            <td>
                                <t>PHY.OBJ-DET</t>
                            </td>
                            <td>
                                <t>Object Detection Camera — A camera with AI models that detect and classify objects in the scene. Ex: detecting a left bag or a vehicle in a restricted zone.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>77</t>
                            </td>
                            <td>
                                <t>PHY.PERIMETER</t>
                            </td>
                            <td>
                                <t>Perimeter Detection — Detection of intrusion across a perimeter using barriers, fibre optics, or microwave sensing. Ex: a fence-mounted fibre sensor alerting on an attempted climb.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>78</t>
                            </td>
                            <td>
                                <t>PHY.RADAR</t>
                            </td>
                            <td>
                                <t>Radar Sensor — Detection of movement, presence, or objects using radio waves. Ex: a ground radar detecting an intrusion across a perimeter.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>79</t>
                            </td>
                            <td>
                                <t>PHY.SMOKE</t>
                            </td>
                            <td>
                                <t>Smoke Detector — Detection of smoke particles indicating a fire. Ex: a smoke detector triggering an alarm in a server room.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>80</t>
                            </td>
                            <td>
                                <t>PHY.SWIR</t>
                            </td>
                            <td>
                                <t>Short-Wave Infrared — Imaging in the short-wave IR band (roughly 0.9–1.7 µm), useful for seeing through haze and some materials. Ex: a SWIR camera inspecting contents through a container.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>81</t>
                            </td>
                            <td>
                                <t>PHY.VAD</t>
                            </td>
                            <td>
                                <t>Voice Activity Detection — Audio analysis that detects the presence of human speech in a signal. Ex: triggering recording only when speech is present.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>82</t>
                            </td>
                            <td>
                                <t>PHY.VNIR</t>
                            </td>
                            <td>
                                <t>Visible and Near-Infrared — Multi-spectral imaging covering the visible and near-IR bands. Ex: a VNIR camera used in low-light surveillance.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>83</t>
                            </td>
                            <td>
                                <t>PHY.WATER</t>
                            </td>
                            <td>
                                <t>Water Leak Detector — Detection of water presence or leakage in a monitored area. Ex: a leak sensor alerting in a data centre.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>84</t>
                            </td>
                            <td>
                                <t>SIEM.APM</t>
                            </td>
                            <td>
                                <t>Application Performance Monitoring — Analysis of application performance and availability to detect degradations, errors, or outages. Ex: alerting on a spike in response time for a critical service.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>85</t>
                            </td>
                            <td>
                                <t>SIEM.ETL</t>
                            </td>
                            <td>
                                <t>Extract, Transform, Load — Data pipeline tooling that collects, normalises, and routes data to downstream stores. Ex: Logstash, Fluentd, Vector.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>86</t>
                            </td>
                            <td>
                                <t>SIEM.LOG</t>
                            </td>
                            <td>
                                <t>Log Analyzer — Aggregation, indexing, and search of log data for troubleshooting and security analysis. Ex: an ELK stack or Splunk index.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>87</t>
                            </td>
                            <td>
                                <t>SIEM.NMS</t>
                            </td>
                            <td>
                                <t>Network Management System — Monitoring and management of network devices, links, and performance. Ex: a NMS alerting on a down interface.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>88</t>
                            </td>
                            <td>
                                <t>SIEM.SIEM</t>
                            </td>
                            <td>
                                <t>Security Information and Event Management — Centralised collection, correlation, and alerting across security-relevant data sources. Ex: correlating firewall and endpoint events into one alert.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>89</t>
                            </td>
                            <td>
                                <t>SIEM.SOAR</t>
                            </td>
                            <td>
                                <t>Security Orchestration, Automation and Response — Automation of security workflows and incident response playbooks. Ex: auto-enriching an alert and opening a ticket.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>90</t>
                            </td>
                            <td>
                                <t>SIEM.UPTIME</t>
                            </td>
                            <td>
                                <t>Uptime Monitoring — Analysis of service and infrastructure availability to detect outages and recoveries. Ex: alerting when a critical service becomes unreachable.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>91</t>
                            </td>
                            <td>
                                <t>TI.CTI</t>
                            </td>
                            <td>
                                <t>Cyber Threat Intelligence — Strategic and operational intelligence about threats, actors, and campaigns, produced for decision-making. Ex: a report on an APT targeting your sector.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>92</t>
                            </td>
                            <td>
                                <t>TI.TI-FEED</t>
                            </td>
                            <td>
                                <t>Threat Intelligence Feed — A stream of structured threat data (IOCs, TTPs) consumed for detection and enrichment. Ex: a STIX/TAXII feed of malicious IPs.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>93</t>
                            </td>
                            <td>
                                <t>TI.TIP</t>
                            </td>
                            <td>
                                <t>Threat Intelligence Platform — Aggregation, correlation, and management of threat intelligence from multiple sources. Ex: a platform correlating IOCs from several feeds.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>94</t>
                            </td>
                            <td>
                                <t>VM.ASM</t>
                            </td>
                            <td>
                                <t>Attack Surface Management — Discovery and continuous monitoring of an organisation's externally exposed assets. Ex: finding an unknown public subdomain.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>95</t>
                            </td>
                            <td>
                                <t>VM.PENTEST</t>
                            </td>
                            <td>
                                <t>Penetration Testing Tools — Tools supporting manual or automated offensive testing of systems and applications. Ex: exploitation frameworks and scanners used by testers.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>96</t>
                            </td>
                            <td>
                                <t>VM.VULN-SCANNER</t>
                            </td>
                            <td>
                                <t>Vulnerability Scanner — Automated assessment of systems and applications for known vulnerabilities. Ex: a scanner reporting missing patches and CVEs.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>97</t>
                            </td>
                            <td>
                                <t>ext-value</t>
                            </td>
                            <td>
                                <t>A value used to indicate that this attribute is extended and the actual value is provided using the corresponding ext-* attribute. (see <xref target="private-extension-enum"/>) Ex: a vendor-specific analyzer type declared through the extension mechanism.</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
      </section>
      <section>
        <name>Analyzer Data</name>
        <table anchor="id23"><name>enum_analyzer_data</name>
                
                <thead>
                        <tr>
                            <th>
                                <t>Rank</t>
                            </th>
                            <th>
                                <t>Keyword</t>
                            </th>
                            <th>
                                <t>Description</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t>0</t>
                            </td>
                            <td>
                                <t>Undetermined</t>
                            </td>
                            <td>
                                <t>The analyzed data type is unknown or not yet classified. Used as a placeholder when no other value applies. Example: a generic analyzer whose input could not be identified.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>1</t>
                            </td>
                            <td>
                                <t>Acoustics</t>
                            </td>
                            <td>
                                <t>Sound pressure or specific frequency measurements captured by a microphone or acoustic sensor. Example: gunshot detection, glass break detection, machine noise spectrum.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>2</t>
                            </td>
                            <td>
                                <t>Alert</t>
                            </td>
                            <td>
                                <t>IDMEFv2 or equivalent alert produced by an upstream analyzer and consumed as input by a correlator, aggregator or hypervisor. Example: IDMEFv2 JSON alert from a local SOC processed by a central SOC correlator.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>3</t>
                            </td>
                            <td>
                                <t>Contact</t>
                            </td>
                            <td>
                                <t>Physical interaction or binary state change detected by a contact sensor. Example: door contact switch, cabinet open detection, tamper switch.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>4</t>
                            </td>
                            <td>
                                <t>Content</t>
                            </td>
                            <td>
                                <t>Payload or body of a communication inspected at the application layer. Example: HTTP body, email message, SMTP DATA section, file transfer payload, DPI-matched bytes.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>5</t>
                            </td>
                            <td>
                                <t>Data</t>
                            </td>
                            <td>
                                <t>Generic or opaque data stream whose structure is not further specified. Example: raw sensor telemetry, vendor-specific binary stream, serial output.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>6</t>
                            </td>
                            <td>
                                <t>Datagram</t>
                            </td>
                            <td>
                                <t>Raw packet-level data captured at the network layer. Example: Ethernet frame, IPv4/IPv6 packet, TCP segment, UDP datagram, ICMP message.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>7</t>
                            </td>
                            <td>
                                <t>External</t>
                            </td>
                            <td>
                                <t>Data originating from a third party such as a threat intelligence feed or an external CERT. Example: STIX/TAXII feed, IOC list, external CERT notification, vendor advisory.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>8</t>
                            </td>
                            <td>
                                <t>File</t>
                            </td>
                            <td>
                                <t>Content or metadata of a file read by the analyzer for inspection, integrity or change detection. Example: file hash, PE header, document content, file permissions, modification timestamp.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>9</t>
                            </td>
                            <td>
                                <t>Flow</t>
                            </td>
                            <td>
                                <t>Network flow records aggregating packets by 5-tuple or similar criteria. Example: NetFlow, IPFIX, sFlow records exported by routers or probes.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>10</t>
                            </td>
                            <td>
                                <t>Fog</t>
                            </td>
                            <td>
                                <t>Visibility reduction or optical density measured by a fog sensor. Example: fog detection on a perimeter road, visibility monitoring for cameras.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>11</t>
                            </td>
                            <td>
                                <t>Humidity</t>
                            </td>
                            <td>
                                <t>Relative humidity or moisture content in the air measured by a hygrometer. Example: datacenter humidity level, warehouse moisture monitoring.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>12</t>
                            </td>
                            <td>
                                <t>Images</t>
                            </td>
                            <td>
                                <t>Visible-spectrum image or video frames captured by a camera. Example: CCTV frame, IP camera stream, facial recognition input.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>13</t>
                            </td>
                            <td>
                                <t>Lidar</t>
                            </td>
                            <td>
                                <t>Point cloud or distance measurements produced by a laser-based sensor. Example: 3D point cloud from a rotating lidar, perimeter scanning lidar.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>14</t>
                            </td>
                            <td>
                                <t>Light</t>
                            </td>
                            <td>
                                <t>Ambient light level or flicker detected by a photodetector. Example: lux measurement, room lighting state, strobe or flicker detection.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>15</t>
                            </td>
                            <td>
                                <t>Log</t>
                            </td>
                            <td>
                                <t>Structured or unstructured event records produced by systems, applications or security devices. Example: syslog messages, Windows EventLog entries, journald records, firewall logs, application traces.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>16</t>
                            </td>
                            <td>
                                <t>Magnetic</t>
                            </td>
                            <td>
                                <t>Magnetic field strength or anomaly detected by a magnetometer. Example: door open/close magnetic contact, vehicle detection, magnetic anomaly near equipment.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>17</t>
                            </td>
                            <td>
                                <t>Particles</t>
                            </td>
                            <td>
                                <t>Concentration of dust, smoke or airborne contaminants measured by a particle sensor. Example: smoke detector, PM2.5 sensor, dust monitoring in a facility.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>18</t>
                            </td>
                            <td>
                                <t>PCAP</t>
                            </td>
                            <td>
                                <t>Packet capture files stored on disk and analyzed offline. Example: .pcap and .pcapng files produced by tcpdump, dumpcap or Wireshark.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>19</t>
                            </td>
                            <td>
                                <t>Rain</t>
                            </td>
                            <td>
                                <t>Precipitation detected or measured by a rain sensor. Example: rainfall detection on an outdoor site, rain gauge.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>20</t>
                            </td>
                            <td>
                                <t>Seismic</t>
                            </td>
                            <td>
                                <t>Ground motion or earthquake-related signals captured by a seismograph. Example: earthquake detection, ground vibration near a datacenter.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>21</t>
                            </td>
                            <td>
                                <t>SNMP</t>
                            </td>
                            <td>
                                <t>Data retrieved via the Simple Network Management Protocol from managed devices. Example: SNMP GET/WALK results, MIB object values, traps and informs.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>22</t>
                            </td>
                            <td>
                                <t>Temperature</t>
                            </td>
                            <td>
                                <t>Ambient, device or surface temperature measured by a thermometer or thermal probe. Example: server room temperature, device CPU temperature, cold-chain monitoring.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>23</t>
                            </td>
                            <td>
                                <t>Thermal</t>
                            </td>
                            <td>
                                <t>Infrared image or heat signature data captured by a thermal sensor. Example: thermal camera frame, heat map of a room or equipment.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>24</t>
                            </td>
                            <td>
                                <t>Vibration</t>
                            </td>
                            <td>
                                <t>Mechanical oscillation or structural movement measured by an accelerometer or vibration sensor. Example: seismic-grade vibration of a server rack, structural health monitoring of a bridge.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>25</t>
                            </td>
                            <td>
                                <t>Water</t>
                            </td>
                            <td>
                                <t>Presence, flow or level of water detected by a sensor. Example: leak detection under a raised floor, flood sensor, water flow meter.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>26</t>
                            </td>
                            <td>
                                <t>ext-value</t>
                            </td>
                            <td>
                                <t>A value used to indicate that this attribute is extended and the actual value is provided using the corresponding ext-* attribute. (see <xref target="private-extension-enum"/>)</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
      </section>
      <section>
        <name>Analyzer Method</name>
        <table anchor="id24"><name>Analyzer Methods</name>
                
                <thead>
                        <tr>
                            <th>
                                <t>Rank</t>
                            </th>
                            <th>
                                <t>Keyword</t>
                            </th>
                            <th>
                                <t>Description</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t>0</t>
                            </td>
                            <td>
                                <t>Undetermined</t>
                            </td>
                            <td>
                                <t>Analyser method is undetermed</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>1</t>
                            </td>
                            <td>
                                <t>AI</t>
                            </td>
                            <td>
                                <t>An analyzer that uses machine learning, deep learning, or other artificial intelligence techniques to learn normal behavior and detect sophisticated or novel threats.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>2</t>
                            </td>
                            <td>
                                <t>Anomaly</t>
                            </td>
                            <td>
                                <t>An analyzer that identifies deviations from established norms or baselines without relying on predefined signatures, often flagging unusual patterns in traffic, behavior, or system activity.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>3</t>
                            </td>
                            <td>
                                <t>Behavioral</t>
                            </td>
                            <td>
                                <t>An analyzer that monitors and analyzes the actions of users, entities, or processes over time to detect malicious or suspicious activities that deviate from expected behavior patterns.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>4</t>
                            </td>
                            <td>
                                <t>Biometric</t>
                            </td>
                            <td>
                                <t>An analyzer that uses electronic devices to capture and measure unique physical or behavioral characteristics (e.g., fingerprint, iris, voice) for identification or authentication purposes.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>5</t>
                            </td>
                            <td>
                                <t>Blackhole</t>
                            </td>
                            <td>
                                <t>A method that analyses traffic destined for a non-existent or sinkhole route to identify malicious activity, such as connections to known command-and-control servers or scanning from infected hosts.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>6</t>
                            </td>
                            <td>
                                <t>Contextual</t>
                            </td>
                            <td>
                                <t>An analyzer that enriches raw events with additional context (e.g., asset value, user role, time of day, business criticality) to prioritize alerts and assess true impact.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>7</t>
                            </td>
                            <td>
                                <t>Correlation</t>
                            </td>
                            <td>
                                <t>An analyzer that aggregates and examines multiple, disparate data streams or events to identify complex relationships, patterns, sequences, or dependencies that indicate a security incident.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>8</t>
                            </td>
                            <td>
                                <t>Ensemble</t>
                            </td>
                            <td>
                                <t>An analyzer that combines multiple detection methods (e.g., signature, anomaly, behavioral) to improve accuracy, reduce false positives, and detect threats that single methods might miss.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>9</t>
                            </td>
                            <td>
                                <t>Fingerprinting</t>
                            </td>
                            <td>
                                <t>An analyzer that creates unique identifiers or "fingerprints" for devices, applications, or network stacks to detect spoofing, unauthorized devices, or configuration changes.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>10</t>
                            </td>
                            <td>
                                <t>Frequency</t>
                            </td>
                            <td>
                                <t>An analyzer that detects incidents based on the rate or regularity of events (e.g., repeated failed logins, rapid-fire requests) exceeding or falling below expected frequencies.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>11</t>
                            </td>
                            <td>
                                <t>Fusion</t>
                            </td>
                            <td>
                                <t>An analyzer that combines data from multiple heterogeneous sensors and sources to create a comprehensive, high-confidence view of an incident, reducing ambiguity and false alerts.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>12</t>
                            </td>
                            <td>
                                <t>Geolocation</t>
                            </td>
                            <td>
                                <t>An analyzer that determines the physical location of an asset or event (e.g., login attempt, IP address, device) and flags activities occurring from unexpected or high-risk locations.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>13</t>
                            </td>
                            <td>
                                <t>Graph-based</t>
                            </td>
                            <td>
                                <t>An analyzer that models relationships between entities (users, devices, processes) as graphs and detects anomalies or attack paths by analyzing connections, dependencies, and traversals.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>14</t>
                            </td>
                            <td>
                                <t>Heat</t>
                            </td>
                            <td>
                                <t>An analyzer (sensor or device) that detects, measures, and monitors thermal energy (infrared radiation) to identify anomalies like fires, overheating equipment, or human presence.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>15</t>
                            </td>
                            <td>
                                <t>Heuristic</t>
                            </td>
                            <td>
                                <t>An analyzer that detects potentially unknown threats by using algorithmic logic, rules of thumb, or suspicious characteristics rather than relying on specific signature matches.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>16</t>
                            </td>
                            <td>
                                <t>Honeypot</t>
                            </td>
                            <td>
                                <t>A decoy system or resource designed to lure, detect, and analyze malicious activity by mimicking a legitimate target, diverting attackers away from real assets.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>17</t>
                            </td>
                            <td>
                                <t>Hygiene</t>
                            </td>
                            <td>
                                <t>An analyzer that continuously checks systems and configurations against security best practices, compliance standards, or hardening guidelines to identify weaknesses or drift.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>18</t>
                            </td>
                            <td>
                                <t>Integrity</t>
                            </td>
                            <td>
                                <t>An analyzer that monitors critical system components (files, configurations, registry keys) for unauthorized changes, verifying their integrity against a known good baseline.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>19</t>
                            </td>
                            <td>
                                <t>Metadata</t>
                            </td>
                            <td>
                                <t>An analyzer that examines the data about data (e.g., file creation timestamps, email headers, connection logs) to uncover hidden relationships or suspicious attributes.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>20</t>
                            </td>
                            <td>
                                <t>Monitor</t>
                            </td>
                            <td>
                                <t>An analyzer that continuously observes a system, network, or environment to track its state, health, or activity, often providing real-time alerts on specific conditions.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>21</t>
                            </td>
                            <td>
                                <t>Movement</t>
                            </td>
                            <td>
                                <t>An analyzer (sensor or system) that detects, tracks, and quantifies physical motion using technologies like radar, lidar, or video analytics.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>22</t>
                            </td>
                            <td>
                                <t>Orchestration</t>
                            </td>
                            <td>
                                <t>An analyzer that coordinates and triggers automated response actions based on detected incidents, often integrated with SOAR (Security Orchestration, Automation, and Response) platforms.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>23</t>
                            </td>
                            <td>
                                <t>Pattern</t>
                            </td>
                            <td>
                                <t>An analyzer that identifies specific sequences, combinations, or recurring arrangements of events or data that indicate malicious activity, even if individual elements appear benign.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>24</t>
                            </td>
                            <td>
                                <t>Policy</t>
                            </td>
                            <td>
                                <t>An analyzer that evaluates events, configurations, or behaviors against a set of predefined rules, configurations, or compliance requirements to detect violations or misconfigurations.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>25</t>
                            </td>
                            <td>
                                <t>Predictive</t>
                            </td>
                            <td>
                                <t>An analyzer that uses historical data and modeling to forecast potential future incidents, vulnerabilities, or attack vectors before they occur.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>26</t>
                            </td>
                            <td>
                                <t>Protocol</t>
                            </td>
                            <td>
                                <t>An analyzer that validates network traffic or communications against expected protocol specifications, RFC compliance, or standard behavior to detect anomalies or malicious variations.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>27</t>
                            </td>
                            <td>
                                <t>Recon</t>
                            </td>
                            <td>
                                <t>An analyzer that actively or passively probes or monitors an environment to discover assets, services, or vulnerabilities, often as part of a defensive assessment or adversary simulation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>28</t>
                            </td>
                            <td>
                                <t>Reputation</t>
                            </td>
                            <td>
                                <t>An analyzer that evaluates the trustworthiness of an entity (e.g., IP address, domain, file hash) by checking it against known threat intelligence lists, blocklists, or reputation scores.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>29</t>
                            </td>
                            <td>
                                <t>Rule-based</t>
                            </td>
                            <td>
                                <t>An analyzer that applies conditional logic (if-then-else statements) defined by experts to correlate events and generate alerts based on specific combinations of conditions.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>30</t>
                            </td>
                            <td>
                                <t>Sequence</t>
                            </td>
                            <td>
                                <t>An analyzer that detects threats by examining the order and timing of events, identifying attack chains or kill chain progressions (e.g., scan → exploit → installation → C2).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>31</t>
                            </td>
                            <td>
                                <t>Signature</t>
                            </td>
                            <td>
                                <t>An analyzer that detects known threats by matching events or patterns against a database of specific signatures, hashes, or Indicators of Compromise (IoCs).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>32</t>
                            </td>
                            <td>
                                <t>Statistical</t>
                            </td>
                            <td>
                                <t>An analyzer that detects anomalies by establishing a baseline of normal behavior and identifying events that deviate significantly from expected statistical parameters.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>33</t>
                            </td>
                            <td>
                                <t>Tarpit</t>
                            </td>
                            <td>
                                <t>A mechanism that intentionally slows down or delays suspicious connections (e.g., network connections or login attempts) to hinder automated attacks and scanning.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>34</t>
                            </td>
                            <td>
                                <t>Threat Intelligence</t>
                            </td>
                            <td>
                                <t>An analyzer that ingests and matches internal events against external threat feeds, IoC lists, and adversary TTPs (Tactics, Techniques, and Procedures) to identify known threats.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>35</t>
                            </td>
                            <td>
                                <t>Threshold</t>
                            </td>
                            <td>
                                <t>An analyzer that detects incidents by comparing a metric or count (e.g., number of failed logins, traffic volume) against a predefined limit or threshold.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>36</t>
                            </td>
                            <td>
                                <t>Trend</t>
                            </td>
                            <td>
                                <t>An analyzer that monitors data over extended periods to identify gradual changes, emerging patterns, or long-term shifts that may indicate evolving threats or security degradation.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>37</t>
                            </td>
                            <td>
                                <t>ext-value</t>
                            </td>
                            <td>
                                <t>A value used to indicate that this attribute is extended and the actual value is provided using the corresponding ext-* attribute. (see <xref target="private-extension-enum"/>)</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
      </section>
      <section>
        <name>Source Category</name>
        <table anchor="id25"><name>Source Categories</name>
                
                <thead>
                        <tr>
                            <th>
                                <t>Rank</t>
                            </th>
                            <th>
                                <t>Keyword</t>
                            </th>
                            <th>
                                <t>Description</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t>0</t>
                            </td>
                            <td>
                                <t>Undetermined</t>
                            </td>
                            <td>
                                <t>Source Category is undetermined.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>1</t>
                            </td>
                            <td>
                                <t>Acoustic.Sound.GlassBreak</t>
                            </td>
                            <td>
                                <t>Specific frequencies (glass breaking, gunshots)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>2</t>
                            </td>
                            <td>
                                <t>Acoustic.Sound.Infrasound</t>
                            </td>
                            <td>
                                <t>Infrasound (nuclear explosions, volcanic activity)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>3</t>
                            </td>
                            <td>
                                <t>Acoustic.Sound.PressurizedLeak</t>
                            </td>
                            <td>
                                <t>Leaks in pressurized pipes (high-frequency hiss)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>4</t>
                            </td>
                            <td>
                                <t>Acoustic.Sound.SonarEcho</t>
                            </td>
                            <td>
                                <t>Sonar echoes (submarines, fish, seafloor mapping)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>5</t>
                            </td>
                            <td>
                                <t>Acoustic.Sound.UltrasonicNoise</t>
                            </td>
                            <td>
                                <t>Ultrasonic noise (for pest detection or leak detection)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>6</t>
                            </td>
                            <td>
                                <t>Acoustic.Vibration.Footstep</t>
                            </td>
                            <td>
                                <t>Footsteps (geophones or seismic sensors)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>7</t>
                            </td>
                            <td>
                                <t>Acoustic.Vibration.Seismic</t>
                            </td>
                            <td>
                                <t>Seismic activity (earthquakes, tremors)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>8</t>
                            </td>
                            <td>
                                <t>Acoustic.Vibration.StructuralCrack</t>
                            </td>
                            <td>
                                <t>Structural integrity (cracks via acoustic emission)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>9</t>
                            </td>
                            <td>
                                <t>Acoustic.Vibration.VehicleVibe</t>
                            </td>
                            <td>
                                <t>Vehicle movement (magnetic or seismic)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>10</t>
                            </td>
                            <td>
                                <t>Acoustic.Vibration.VibAnalysis</t>
                            </td>
                            <td>
                                <t>Machinery imbalance (vibration analysis)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>11</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.CO</t>
                            </td>
                            <td>
                                <t>Carbon Monoxide (CO)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>12</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.CWA</t>
                            </td>
                            <td>
                                <t>CWA (Chemical Warfare Agents - Nerve gas, Blister agents)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>13</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.Freon</t>
                            </td>
                            <td>
                                <t>Refrigerant leaks (Freon)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>14</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.Hydrogen</t>
                            </td>
                            <td>
                                <t>Hydrogen</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>15</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.Methane</t>
                            </td>
                            <td>
                                <t>Natural Gas / Methane</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>16</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.O2Level</t>
                            </td>
                            <td>
                                <t>Oxygen levels (deficiency or enrichment)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>17</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.Propane</t>
                            </td>
                            <td>
                                <t>Propane / LPG</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>18</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.Radon</t>
                            </td>
                            <td>
                                <t>Radon</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>19</t>
                            </td>
                            <td>
                                <t>ChemBio.Gases.VOC</t>
                            </td>
                            <td>
                                <t>Volatile Organic Compounds (VOCs) - paint fumes, off-gassing</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>20</t>
                            </td>
                            <td>
                                <t>ChemBio.Properties.ORP</t>
                            </td>
                            <td>
                                <t>Oxidation-Reduction Potential (ORP)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>21</t>
                            </td>
                            <td>
                                <t>ChemBio.Properties.pHLevel</t>
                            </td>
                            <td>
                                <t>pH levels (acidity/alkalinity)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>22</t>
                            </td>
                            <td>
                                <t>ChemBio.Properties.Salinity</t>
                            </td>
                            <td>
                                <t>Salinity</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>23</t>
                            </td>
                            <td>
                                <t>ChemBio.Threats.Anthrax</t>
                            </td>
                            <td>
                                <t>Anthrax spores</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>24</t>
                            </td>
                            <td>
                                <t>ChemBio.Threats.Botulinum</t>
                            </td>
                            <td>
                                <t>Botulinum toxin</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>25</t>
                            </td>
                            <td>
                                <t>ChemBio.Threats.Pathogen</t>
                            </td>
                            <td>
                                <t>Pathogens in water (E. coli, Cholera)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>26</t>
                            </td>
                            <td>
                                <t>ChemBio.Threats.Ricin</t>
                            </td>
                            <td>
                                <t>Ricin</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>27</t>
                            </td>
                            <td>
                                <t>Cyber.Application.SQLQuery</t>
                            </td>
                            <td>
                                <t>Malicious code injected into a database query (SQL Injection).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>28</t>
                            </td>
                            <td>
                                <t>Cyber.Application.XSSPayload</t>
                            </td>
                            <td>
                                <t>The script injected into a webpage to steal data or redirect users.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>29</t>
                            </td>
                            <td>
                                <t>Cyber.Cloud.APIToken</t>
                            </td>
                            <td>
                                <t>A compromised key used to access cloud resources (AWS, Azure) or SaaS platforms.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>30</t>
                            </td>
                            <td>
                                <t>Cyber.Cloud.BucketName</t>
                            </td>
                            <td>
                                <t>The specific cloud storage location where data was stored or exfiltrated from.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>31</t>
                            </td>
                            <td>
                                <t>Cyber.Cloud.CloudResourceID</t>
                            </td>
                            <td>
                                <t>The unique ID of the compromised virtual machine or database.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>32</t>
                            </td>
                            <td>
                                <t>Cyber.Cloud.OAuthApp</t>
                            </td>
                            <td>
                                <t>A malicious third-party app granted permissions to a user's data.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>33</t>
                            </td>
                            <td>
                                <t>Cyber.Email.EmailAuthResult</t>
                            </td>
                            <td>
                                <t>The authentication result showing if the email passed security checks.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>34</t>
                            </td>
                            <td>
                                <t>Cyber.Email.MessageID</t>
                            </td>
                            <td>
                                <t>A unique identifier for the email used to track it across mail servers.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>35</t>
                            </td>
                            <td>
                                <t>Cyber.Email.RecipientEmail</t>
                            </td>
                            <td>
                                <t>The target email address of the attack.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>36</t>
                            </td>
                            <td>
                                <t>Cyber.Email.ReplyToEmail</t>
                            </td>
                            <td>
                                <t>The address where replies go; often different from the sender for tracking.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>37</t>
                            </td>
                            <td>
                                <t>Cyber.Email.ReturnPath</t>
                            </td>
                            <td>
                                <t>The address where non-delivery receipts go; used in spoofing analysis.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>38</t>
                            </td>
                            <td>
                                <t>Cyber.Email.SenderEmail</t>
                            </td>
                            <td>
                                <t>The "From" address used in a phishing campaign.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>39</t>
                            </td>
                            <td>
                                <t>Cyber.Email.XOrigIP</t>
                            </td>
                            <td>
                                <t>The original IP address of the sender (if recorded by the mail server).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>40</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.CmdLine</t>
                            </td>
                            <td>
                                <t>The exact command line used to execute the malware; often reveals attacker intent.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>41</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.DLL</t>
                            </td>
                            <td>
                                <t>The name of a malicious library loaded into a legitimate process (DLL Sideloading).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>42</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.FileHash</t>
                            </td>
                            <td>
                                <t>The cryptographic fingerprint of the malicious file (SHA256, MD5).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>43</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.FilePath</t>
                            </td>
                            <td>
                                <t>The location on the file system where the malware resides.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>44</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.MemoryArtifact</t>
                            </td>
                            <td>
                                <t>Code or processes that exist only in RAM (volatile memory) and not on disk.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>45</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.PID</t>
                            </td>
                            <td>
                                <t>The unique identifier of the malicious process at the time of analysis.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>46</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.ProcessName</t>
                            </td>
                            <td>
                                <t>The name of the malicious executable file running on the endpoint.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>47</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.RegistryKey</t>
                            </td>
                            <td>
                                <t>The Windows Registry path used for persistence or configuration changes.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>48</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.ScheduledTask</t>
                            </td>
                            <td>
                                <t>The name of a task created by the attacker for persistence or execution.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>49</t>
                            </td>
                            <td>
                                <t>Cyber.Endpoint.ServiceName</t>
                            </td>
                            <td>
                                <t>The name of a malicious service installed to run the malware.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>50</t>
                            </td>
                            <td>
                                <t>Cyber.Forensics.NetFlow</t>
                            </td>
                            <td>
                                <t>Metadata about the connection (who talked to whom, when, and data volume).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>51</t>
                            </td>
                            <td>
                                <t>Cyber.Forensics.PacketPayload</t>
                            </td>
                            <td>
                                <t>The raw data being transmitted containing passwords or exfiltrated data.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>52</t>
                            </td>
                            <td>
                                <t>Cyber.Hardware.DeviceSerial</t>
                            </td>
                            <td>
                                <t>The unique identifier of a specific compromised laptop or mobile device.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>53</t>
                            </td>
                            <td>
                                <t>Cyber.Hardware.USBDeviceID</t>
                            </td>
                            <td>
                                <t>The specific make/model/serial of a USB drive used to introduce malware.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>54</t>
                            </td>
                            <td>
                                <t>Cyber.Identity.LoginTimestamp</t>
                            </td>
                            <td>
                                <t>The specific time of an unusual login (e.g., 3:00 AM from a foreign location).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>55</t>
                            </td>
                            <td>
                                <t>Cyber.Identity.Username</t>
                            </td>
                            <td>
                                <t>The specific user account that was compromised or used for lateral movement.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>56</t>
                            </td>
                            <td>
                                <t>Cyber.Network.IPv4</t>
                            </td>
                            <td>
                                <t>The source IP of an attacker, a Command &amp; Control (C2) server, or a malicious scan.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>57</t>
                            </td>
                            <td>
                                <t>Cyber.Network.IPv6</t>
                            </td>
                            <td>
                                <t>The source IP in IPv6 format; increasingly used to bypass IPv4-based allowlists.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>58</t>
                            </td>
                            <td>
                                <t>Cyber.Network.MAC</t>
                            </td>
                            <td>
                                <t>The physical device identifier on a local network; useful if the attacker is on-site.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>59</t>
                            </td>
                            <td>
                                <t>Cyber.Network.Port</t>
                            </td>
                            <td>
                                <t>The specific source or destination port used (e.g., 445 for ransomware spreading).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>60</t>
                            </td>
                            <td>
                                <t>Cyber.Network.Protocol</t>
                            </td>
                            <td>
                                <t>The network protocol used; anomalous use may indicate tunneling (e.g., DNS tunneling).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>61</t>
                            </td>
                            <td>
                                <t>Cyber.Web.Domain</t>
                            </td>
                            <td>
                                <t>The domain hosting malware or Command &amp; Control infrastructure (e.g., evil.com).</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>62</t>
                            </td>
                            <td>
                                <t>Cyber.Web.HTTPMethod</t>
                            </td>
                            <td>
                                <t>Unusual HTTP methods like PUT or DELETE used to manipulate data.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>63</t>
                            </td>
                            <td>
                                <t>Cyber.Web.ReferrerHeader</t>
                            </td>
                            <td>
                                <t>The page the user was on before clicking the malicious link.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>64</t>
                            </td>
                            <td>
                                <t>Cyber.Web.SessionID</t>
                            </td>
                            <td>
                                <t>A hijacked session token used to impersonate a user without a password.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>65</t>
                            </td>
                            <td>
                                <t>Cyber.Web.URIPath</t>
                            </td>
                            <td>
                                <t>The specific directory or file requested on the web server.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>66</t>
                            </td>
                            <td>
                                <t>Cyber.Web.URL</t>
                            </td>
                            <td>
                                <t>The full malicious link pointing to a payload or phishing page.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>67</t>
                            </td>
                            <td>
                                <t>Cyber.Web.UserAgent</t>
                            </td>
                            <td>
                                <t>The browser or application signature used by the attacker when connecting.</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>68</t>
                            </td>
                            <td>
                                <t>ElectroMag.Infrared.GasLeakIR</t>
                            </td>
                            <td>
                                <t>Gas leaks (specific gases absorb specific IR wavelengths)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>69</t>
                            </td>
                            <td>
                                <t>ElectroMag.Infrared.HeatTemp</t>
                            </td>
                            <td>
                                <t>Heat (temperature of objects)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>70</t>
                            </td>
                            <td>
                                <t>ElectroMag.Infrared.MoistureContent</t>
                            </td>
                            <td>
                                <t>Moisture content (in materials)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>71</t>
                            </td>
                            <td>
                                <t>ElectroMag.Infrared.ThermalGradient</t>
                            </td>
                            <td>
                                <t>Thermal gradients (heat loss in buildings)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>72</t>
                            </td>
                            <td>
                                <t>ElectroMag.Infrared.WarmBody</t>
                            </td>
                            <td>
                                <t>Warm bodies (humans, animals) via Passive Infrared (PIR)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>73</t>
                            </td>
                            <td>
                                <t>ElectroMag.Ultraviolet.BioContamUV</t>
                            </td>
                            <td>
                                <t>Biological contamination</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>74</t>
                            </td>
                            <td>
                                <t>ElectroMag.Ultraviolet.CoronaArc</t>
                            </td>
                            <td>
                                <t>Corona discharge (electrical arcing)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>75</t>
                            </td>
                            <td>
                                <t>ElectroMag.Ultraviolet.FlameUV</t>
                            </td>
                            <td>
                                <t>Flames (fire detection)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>76</t>
                            </td>
                            <td>
                                <t>ElectroMag.Ultraviolet.ForgeryUV</t>
                            </td>
                            <td>
                                <t>Forgery (detecting UV security features on documents)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>77</t>
                            </td>
                            <td>
                                <t>ElectroMag.Light.BiometricEye</t>
                            </td>
                            <td>
                                <t>Biological signatures (retinas, irises) - Failed recognition indicates intrusion attempt</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>78</t>
                            </td>
                            <td>
                                <t>ElectroMag.Light.EdgesShapes</t>
                            </td>
                            <td>
                                <t>Edges and shapes (for machine vision)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>79</t>
                            </td>
                            <td>
                                <t>ElectroMag.Light.Flicker</t>
                            </td>
                            <td>
                                <t>Flicker (from faulty lighting or machinery)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>80</t>
                            </td>
                            <td>
                                <t>ElectroMag.Light.LightColor</t>
                            </td>
                            <td>
                                <t>Color and wavelength (spectral content)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>81</t>
                            </td>
                            <td>
                                <t>ElectroMag.Light.LightPresence</t>
                            </td>
                            <td>
                                <t>Presence of light (ambient brightness)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>82</t>
                            </td>
                            <td>
                                <t>ElectroMag.Light.MotionOptical</t>
                            </td>
                            <td>
                                <t>Motion (optical flow, changes in pixel arrays)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>83</t>
                            </td>
                            <td>
                                <t>ElectroMag.Light.ObjectsGeneric</t>
                            </td>
                            <td>
                                <t>Specific objects (via computer vision: faces, vehicles, text, barcodes)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>84</t>
                            </td>
                            <td>
                                <t>Force.Atmospheric.Altitude</t>
                            </td>
                            <td>
                                <t>Altitude (in aircraft)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>85</t>
                            </td>
                            <td>
                                <t>Force.Atmospheric.BaroPress</t>
                            </td>
                            <td>
                                <t>Barometric pressure (weather changes)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>86</t>
                            </td>
                            <td>
                                <t>Force.Atmospheric.VacuumLevel</t>
                            </td>
                            <td>
                                <t>Vacuum levels (in manufacturing)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>87</t>
                            </td>
                            <td>
                                <t>Force.Fluid.Airflow</t>
                            </td>
                            <td>
                                <t>Airflow (differential pressure)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>88</t>
                            </td>
                            <td>
                                <t>Force.Fluid.WaterPressure</t>
                            </td>
                            <td>
                                <t>Water pressure (for leak detection via pressure drop)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>89</t>
                            </td>
                            <td>
                                <t>Force.Touch.GripStrength</t>
                            </td>
                            <td>
                                <t>Grip strength</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>90</t>
                            </td>
                            <td>
                                <t>Force.Touch.PhysicalContact</t>
                            </td>
                            <td>
                                <t>Physical contact (bumpers on robots, touch screens)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>91</t>
                            </td>
                            <td>
                                <t>Force.Touch.TirePressure</t>
                            </td>
                            <td>
                                <t>Tire pressure</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>92</t>
                            </td>
                            <td>
                                <t>Force.Touch.Weight</t>
                            </td>
                            <td>
                                <t>Weight (scales, load cells)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>93</t>
                            </td>
                            <td>
                                <t>Radiation.General.Alpha</t>
                            </td>
                            <td>
                                <t>Alpha particles</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>94</t>
                            </td>
                            <td>
                                <t>Radiation.General.Beta</t>
                            </td>
                            <td>
                                <t>Beta particles</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>95</t>
                            </td>
                            <td>
                                <t>Radiation.General.Cosmic</t>
                            </td>
                            <td>
                                <t>Cosmic rays</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>96</t>
                            </td>
                            <td>
                                <t>Radiation.General.Gamma</t>
                            </td>
                            <td>
                                <t>Gamma rays</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>97</t>
                            </td>
                            <td>
                                <t>Radiation.General.Neutron</t>
                            </td>
                            <td>
                                <t>Neutron radiation</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>98</t>
                            </td>
                            <td>
                                <t>Radiation.General.RadonDecay</t>
                            </td>
                            <td>
                                <t>Radon gas (decay products)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>99</t>
                            </td>
                            <td>
                                <t>Radiation.General.Xray</t>
                            </td>
                            <td>
                                <t>X-rays</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>100</t>
                            </td>
                            <td>
                                <t>Magnetic.General.CurrentFlow</t>
                            </td>
                            <td>
                                <t>Current flow (Hall effect sensors, clamp meters)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>101</t>
                            </td>
                            <td>
                                <t>Magnetic.General.ESD</t>
                            </td>
                            <td>
                                <t>Electrostatic discharge</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>102</t>
                            </td>
                            <td>
                                <t>Magnetic.General.Ferrous</t>
                            </td>
                            <td>
                                <t>Ferrous metals (via magnetic disturbance)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>103</t>
                            </td>
                            <td>
                                <t>Magnetic.General.MagneticAnomaly</t>
                            </td>
                            <td>
                                <t>Magnetic anomalies (submarines, buried structures)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>104</t>
                            </td>
                            <td>
                                <t>Magnetic.General.Orientation</t>
                            </td>
                            <td>
                                <t>Orientation (Compass / Magnetometer - detecting Earth's magnetic field)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>105</t>
                            </td>
                            <td>
                                <t>Magnetic.General.Powerline</t>
                            </td>
                            <td>
                                <t>Power lines (AC magnetic fields)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>106</t>
                            </td>
                            <td>
                                <t>Magnetic.General.Voltage</t>
                            </td>
                            <td>
                                <t>Voltage (non-contact voltage testers)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>107</t>
                            </td>
                            <td>
                                <t>Object.Indoor.Container</t>
                            </td>
                            <td>
                                <t>Bottles / Cups / Cutlery</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>108</t>
                            </td>
                            <td>
                                <t>Object.Indoor.Document</t>
                            </td>
                            <td>
                                <t>Books / Papers / Documents</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>109</t>
                            </td>
                            <td>
                                <t>Object.Indoor.Electronics</t>
                            </td>
                            <td>
                                <t>Electronics (laptops / phones / TVs)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>110</t>
                            </td>
                            <td>
                                <t>Object.Indoor.Furniture</t>
                            </td>
                            <td>
                                <t>Furniture (chairs / tables / sofas)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>111</t>
                            </td>
                            <td>
                                <t>Object.Indoor.Weapon</t>
                            </td>
                            <td>
                                <t>Weapons (guns / knives)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>112</t>
                            </td>
                            <td>
                                <t>Object.LivingBeings.Animal</t>
                            </td>
                            <td>
                                <t>Animals (general wildlife/livestock/pets)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>113</t>
                            </td>
                            <td>
                                <t>Object.LivingBeings.BodyPose</t>
                            </td>
                            <td>
                                <t>Pose (skeleton keypoints / body position)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>114</t>
                            </td>
                            <td>
                                <t>Object.LivingBeings.EyeGaze</t>
                            </td>
                            <td>
                                <t>Eyes (gaze tracking / eye blink)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>115</t>
                            </td>
                            <td>
                                <t>Object.LivingBeings.Face</t>
                            </td>
                            <td>
                                <t>Faces (facial recognition)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>116</t>
                            </td>
                            <td>
                                <t>Object.LivingBeings.HandGesture</t>
                            </td>
                            <td>
                                <t>Hands (hand gestures / raising hand)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>117</t>
                            </td>
                            <td>
                                <t>Object.LivingBeings.Human</t>
                            </td>
                            <td>
                                <t>Humans (person/people detection)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>118</t>
                            </td>
                            <td>
                                <t>Object.Outdoor.Building</t>
                            </td>
                            <td>
                                <t>Buildings / Houses</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>119</t>
                            </td>
                            <td>
                                <t>Object.Outdoor.Pothole</t>
                            </td>
                            <td>
                                <t>Potholes / Road cracks</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>120</t>
                            </td>
                            <td>
                                <t>Object.Outdoor.RoadSign</t>
                            </td>
                            <td>
                                <t>Road signs / Traffic lights</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>121</t>
                            </td>
                            <td>
                                <t>Object.Outdoor.Vegetation</t>
                            </td>
                            <td>
                                <t>Trees / Plants / Vegetation</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>122</t>
                            </td>
                            <td>
                                <t>Object.SpecificScenes.FireVisual</t>
                            </td>
                            <td>
                                <t>Fire / Flames (visual spectrum)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>123</t>
                            </td>
                            <td>
                                <t>Object.SpecificScenes.Flood</t>
                            </td>
                            <td>
                                <t>Flooding / Water accumulation</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>124</t>
                            </td>
                            <td>
                                <t>Object.SpecificScenes.SmokeVisual</t>
                            </td>
                            <td>
                                <t>Smoke plume (visual spectrum)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>125</t>
                            </td>
                            <td>
                                <t>Object.SpecificScenes.Snow</t>
                            </td>
                            <td>
                                <t>Snow coverage</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>126</t>
                            </td>
                            <td>
                                <t>Object.Vehicles.Aircraft</t>
                            </td>
                            <td>
                                <t>Aircraft (drones / planes / helicopters)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>127</t>
                            </td>
                            <td>
                                <t>Object.Vehicles.Boat</t>
                            </td>
                            <td>
                                <t>Boats / Ships</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>128</t>
                            </td>
                            <td>
                                <t>Object.Vehicles.Bus</t>
                            </td>
                            <td>
                                <t>Buses</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>129</t>
                            </td>
                            <td>
                                <t>Object.Vehicles.Car</t>
                            </td>
                            <td>
                                <t>Cars / Automobiles</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>130</t>
                            </td>
                            <td>
                                <t>Object.Vehicles.LicensePlate</t>
                            </td>
                            <td>
                                <t>License plates (Automatic Number Plate Recognition - ANPR)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>131</t>
                            </td>
                            <td>
                                <t>Object.Vehicles.Moto</t>
                            </td>
                            <td>
                                <t>Motorcycles / Bicycles</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>132</t>
                            </td>
                            <td>
                                <t>Object.Vehicles.Truck</t>
                            </td>
                            <td>
                                <t>Trucks</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>133</t>
                            </td>
                            <td>
                                <t>Particulate.Aerosols.Bioaerosol</t>
                            </td>
                            <td>
                                <t>Viral or bacterial particles (bio-aerosol detectors)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>134</t>
                            </td>
                            <td>
                                <t>Particulate.Aerosols.Dust</t>
                            </td>
                            <td>
                                <t>Airborne dust (particulate counters)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>135</t>
                            </td>
                            <td>
                                <t>Particulate.Aerosols.Pollen</t>
                            </td>
                            <td>
                                <t>Pollen and allergens</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>136</t>
                            </td>
                            <td>
                                <t>Particulate.Aerosols.SmokeIonization</t>
                            </td>
                            <td>
                                <t>Combustion particles (Ionization smoke detectors)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>137</t>
                            </td>
                            <td>
                                <t>Particulate.Aerosols.SmokePhotoelectric</t>
                            </td>
                            <td>
                                <t>Visible smoke obscuration (Photoelectric smoke detectors)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>138</t>
                            </td>
                            <td>
                                <t>Particulate.Liquids.ChemicalSpill</t>
                            </td>
                            <td>
                                <t>Chemical spills (specific conductivity or pH changes)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>139</t>
                            </td>
                            <td>
                                <t>Particulate.Liquids.FuelSheen</t>
                            </td>
                            <td>
                                <t>Fuel/Oil sheen on water</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>140</t>
                            </td>
                            <td>
                                <t>Particulate.Liquids.LiquidLevel</t>
                            </td>
                            <td>
                                <t>Level of liquid in a tank (ultrasonic, capacitive, float)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>141</t>
                            </td>
                            <td>
                                <t>Particulate.Liquids.WaterLeak</t>
                            </td>
                            <td>
                                <t>Water leakage (conductivity or float switches)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>142</t>
                            </td>
                            <td>
                                <t>Particulate.Solids.DensityChange</t>
                            </td>
                            <td>
                                <t>Density changes (in manufacturing)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>143</t>
                            </td>
                            <td>
                                <t>Particulate.Solids.ForeignObject</t>
                            </td>
                            <td>
                                <t>Foreign objects in food (X-ray machines)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>144</t>
                            </td>
                            <td>
                                <t>Particulate.Solids.GrainFlow</t>
                            </td>
                            <td>
                                <t>Grain flow (in agriculture)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>145</t>
                            </td>
                            <td>
                                <t>Particulate.Solids.Landmine</t>
                            </td>
                            <td>
                                <t>Landmines/UXO (Ground Penetrating Radar)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>146</t>
                            </td>
                            <td>
                                <t>Particulate.Solids.Metal</t>
                            </td>
                            <td>
                                <t>Metal (Metal detectors via eddy currents)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>147</t>
                            </td>
                            <td>
                                <t>Software.Detected.Crowd</t>
                            </td>
                            <td>
                                <t>Crowd formation</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>148</t>
                            </td>
                            <td>
                                <t>Software.Detected.CyberAttack</t>
                            </td>
                            <td>
                                <t>Cyber-attack (Anomalous network traffic patterns)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>149</t>
                            </td>
                            <td>
                                <t>Software.Detected.Drowsiness</t>
                            </td>
                            <td>
                                <t>Drowsiness (Eye closure detection via camera)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>150</t>
                            </td>
                            <td>
                                <t>Software.Detected.Explosion</t>
                            </td>
                            <td>
                                <t>Explosion (Sudden light flash + pressure wave + sound)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>151</t>
                            </td>
                            <td>
                                <t>Software.Detected.FailedBiometric</t>
                            </td>
                            <td>
                                <t>Failed retina/iris scan (multiple failures may indicate intrusion)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>152</t>
                            </td>
                            <td>
                                <t>Software.Detected.FireFusion</t>
                            </td>
                            <td>
                                <t>Fire (Combination of smoke, heat, and flicker)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>153</t>
                            </td>
                            <td>
                                <t>Software.Detected.Intrusion</t>
                            </td>
                            <td>
                                <t>Intrusion (Crossing a virtual line)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>154</t>
                            </td>
                            <td>
                                <t>Software.Detected.Loitering</t>
                            </td>
                            <td>
                                <t>Loitering (Person staying too long)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>155</t>
                            </td>
                            <td>
                                <t>Software.Detected.Tailgating</t>
                            </td>
                            <td>
                                <t>Tailgating (Following someone through a door)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>156</t>
                            </td>
                            <td>
                                <t>ext-value</t>
                            </td>
                            <td>
                                <t>A value used to indicate that this attribute is extended and the actual value is provided using the corresponding ext-* attribute. (see <xref target="private-extension-enum"/>)</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
      </section>
      <section>
        <name>Target Category</name>
        <table anchor="id26"><name>Target Categories</name>
                
                <thead>
                        <tr>
                            <th>
                                <t>Rank</t>
                            </th>
                            <th>
                                <t>Keyword</t>
                            </th>
                            <th>
                                <t>Description</t>
                            </th>
                        </tr>
                    </thead><tbody>
                        <tr>
                            <td>
                                <t>0</t>
                            </td>
                            <td>
                                <t>Undetermined</t>
                            </td>
                            <td>
                                <t>Target Category is undetermined</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>1</t>
                            </td>
                            <td>
                                <t>Commercial.ClientBase</t>
                            </td>
                            <td>
                                <t>Client portfolio, active contracts</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>2</t>
                            </td>
                            <td>
                                <t>Commercial.Partnerships</t>
                            </td>
                            <td>
                                <t>Strategic alliances, partner networks</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>3</t>
                            </td>
                            <td>
                                <t>Commercial.Reputation</t>
                            </td>
                            <td>
                                <t>Brand image, online reputation, goodwill</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>4</t>
                            </td>
                            <td>
                                <t>Financial.Cash</t>
                            </td>
                            <td>
                                <t>Liquidities, bank accounts</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>5</t>
                            </td>
                            <td>
                                <t>Financial.Investments</t>
                            </td>
                            <td>
                                <t>Shares, bonds, holdings in subsidiaries</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>6</t>
                            </td>
                            <td>
                                <t>Financial.Receivables</t>
                            </td>
                            <td>
                                <t>Customer receivables, promissory notes</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>7</t>
                            </td>
                            <td>
                                <t>Furniture.Fittings</t>
                            </td>
                            <td>
                                <t>Lighting, partitions, flooring</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>8</t>
                            </td>
                            <td>
                                <t>Furniture.HVAC</t>
                            </td>
                            <td>
                                <t>Air conditioning, heating systems (non-industrial)</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>9</t>
                            </td>
                            <td>
                                <t>Furniture.OfficeFurniture</t>
                            </td>
                            <td>
                                <t>Desks, chairs, filing cabinets</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>10</t>
                            </td>
                            <td>
                                <t>Human.EmployerBrand</t>
                            </td>
                            <td>
                                <t>Employment contracts, recruitment appeal</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>11</t>
                            </td>
                            <td>
                                <t>Human.Organization</t>
                            </td>
                            <td>
                                <t>Work processes, internal know-how</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>12</t>
                            </td>
                            <td>
                                <t>Human.Skills</t>
                            </td>
                            <td>
                                <t>Employee expertise, team competencies</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>13</t>
                            </td>
                            <td>
                                <t>Infrastructure.CivilWorks</t>
                            </td>
                            <td>
                                <t>Bridges, loading docks, quays</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>14</t>
                            </td>
                            <td>
                                <t>Infrastructure.Foundations</t>
                            </td>
                            <td>
                                <t>Special foundations, internal roads, pavements</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>15</t>
                            </td>
                            <td>
                                <t>Infrastructure.Networks</t>
                            </td>
                            <td>
                                <t>Buried water, gas, electricity, fiber networks</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>16</t>
                            </td>
                            <td>
                                <t>IP.Copyrights</t>
                            </td>
                            <td>
                                <t>Software code, manuals, artistic works</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>17</t>
                            </td>
                            <td>
                                <t>IP.Patents</t>
                            </td>
                            <td>
                                <t>Registered patents, inventions</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>18</t>
                            </td>
                            <td>
                                <t>IP.Trademarks</t>
                            </td>
                            <td>
                                <t>Brand names, logos, registered designs</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>19</t>
                            </td>
                            <td>
                                <t>IT.Endpoints</t>
                            </td>
                            <td>
                                <t>Computers, printers, scanners</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>20</t>
                            </td>
                            <td>
                                <t>IT.Hardware</t>
                            </td>
                            <td>
                                <t>Servers, storage arrays, cabling</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>21</t>
                            </td>
                            <td>
                                <t>IT.Telecom</t>
                            </td>
                            <td>
                                <t>WiFi access points, phones, smartphones</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>22</t>
                            </td>
                            <td>
                                <t>Logistics.Containers</t>
                            </td>
                            <td>
                                <t>Containers, trailers, wagons</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>23</t>
                            </td>
                            <td>
                                <t>Logistics.SpecialVehicles</t>
                            </td>
                            <td>
                                <t>Mobile cranes, aerial work platforms</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>24</t>
                            </td>
                            <td>
                                <t>Logistics.Vehicles</t>
                            </td>
                            <td>
                                <t>Cars, trucks, forklifts</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>25</t>
                            </td>
                            <td>
                                <t>Marketing.Content</t>
                            </td>
                            <td>
                                <t>Market studies, ad campaigns, social media</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>26</t>
                            </td>
                            <td>
                                <t>Marketing.Domains</t>
                            </td>
                            <td>
                                <t>Website URLs, domain names</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>27</t>
                            </td>
                            <td>
                                <t>Marketing.Identity</t>
                            </td>
                            <td>
                                <t>Visual identity, logo, brand guidelines</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>28</t>
                            </td>
                            <td>
                                <t>Production.HeavyEquipment</t>
                            </td>
                            <td>
                                <t>Presses, furnaces, compressors, generators</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>29</t>
                            </td>
                            <td>
                                <t>Production.Machinery</t>
                            </td>
                            <td>
                                <t>Assembly lines, industrial robots, conveyors</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>30</t>
                            </td>
                            <td>
                                <t>Production.MachineTools</t>
                            </td>
                            <td>
                                <t>Lathes, milling machines, industrial 3D printers</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>31</t>
                            </td>
                            <td>
                                <t>RealEstate.Buildings</t>
                            </td>
                            <td>
                                <t>Factories, warehouses, offices, commercial premises</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>32</t>
                            </td>
                            <td>
                                <t>RealEstate.Land</t>
                            </td>
                            <td>
                                <t>Unbuilt land, forests, or agricultural grounds</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>33</t>
                            </td>
                            <td>
                                <t>RealEstate.SpecialStructures</t>
                            </td>
                            <td>
                                <t>Hangars, silos, parking lots</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>34</t>
                            </td>
                            <td>
                                <t>Software.Applications</t>
                            </td>
                            <td>
                                <t>ERP, CRM, SaaS platforms</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>35</t>
                            </td>
                            <td>
                                <t>Software.Data</t>
                            </td>
                            <td>
                                <t>Customer databases, supplier lists, prospects</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>36</t>
                            </td>
                            <td>
                                <t>Software.Licenses</t>
                            </td>
                            <td>
                                <t>Software usage rights, subscriptions</t>
                            </td>
                        </tr>
                        <tr>
                            <td>
                                <t>37</t>
                            </td>
                            <td>
                                <t>ext-value</t>
                            </td>
                            <td>
                                <t>A value used to indicate that this attribute is extended and the actual value is provided using the corresponding ext-* attribute. (see <xref target="private-extension-enum"/>)</t>
                            </td>
                        </tr>
                    </tbody>
            </table>
      </section>
    </section>
    <section>
      <name>Examples</name>
      <t>This section contains several examples of events/incidents which may be
            described using the IDMEF Data Model defined in.</t>
      <t>For each example, the serialization method listed in Section 5 was used on the
            original IDMEF message to produce a JSON representation.</t>
      <section>
        <name>Physical intrusion</name>
        <t>Listing 1 describes an incident where an unidentified man was detected on
                company premises near the building where server room A is located.</t>
        <sourcecode type="none">{
  "Version": "2.D.V07",
  "ID": "819df7bc-35ef-40d8-bbee-1901117370b1",
  "Description": "Potential intruder detected",
  "Type": "Physical",
  "Priority": "Low",
  "Status": "Incident",
  "Cause": "Malicious",
  "CreateTime": "2021-05-10T16:52:13.075994+00:00",
  "StartTime": "2021-05-10T16:52:13+00:00",
  "Category": [
    "Access.Forced"
  ],
  "Analyzer": {
    "Name": "BigBrother",
    "Hostname": "bb.acme.com",
    "Model": "Big Brother v42",
    "Category": [
      "PHY.HAR",
      "FRC.FR-CAM"
    ],
    "Data": [
      "Images"
    ],
    "Method": [
      "Movement",
      "Biometric",
      "AI"
    ],
    "IP": "192.0.2.1"
  },
  "Sensor": [
    {
      "IP": "192.0.2.2",
      "Name": "Camera #23",
      "Model": "SuperDuper Camera v1",
      "Location": "Hallway to server room A1"
    }
  ],
  "Source": [
    {
      "Note": "Black Organization, aka. APT 4869"
    }
  ],
  "Attachment": [
    {
      "Name": "wanted",
      "FileName": "fbi-wanted-poster.jpg",
      "Size": 1234567,
      "Ref": ["https://www.fbi.gov/wanted/topten"],
      "ContentType": "image/jpg",
      "ContentEncoding": "base64",
      "Content": "..."
    },
    {
      "Name": "pic01",
      "Note": "Hi-res picture showing John Doe near server room A1",
      "ExternalURI": ["ftps://192.0.2.1/cam23/20210510165211.jpg"],
      "ContentType": "image/jpg"
    }
  ]
}</sourcecode>
      </section>
      <section>
        <name>Cyberattack</name>
        <t>Listing 2 describes an incident related to a potential bruteforce attack
                against the "root" user account of the server at 192.0.2.2 and 2001:db8::/32.</t>
        <sourcecode type="none">{
  "Version": "2.D.V07",
  "ID": "819df7bc-35ef-40d8-bbee-1901117370b2",
  "Description": "Potential bruteforce attack on root user account",
  "Type": "Cyber",
  "Priority": "Medium",
  "CreateTime": "2021-05-10T16:55:29.196408+00:00",
  "StartTime": "2021-05-10T16:55:29+00:00",
  "Category": [
    "Access.Forced"
  ],
  "Analyzer": {
    "Name": "SIEM",
    "Hostname": "siem.acme.com",
    "Model": "Concerto SIEM 5.2",
    "Category": [
      "SIEM.SIEM",
      "SIEM.LOG"
    ],
    "Data": [
      "Log"
    ],
    "Method": [
      "Monitor",
      "Signature"
    ],
    "IP": "192.0.2.1"
  },
  "Sensor": [
    {
      "IP": "192.0.2.5",
      "Name": "syslog",
      "Hostname": "www.acme.com",
      "Model": "rsyslog 8.2110",
      "Location": "Server room A1, rack 10"
    }
  ],
  "Target": [
    {
      "IP": "192.0.2.2",
      "Hostname": "www.acme.com",
      "Location": "Server room A1, rack 10",
      "User": "root"
    },
    {
      "IP": "2001:db8::/32",
      "Hostname": "www.acme.com",
      "Location": "Server room A1, rack 10",
      "User": "root"
    }
  ]
}</sourcecode>
      </section>
      <section>
        <name>Server outage</name>
        <t>Listing 3 describes an incident where the webserver at "www.example.com"
                encountered some kind of failure condition resulting in an outage.</t>
        <sourcecode type="none">{
  "Version": "2.D.V07",
  "ID": "819df7bc-35ef-40d8-bbee-1901117370b3",
  "Description": "A server did not reply to an ICMP ping request",
  "Type": "Availability",
  "Priority": "Medium",
  "Status": "Incident",
  "Cause": "Unknown",
  "CreateTime": "2021-05-10T16:59:11.875209+00:00",
  "StartTime": "2021-05-10T16:59:11.875209+00:00",
  "Category": [
    "Availability.Outage"
  ],
  "Analyzer": {
    "Name": "NMS",
    "Hostname": "nms.example.com",
    "Model": "Concerto NMS 5.2",
    "Category": [
      "SIEM.NMS"
    ],
    "Data": [
      "Network"
    ],
    "Method": [
      "Monitor"
    ],
    "IP": "192.0.2.1"
  },
  "Target": [
    {
      "IP": "192.168.1.2",
      "Hostname": "www.acme.com",
      "Service": "website",
      "Location": "Server room A1, rack 10"
    }
  ]
}</sourcecode>
      </section>
      <section>
        <name>Combined incident</name>
        <t>Listing 4 describes a combined incident resulting from the correlation of the
                previous physical, cyber and availability incidents.</t>
        <sourcecode type="none">{
  "Version": "2.D.V07",
  "ID": "819df7bc-35ef-40d8-bbee-1901117370b4",
  "Description": "Intrusion and Sabotage detected",
  "Type": "Combined",
  "Priority": "High",
  "Status": "Incident",
  "Cause": "Malicious",
  "CreateTime": "2021-05-10T16:59:15.075994+00:00",
  "StartTime": "2021-05-10T16:52:11+00:00",
  "Category": [
    "Access.Unauthorized",
    "Sabotage.Data",
  ,
  "CorrelID": [
    "819df7bc-35ef-40d8-bbee-1901117370b1",
    "819df7bc-35ef-40d8-bbee-1901117370b2",
    "819df7bc-35ef-40d8-bbee-1901117370b3"
  ],
  "Analyzer": {
    "Name": "Correlator",
    "Hostname": "correlator.acme.com",
    "Model": "Concerto Hybrid Correlator v5.2",
    "Category": [
    ],
    "Data": [
      "Alert"
    ],
    "Method": [
      "Correlation"
    ],
    "IP": "192.0.2.1"
  },
  "Source": [
    {
      "Note": "Black Organization, aka. APT 4869"
    }
  ],
  "Target": [
    {
      "Location": "Server room A1"
    },
    {
      "IP": "192.0.2.2",
      "Hostname": "www.acme.com",
      "User": "root"
    },
    {
      "IP": "192.0.2.2",
      "Hostname": "www.acme.com",
      "Service": "website"
    }
  ]
}</sourcecode>
      </section>
      <section>
        <name>Hazard incident</name>
        <t>Listing 5 describes a heavy snow storm announced in 48h on Paris and Versailles.</t>
        <sourcecode type="none">{
  "Version": "2.D.V07",
  "ID": "819df7bc-35ef-40d8-bbee-1901117370b1",
  "Description": "Snow storm forecast",
  "Priority": "Low",
  "Status": "Incident",
  "Cause": "Hazard",
  "Confidence": 0.8,
  "CreateTime": "2021-05-10T16:52:13.075994+00:00",
  "StartTime": "2021-05-12T10:00:00+00:00",
  "EndTime": "2021-05-12T10:00:00+00:00",
  "Type": ["Physical"],
  "Category": [
    "Meteo.Snow",
    "Meteo.Wind",
    "Meteo.Cold"
  ],
  "Analyzer": {
    "Name": "Weather Monitor",
    "Hostname": "weather.acme.com",
    "IP": "192.0.2.1"
  },
  "Source": [
    {
      "Note": "Heavy snow storm coming from North"
    }
  ],
  "Target": [
    {
      "GeoLocation": "48.8584,2.2945",
      "UnLocation": "FR PAR",
      "Location": "Acme Paris Site"
    },
    {
      "GeoLocation": "48.8019,2.1301",
      "UnLocation": "FR VER",
      "Location": "Acme Versailles Site"
    }
  ]
}</sourcecode>
      </section>
    </section>
    <section>
      <name>JSON Validation Schema (Non-normative)</name>
      <t>Listing 5 contains a JSON Schema that can be used to validate incoming IDMEF
            messages prior to processing. Please note that extraneous linebreaks have been
            included due to formatting constraints.</t>
      <sourcecode type="none">{
    "description": "JSON schema for the Intrusion Detection Message Exchange Format (IDMEF) version 2 (revision 2.D.V09)",
    "properties": {
        "Version": {
            "description": "The version of the IDMEF format in use by this alert. During the drafts tuning period the version is equal to the draft version. Therefore it is \"2.D.V0X\" for Draft V0X.",
            "enum": [
                "2.D.V09"
            ]
        },
        "ID": {
            "description": "Unique identifier for the alert.",
            "$ref": "#/definitions/uuidType"
        },
        "OrganisationName": {
            "description": "Corporate/Main Office Organisation Name Useful if alerts are sent to a multi-organisation central incident detection manager. Example: ACME Corporation",
            "type": "string"
        },
        "OrganisationId": {
            "description": "Corporate/Main Office Organisation ID. Where possible official organisation ID manage by national authority. Useful if alerts are sent to a multi-organisation central incident detection manager. This ID has to be chosen depending on the overall detection perimeter and the nature of the monitored organisation (Private/Public, Commercial, International, etc.) Examples: OrganisationId in France could be SIREN, in England could be CR, Germany could be Handelsregisternummer, Spain could be CIF, Italia could be Partita IVA, USA could be EIN, etc. Commercial OrganisationId in Europe could be V.A.T ID",
            "type": "string"
        },
        "EntityName": {
            "description": "Entity Name, monitored by the organisation, where the incident occurred. Could be a town, region or country name or an internal name. Could also be the name of a customer for a MSSP centralizing it's customer incidents in a single system. Do not repeat the organisation name in the EntityName Example: - ACME HeadQuaters is located in Paris France and has a local office in India - If the incident occurred in the local office: \"OrganisationName\": \"ACME\" , \"EntityName\": \"India\" - If the incident occurred in the headquaters: \"OrganisationName\": \"ACME\", \"EntityName\": \"Headquaters\" (or \"Paris\")",
            "type": "string"
        },
        "EntityId": {
            "description": "Entity ID, monitored by the organisation, where the incident occurred. Useful if organisation and entity are not directly linked, like a customer and a MSSP.",
            "type": "string"
        },
        "EntitySector": {
            "description": "The economic sector(s) and sub-sector(s) in which the entity operates. Values follow the dot notation sector.subsector based on the critical infrastructure taxonomy defined in the NIS2 Directive and CER (Critical Entities Resilience) Directive. This attribute enables sector-based correlation, regulatory compliance reporting, and risk context for incident detection.",
            "type": "array",
            "items": {
                "$ref": "#/definitions/entitysectorEnum"
            }
        },
        "Type": {
            "description": "Incident type.",
            "type": "array",
            "items": {
                "$ref": "#/definitions/typeEnum"
            }
        },
        "Category": {
            "description": "Incident category.",
            "type": "array",
            "items": {
                "$ref": "#/definitions/categoryEnum"
            }
        },
        "ext-Category": {
            "description": "A means by which to extend the Category attribute. (see )",
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "Cause": {
            "description": "Incident cause. The cause can be modified by any analyzer on the way of the alert and later by the operator and/or the analyst if new investigation reveals and confirms a different cause of the event.",
            "$ref": "#/definitions/causeEnum"
        },
        "Description": {
            "description": "Short free text human-readable description of the event. The description can add detail to the event category for easiest/faster comprehension by the operator. Example : * Cryptoware WannaCry blocked on pegasus server * Unknown person entering through east doorway",
            "type": "string"
        },
        "Status": {
            "description": "Event state in the overall event lifecycle.",
            "type": "array",
            "items": {
                "$ref": "#/definitions/statusEnum"
            }
        },
        "Priority": {
            "description": "Priority of the alert. Priority is defined by combining impact and urgency. It indicates how fast the incident should be taken care of.",
            "$ref": "#/definitions/priorityEnum"
        },
        "Confidence": {
            "description": "A floating-point value between 0 and 1 indicating the analyzer's confidence in its own reliability of this particular detection, where 0 means that the detection is surely incorrect while 1 means there is no doubt about the detection made.",
            "type": "number",
            "minimum": 0,
            "maximum": 1
        },
        "Note": {
            "description": "Free text human-readable additional note, possibly a longer description of the incident if is not already obvious. The Note attribute can be used to store any additional information. It can be additional information about the event and/or about the incident resolution, although the incident resolution information should in principle be stored elsewhere (with a link with the external tool in AltNames)",
            "type": "string"
        },
        "CreateTime": {
            "description": "Timestamp indicating when the alert was created.",
            "$ref": "#/definitions/timestampType"
        },
        "StartTime": {
            "description": "Timestamp indicating the deduced start of the event. StartTime can be later than CreateTime in case or Alerts created from forecast information (e.g. Snow Storm expected in two days staring at 10h00)",
            "$ref": "#/definitions/timestampType"
        },
        "EndTime": {
            "description": "Timestamp indicating the deduced end of the event.",
            "$ref": "#/definitions/timestampType"
        },
        "ReportTime": {
            "description": "Timestamp indicating the reporting time of the event, usually to an external CSIRT or a central SIEM.",
            "$ref": "#/definitions/timestampType"
        },
        "AltNames": {
            "description": "Alternative identifiers; strings which help pair the event to internal systems' information (for example ticket IDs inside a request tracking systems).",
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "AltCategory": {
            "description": "Alternate categories from a reference other than IDMEFv2 categories (e.g. MISP, MITRE ATT@CK or another proprietary/internal reference).",
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "Ref": {
            "description": "References to sources of information related to the incident and/or vulnerability, and specific to this incident. This MAY be a URL to additional info, or a URN in a registered or unregistered ad-hoc namespace bearing reasonable information value and uniqueness, such as \"urn:cve:CVE-2013-2266\".",
            "type": "array",
            "items": {
                "type": "string",
                "format": "uri"
            }
        },
        "CorrelID": {
            "description": "Identifiers for the messages which were used as information sources to create this message, in case the message has been created based on correlation/analysis/deduction from other messages.",
            "type": "array",
            "items": {
                "$ref": "#/definitions/uuidType"
            }
        },
        "AggrCondition": {
            "description": "A list of IDMEF fields used to aggregate events. The values for these fields will be the same in all aggregated events. This attribute should mostly be set by intermediary nodes, which detect duplicates, or aggregate events, spanning multiple detection windows, into a longer one. The \"StartTime\" and \"EndTime\" attributes are used in conjunction with this attribute to describe the aggregation window.",
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "PredID": {
            "description": "A list containing the identifiers of previous messages which are obsoleted by this message. The obsoleted alerts SHOULD NOT be used anymore. This field can be used to \"update\" an alert.",
            "type": "array",
            "items": {
                "$ref": "#/definitions/uuidType"
            }
        },
        "RelID": {
            "description": "A list containing the identifiers of other messages related to this message.",
            "type": "array",
            "items": {
                "$ref": "#/definitions/uuidType"
            }
        },
        "SignedAttributes": {
            "description": "List of IDMEFv2 paths of the attributes included in the signature.",
            "type": "array",
            "items": {
                "type": "string"
            }
        },
        "Signature": {
            "description": "JWS Compact Serialization string containing the signature.",
            "type": "string"
        },
        "Analyzer": {
            "type": "object",
            "description": "The Analyzer class describes the module that has analyzed the data captured by the sensors, identified an event of interest and decided to create an alert.",
            "properties": {
                "ID": {
                    "description": "Unique identifier for the analyzer.",
                    "$ref": "#/definitions/uuidType"
                },
                "IP": {
                    "description": "Analyzer IP address.",
                    "$ref": "#/definitions/ipType"
                },
                "Name": {
                    "description": "Name of the analyzer, which must be reasonably unique, however still bear some meaningful sense. This attribute usually denotes the hierarchy of organizational units the detector belongs to and its own name. It MAY also be used to distinguish multiple analyzers running with the same IP address.",
                    "type": "string"
                },
                "Hostname": {
                    "description": "Hostname of this analyzer. SHOULD be a fully-qualified domain name.",
                    "type": "string"
                },
                "Model": {
                    "description": "Analyzer model description (usually its generic name, brand and version).",
                    "type": "string"
                },
                "Category": {
                    "description": "Analyzer categories.",
                    "type": "array",
                    "items": {
                        "$ref": "#/definitions/analyzerCategoryEnum"
                    }
                },
                "ext-Category": {
                    "description": "A means by which to extend the Category attribute. (see )",
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                },
                "Data": {
                    "description": "Type of data analyzed during the detection.",
                    "type": "array",
                    "items": {
                        "$ref": "#/definitions/analyzerDataEnum"
                    }
                },
                "ext-Data": {
                    "description": "A means by which to extend the Data attribute. (see )",
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                },
                "Method": {
                    "description": "Detection method.",
                    "type": "array",
                    "items": {
                        "$ref": "#/definitions/analyzerMethodEnum"
                    }
                },
                "ext-Method": {
                    "description": "A means by which to extend the Method attribute. (see )",
                    "type": "array",
                    "items": {
                        "type": "string"
                    }
                },
                "GeoLocation": {
                    "description": "GPS coordinates for the analyzer.",
                    "$ref": "#/definitions/geolocType"
                },
                "UnLocation": {
                    "description": "Standard UN/Locode for the analyzer.",
                    "$ref": "#/definitions/unlocodeType"
                },
                "Location": {
                    "description": "Internal name for the location of the analyzer.",
                    "type": "string"
                },
                "Locator": {
                    "description": "Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.",
                    "type": "string"
                },
                "CaptureZone": {
                    "description": "A string that describes the \"capture zone\" of the analyzer (if the analyzer is also a sensor), as a JSON-serialized string. Depending on the type of sensor, the capture zone may for instance refer to: A JSON object describing a camera's settings (elevation, horizontal and vertical field of view, azimuth, etc.) A description of the IP network where packet capture is taking place.",
                    "type": "string"
                }
            },
            "additionalProperties": false
        },
        "Sensor": {
            "type": "array",
            "items": {
                "description": "The Sensor class describes the module that captured the data before sending it to an analyzer. The Sensor may be a subpart of the Analyzer.",
                "properties": {
                    "ID": {
                        "description": "Unique identifier for the sensor.",
                        "$ref": "#/definitions/uuidType"
                    },
                    "IP": {
                        "description": "The sensor's IP address.",
                        "$ref": "#/definitions/ipType"
                    },
                    "Name": {
                        "description": "Name of the sensor, which must be reasonably unique, however still bear some meaningful sense. This attribute usually denotes the hierarchy of organizational units the sensor belongs to and its own name. It MAY also be used to distinguish multiple sensors running with the same IP address.",
                        "type": "string"
                    },
                    "Hostname": {
                        "description": "The sensor's hostname. This SHOULD be a fully qualified domain name, but may not conform exactly because values extracted from logs, messages, DNS, etc. may themselves be malformed. An empty string MAY be used to explicitly state that this value was inquired but not found (missing DNS entry).",
                        "type": "string"
                    },
                    "Model": {
                        "description": "The sensor model's description (usually its generic name, brand and version).",
                        "type": "string"
                    },
                    "Data": {
                        "description": "Type of data captured by the sensor.",
                        "type": "array",
                        "items": {
                            "$ref": "#/definitions/sensorDataEnum"
                        }
                    },
                    "ext-Data": {
                        "description": "A means by which to extend the Data attribute. (see )",
                        "type": "array",
                        "items": {
                            "type": "string"
                        }
                    },
                    "GeoLocation": {
                        "description": "GPS coordinates for the analyzer.",
                        "$ref": "#/definitions/geolocType"
                    },
                    "UnLocation": {
                        "description": "Standard UN/Locode for the sensor.",
                        "$ref": "#/definitions/unlocodeType"
                    },
                    "Location": {
                        "description": "Internal name for the location of the sensor.",
                        "type": "string"
                    },
                    "Locator": {
                        "description": "Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.",
                        "type": "string"
                    },
                    "CaptureZone": {
                        "description": "A string that describes the \"capture zone\" of the sensor, as a JSON-serialized string. Depending on the type of sensor, the capture zone may for instance refer to: \n- A JSON object describing a camera's settings (elevation, horizontal and vertical field of view, azimuth, etc.)\n- A description of the IP network where packet capture is taking place.",
                        "type": "string"
                    }
                },
                "additionalProperties": false,
                "type": "object"
            }
        },
        "Source": {
            "type": "array",
            "items": {
                "description": "The Source class describes the origin(s) of the event(s) leading up to the creation of this alert.",
                "properties": {
                    "ID": {
                        "description": "Unique identifier for the source.",
                        "$ref": "#/definitions/uuidType"
                    },
                    "IP": {
                        "description": "Source IP address.",
                        "$ref": "#/definitions/ipType"
                    },
                    "Hostname": {
                        "description": "Hostname of this source. This SHOULD be a fully qualified domain name, but may not conform exactly because values extracted from logs, messages, DNS, etc. may themselves be malformed. An empty string MAY be used to explicitly state that this value was inquired but not found (missing DNS entry).",
                        "type": "string"
                    },
                    "Name": {
                        "description": "Name of this source. Naming the source might be necessary for non digital source like a human, a vehicle, a drone, etc.",
                        "type": "string"
                    },
                    "Category": {
                        "description": "Source category",
                        "type": "array",
                        "items": {
                            "$ref": "#/definitions/sourceCategoryEnum"
                        }
                    },
                    "Note": {
                        "description": "Free text human-readable additional note for this source.",
                        "type": "string"
                    },
                    "TI": {
                        "description": "Threat Intelligence data about the source. Values in this list MUST use the format \"attribute:origin\", where \"attribute\" refers to the attribute inside this source found inside a Threat Intelligence database, and \"origin\" contains a short identifier for the Threat Intelligence database. E.g. \"IP:Dshield\". Please note that the same attribute may appear multiple times inside the list (because a match was found in multiple Threat Intelligence databases).",
                        "type": "array",
                        "items": {
                            "type": "string"
                        }
                    },
                    "User": {
                        "description": "User ID or login responsible for the incident.",
                        "type": "string"
                    },
                    "Email": {
                        "description": "Email address responsible for the incident. E.g. the value of the \"Reply-To\" or \"From\" header inside a phishing e-mail.",
                        "type": "string",
                        "format": "email"
                    },
                    "Protocol": {
                        "description": "Protocols related to connections from/to this source. If several protocols are stacked, they MUST be ordered from the lowest (the closest to the medium) to the highest (the closest to the application) according to the ISO/OSI model.",
                        "type": "array",
                        "items": {
                            "$ref": "#/definitions/protocolType"
                        }
                    },
                    "Port": {
                        "description": "Source ports involved in the incident. Values in this list MUST be integers and MUST be in the range 1-65535.",
                        "type": "array",
                        "items": {
                            "type": "integer"
                        }
                    },
                    "GeoLocation": {
                        "description": "GPS coordinates for the source.",
                        "$ref": "#/definitions/geolocType"
                    },
                    "UnLocation": {
                        "description": "Standard UN/Locode for the source.",
                        "$ref": "#/definitions/unlocodeType"
                    },
                    "Location": {
                        "description": "Internal name for the location of the source.",
                        "type": "string"
                    },
                    "Locator": {
                        "description": "Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.",
                        "type": "string"
                    },
                    "Attachment": {
                        "description": "Identifiers for attachments related to this source. Each identifier listed here MUST match the \"Name\" attribute for one of the attachments described using the Attachment class .",
                        "type": "array",
                        "items": {
                            "$ref": "#/definitions/attachmentNameType"
                        }
                    }
                },
                "additionalProperties": false,
                "type": "object"
            }
        },
        "Target": {
            "type": "array",
            "items": {
                "description": "The Target class describes the target(s) impacted by the event(s) leading up to the creation of this alert.",
                "properties": {
                    "ID": {
                        "description": "Unique identifier for the target.",
                        "$ref": "#/definitions/uuidType"
                    },
                    "IP": {
                        "description": "Target IP address.",
                        "$ref": "#/definitions/ipType"
                    },
                    "Hostname": {
                        "description": "Hostname of this target. This SHOULD be a fully qualified domain name, but may not conform exactly because values extracted from logs, messages, DNS, etc. may themselves be malformed. An empty string MAY be used to explicitly state that this value was inquired but not found (missing DNS entry).",
                        "type": "string"
                    },
                    "Name": {
                        "description": "Name of this target. Naming the target might be necessary for non digital targets like a human, a vehicle, a building, etc.",
                        "type": "string"
                    },
                    "Category": {
                        "description": "Target category",
                        "type": "array",
                        "items": {
                            "$ref": "#/definitions/targetCategoryEnum"
                        }
                    },
                    "Note": {
                        "description": "Free text human-readable additional note for this target.",
                        "type": "string"
                    },
                    "Service": {
                        "description": "Should be High Level Service (messaging, internet, ...), if not defined can be process impacted by the incident.",
                        "type": "string"
                    },
                    "User": {
                        "description": "User ID or login impacted by the incident.",
                        "type": "string"
                    },
                    "Email": {
                        "description": "Email address impacted by the incident. E.g. the value of the \"To\" header inside a phishing e-mail.",
                        "type": "string",
                        "format": "email"
                    },
                    "Port": {
                        "description": "Target ports involved in the incident. Values in this list MUST be integers and MUST be in the range 1-65535.",
                        "type": "array",
                        "items": {
                            "type": "integer"
                        }
                    },
                    "Polygon": {
                        "description": "Pollygonal incident affected area. Whitespace-delimited list of WGS 84 'latitude,longitude' pairs. Minimum 4 pairs, first equals last",
                        "type": "string"
                    },
                    "Circle": {
                        "description": "Circular incident infected area. WGS 84 center point 'latitude,longitude' followed by a space and radius in kilometers",
                        "type": "string"
                    },
                    "GeoLocation": {
                        "description": "GPS coordinates for the target.",
                        "$ref": "#/definitions/geolocType"
                    },
                    "UnLocation": {
                        "description": "Standard UN/Locode for the target.",
                        "$ref": "#/definitions/unlocodeType"
                    },
                    "Location": {
                        "description": "Internal name for the location of the target.",
                        "type": "string"
                    },
                    "Locator": {
                        "description": "Resolvable URL for the entity. May be dynamic or expire; complements Location, which is a persistent path.",
                        "type": "string"
                    },
                    "Attachment": {
                        "description": "Identifiers for attachments related to this target. Each identifier listed here MUST match the \"Name\" attribute for one of the attachments described using the Attachment class .",
                        "type": "array",
                        "items": {
                            "$ref": "#/definitions/attachmentNameType"
                        }
                    }
                },
                "additionalProperties": false,
                "type": "object"
            }
        },
        "Attachment": {
            "type": "array",
            "items": {
                "description": "The Attachment class contains additional data which was captured in relation with the event.",
                "properties": {
                    "Name": {
                        "description": "A unique identifier among attachments that can be used to reference this attachment from other classes using the \"Attachment\" attribute.",
                        "$ref": "#/definitions/attachmentNameType"
                    },
                    "FileName": {
                        "description": "Attachment filename. This will usually be the original name of the captured file or the name of the file containing the captured content (e.g. a packet capture file).",
                        "type": "string"
                    },
                    "Hash": {
                        "description": "A list of hash results for the attachment's Content. The values in this list are computed by taking the raw value of the attachment's \"Content\" attribute. The hash result is computed before any other transformation (e.g. Base64 encoding) is applied to the content, so that a receiving IDMEF system may reverse the transformation, apply the same hashing function and obtain the same hash result. See also the definition for the \"ContentEncoding\" attribute below. It is RECOMMENDED that compatible implementations use one of the hashing functions from the SHA-2 or SHA-3 families to compute the hash results in this list.",
                        "type": "array",
                        "items": {
                            "$ref": "#/definitions/hashType"
                        }
                    },
                    "Size": {
                        "description": "Length of the content (in bytes). This value MUST be a non-negative integer.",
                        "type": "integer"
                    },
                    "Ref": {
                        "description": "References to sources of information related to the incident and/or vulnerability, and specific to this attachment.",
                        "type": "array",
                        "items": {
                            "type": "string",
                            "format": "uri"
                        }
                    },
                    "ExternalURI": {
                        "description": "If the attachment's content is available and/or recognizable from an external resource, this is the URI (usually a URL) to that resource. This MAY also be a URN in a registered or unregistered ad-hoc namespace bearing reasonable information value and uniqueness, such as \"urn:mhr:55eaf7effadc07f866d1eaed9c64e7ee49fe081a\" or \"magnet:?xt=urn:sha1:YNCKHTQCWBTRNJIV4WNAE52SJUQCZO5C\".",
                        "type": "array",
                        "items": {
                            "type": "string",
                            "format": "uri"
                        }
                    },
                    "Note": {
                        "description": "Free text human-readable additional note for this attachment.",
                        "type": "string"
                    },
                    "ContentType": {
                        "description": "Internet Media Type of the attachment. For compatibility reasons, implementations SHOULD prefer one of the well-known media types registered in IANA .",
                        "$ref": "#/definitions/mediatypeType"
                    },
                    "ContentEncoding": {
                        "description": "Content encoding. The following encodings are defined in this version of the specification: \n- \"json\": The content refers to a JSON object which has been serialized to a string using the serialization procedure defined in .\n- \"base64\": The content has been serialized using the Base64 encoding defined in . The \"base64\" encoding SHOULD be used when the content contains binary data. If omitted, the \"json\" encoding MUST be assumed.",
                        "type": "string"
                    },
                    "Content": {
                        "description": "The attachment's content, in case it is directly embedded inside the message. For large attachments, it is RECOMMENDED that implementations make use of the \"ExternalURI\" attribute to refererence a copy of the content saved in an external storage mechanism.",
                        "type": [
                            "object",
                            "string"
                        ]
                    }
                },
                "additionalProperties": false,
                "type": "object",
                "required": [
                    "Name"
                ]
            }
        }
    },
    "additionalProperties": false,
    "type": "object",
    "required": [
        "Analyzer",
        "Version",
        "ID",
        "CreateTime"
    ],
    "definitions": {
        "entitysectorEnum": {
            "enum": [
                "Undefined",
                "Administration.CentralGovernment",
                "Administration.Diplomatic",
                "Administration.EmergencyServices",
                "Administration.Judiciary",
                "Administration.Local",
                "Administration.Other",
                "Banking.Banking",
                "Banking.Other",
                "Cemeteries.Crematoria",
                "Cemeteries.Public",
                "Cemeteries.Other",
                "Chemical.Production",
                "Chemical.Storage",
                "Chemical.Other",
                "Civil.ElectionMonitoring",
                "Civil.HumanitarianAid",
                "Civil.NGOs",
                "Civil.Other",
                "Cultural.Archives",
                "Cultural.HistoricalSites",
                "Cultural.Libraries",
                "Cultural.Museums",
                "Cultural.Other",
                "Defense.CommandControl",
                "Defense.Cyber",
                "Defense.IndustrialBase",
                "Defense.Logistics",
                "Defense.Installations",
                "Defense.Research",
                "Defense.Other",
                "Digital.CloudServices",
                "Digital.DataCenters",
                "Digital.DigitalProviders",
                "Digital.DomainNameSystems",
                "Digital.ICTServiceManagement",
                "Digital.SatelliteCommunications",
                "Digital.TelecomNetworks",
                "Digital.UnderseaCables",
                "Digital.Other",
                "Education.PrimarySecondary",
                "Education.ResearchSchools",
                "Education.Universities",
                "Education.Other",
                "Emergency.CivilProtection",
                "Emergency.Medical",
                "Emergency.FireAndRescue",
                "Emergency.Police",
                "Emergency.Other",
                "Energy.DistrictHeating",
                "Energy.Electricity",
                "Energy.Gas",
                "Energy.Hydrogen",
                "Energy.Nuclear",
                "Energy.Oil",
                "Energy.Other",
                "Finance.MarketInfrastructures",
                "Finance.Insurance",
                "Finance.PaymentSystems",
                "Finance.Other",
                "Food.AgriculturalProduction",
                "Food.FoodDistribution",
                "Food.FoodProcessing",
                "Food.FoodSafety",
                "Food.Other",
                "Health.BloodAndTissue",
                "Health.HealthcareProviders",
                "Health.Laboratories",
                "Health.MedicalDevices",
                "Health.PharmaceuticalSupplyChain",
                "Health.PublicHealth",
                "Health.Other",
                "Logistics.FreightForwarding",
                "Logistics.LastMileDelivery",
                "Logistics.ThirdPartyLogistics",
                "Logistics.Warehousing",
                "Logistics.Other",
                "Manufacturing.Aerospace",
                "Manufacturing.Batteries",
                "Manufacturing.Chemical",
                "Manufacturing.Electronic",
                "Manufacturing.Defense",
                "Manufacturing.MedicalDevices",
                "Manufacturing.MotorVehicles",
                "Manufacturing.Pharmaceutical",
                "Manufacturing.Semiconductors",
                "Manufacturing.Strategic",
                "Manufacturing.Other",
                "Media.Infrastructure",
                "Media.OnlineMedia",
                "Media.Press",
                "Media.Radio",
                "Media.Television",
                "Media.Other",
                "Mining.CriticalRawMaterials",
                "Mining.EnergyMinerals",
                "Mining.Other",
                "Nuclear.FuelCycle",
                "Nuclear.Medical",
                "Nuclear.PowerGeneration",
                "Nuclear.Research",
                "Nuclear.Other",
                "Postal.CourierServices",
                "Postal.Other",
                "Religious.PilgrimageSites",
                "Religious.PlacesOfWorship",
                "Religious.Other",
                "Research.BiologicalSafety",
                "Research.ChemicalSafety",
                "Research.Research",
                "Research.Other",
                "Space.GroundStations",
                "Space.LaunchFacilities",
                "Space.SpaceActivities",
                "Space.Other",
                "Transport.Aviation",
                "Transport.Maritime",
                "Transport.Pipeline",
                "Transport.PublicTransport",
                "Transport.Rail",
                "Transport.Road",
                "Transport.Other",
                "Waste.Hazardous",
                "Waste.NonHazardous",
                "Waste.Nuclear",
                "Waste.Recycling",
                "Waste.Other",
                "Water.DamsAndReservoirs",
                "Water.DrinkingWater",
                "Water.Irrigation",
                "Water.Wastewater",
                "Water.Other"
            ],
            "description": "Possible alert entitysector"
        },
        "typeEnum": {
            "enum": [
                "Cyber",
                "Physical",
                "Availability",
                "Hazards",
                "Combined"
            ],
            "description": "Possible alert type"
        },
        "categoryEnum": {
            "enum": [
                "Abuse.Coercion",
                "Abuse.Extremism",
                "Abuse.Grooming",
                "Abuse.Harassment",
                "Abuse.Trafficking",
                "Abuse.Other",
                "Access.Authorized",
                "Access.Backdoor",
                "Access.Cloned",
                "Access.Compromise",
                "Access.Escalation",
                "Access.Expired",
                "Access.Forced",
                "Access.Lost",
                "Access.Tailgating",
                "Access.Unauthorized",
                "Access.Other",
                "Anomaly.Burst",
                "Anomaly.Chaos",
                "Anomaly.Context",
                "Anomaly.Correlation",
                "Anomaly.Deviation",
                "Anomaly.Drift",
                "Anomaly.Oscillation",
                "Anomaly.Relation",
                "Anomaly.Sequence",
                "Anomaly.Threshold",
                "Anomaly.Timing",
                "Anomaly.Unknown",
                "Anomaly.Other",
                "Availability.DDoS",
                "Availability.DoS",
                "Availability.Failure",
                "Availability.Flapping",
                "Availability.Heartbeat",
                "Availability.Misconfiguration",
                "Availability.Outage",
                "Availability.Overload",
                "Availability.Recovery",
                "Availability.Restart",
                "Availability.Start",
                "Availability.Status",
                "Availability.Stop",
                "Availability.Other",
                "Biological.Animal",
                "Biological.Epidemic",
                "Biological.Insect",
                "Biological.Zombies",
                "Biological.Other",
                "Climate.Drought",
                "Climate.LakeOutburst",
                "Climate.Wildfire",
                "Climate.Other",
                "Extraterrestrial.Aliens",
                "Extraterrestrial.Impact",
                "Extraterrestrial.SpaceWeather",
                "Extraterrestrial.Other",
                "Fraud.Copyright",
                "Fraud.Corruption",
                "Fraud.Espionage",
                "Fraud.Masquerade",
                "Fraud.Usage",
                "Fraud.Other",
                "Geophysical.Earthquake",
                "Geophysical.MassMovement",
                "Geophysical.Other",
                "Geophysical.Volcanic",
                "Hydro.Flood",
                "Hydro.Landslide",
                "Hydro.Wave",
                "Hydro.Other",
                "Insider.Malicious",
                "Insider.Negligent",
                "Insider.Other",
                "Malware.Adware",
                "Malware.Backdoor",
                "Malware.ResourceHijacking",
                "Malware.Downloader",
                "Malware.Ransomware",
                "Malware.Rootkit",
                "Malware.Spyware",
                "Malware.Trojan",
                "Malware.Virus",
                "Malware.Worm",
                "Malware.Other",
                "Meteo.Cold",
                "Meteo.Fog",
                "Meteo.Heat",
                "Meteo.Rain",
                "Meteo.Snow",
                "Meteo.Wind",
                "Meteo.Other",
                "National.Conflict",
                "National.Crime",
                "National.Cyber",
                "National.Economic",
                "National.Environmental",
                "National.Societal",
                "National.Terrorism",
                "National.Other",
                "Operational.Configuration",
                "Operational.Misuse",
                "Operational.PolicyViolation",
                "Operational.ProcessFailure",
                "Operational.Update",
                "Operational.Other",
                "Recon.Aerial",
                "Recon.Landscape",
                "Recon.Network",
                "Recon.OSINT",
                "Recon.Other",
                "Sabotage.Data",
                "Sabotage.Destruction",
                "Sabotage.Disruption",
                "Sabotage.Equipment",
                "Sabotage.Graffiti",
                "Sabotage.Tampering",
                "Sabotage.Vandalism",
                "Sabotage.Other",
                "Safety.Accident",
                "Safety.Aggression",
                "Safety.Explosion"
            ],
            "description": "Possible alert category"
        },
        "causeEnum": {
            "enum": [
                "Normal",
                "Error",
                "Malicious",
                "Malfunction",
                "Hazard",
                "Unknown"
            ],
            "description": "Possible alert cause"
        },
        "statusEnum": {
            "enum": [
                "Event",
                "Incident",
                "Open",
                "Closed",
                "FalsePositive",
                "Obsolete"
            ],
            "description": "Possible alert status"
        },
        "priorityEnum": {
            "enum": [
                "Unknown",
                "Info",
                "Low",
                "Medium",
                "High",
                "Critical"
            ],
            "description": "Possible alert priority"
        },
        "analyzerCategoryEnum": {
            "enum": [
                "Undetermined",
                "APP.BAST",
                "APP.DAST",
                "APP.IAST",
                "APP.RASP",
                "APP.SANDBOX",
                "APP.SAST",
                "APP.SCA",
                "CLD.CASB",
                "CLD.CIEM",
                "CLD.CSPM",
                "CLD.CWPP",
                "DDoS.ANTI-DDOS",
                "DDoS.SCRUB",
                "DDoS.WAF-DDOS",
                "EMAIL.ANTI-PHISH",
                "EMAIL.DMARC",
                "EMAIL.SEG",
                "EMAIL.SPAM-FILTER",
                "END.AM",
                "END.AV",
                "END.DLP-EP",
                "END.EDR",
                "END.EPP",
                "END.HIDS",
                "END.HIPS",
                "END.HPT",
                "HUM.REPORT",
                "ID.DCAP",
                "ID.DLP",
                "ID.IAM",
                "ID.IRM",
                "ID.MFA",
                "ID.PAM",
                "ID.PIM",
                "ID.SECRETS",
                "ID.UEBA",
                "NAT.AIR",
                "NAT.FIRE",
                "NAT.HYDRO",
                "NAT.METEO",
                "NAT.RADIO",
                "NAT.SAT",
                "NAT.SEISMO",
                "NET.DNS-FW",
                "NET.DPI",
                "NET.FW",
                "NET.NAC",
                "NET.NBAD",
                "NET.NDR",
                "NET.NGFW",
                "NET.NIDS",
                "NET.NIPS",
                "NET.PROXY",
                "NET.WAF",
                "NET.WIDS",
                "NET.WIPS",
                "OT.IOT-IDS",
                "OT.OT-IDS",
                "OT.PLC-SCAN",
                "OT.SCADA",
                "OT.SENSOR",
                "PHY.1D-LAS",
                "PHY.2D-LAS",
                "PHY.3D-LAS",
                "PHY.ACCESS-CTRL",
                "PHY.ADS",
                "PHY.CBRN",
                "PHY.FIRE",
                "PHY.FR-CAM",
                "PHY.GAS",
                "PHY.GLASS-BRK",
                "PHY.HAR",
                "PHY.LWIR",
                "PHY.MOT-SEN",
                "PHY.MWIR",
                "PHY.OBJ-DET",
                "PHY.PERIMETER",
                "PHY.RADAR",
                "PHY.SMOKE",
                "PHY.SWIR",
                "PHY.VAD",
                "PHY.VNIR",
                "PHY.WATER",
                "SIEM.APM",
                "SIEM.ETL",
                "SIEM.LOG",
                "SIEM.NMS",
                "SIEM.SIEM",
                "SIEM.SOAR",
                "SIEM.UPTIME",
                "TI.CTI",
                "TI.TI-FEED",
                "TI.TIP",
                "VM.ASM",
                "VM.PENTEST",
                "VM.VULN-SCANNER",
                "ext-value"
            ],
            "description": "Possible analyzer category"
        },
        "analyzerDataEnum": {
            "enum": [
                "Undetermined",
                "Acoustics",
                "Alert",
                "Contact",
                "Content",
                "Data",
                "Datagram",
                "External",
                "File",
                "Flow",
                "Fog",
                "Humidity",
                "Images",
                "Lidar",
                "Light",
                "Log",
                "Magnetic",
                "Particles",
                "PCAP",
                "Rain",
                "Seismic",
                "SNMP",
                "Temperature",
                "Thermal",
                "Vibration",
                "Water",
                "ext-value"
            ],
            "description": "Possible analyzer data"
        },
        "analyzerMethodEnum": {
            "enum": [
                "Undetermined",
                "AI",
                "Anomaly",
                "Behavioral",
                "Biometric",
                "Blackhole",
                "Contextual",
                "Correlation",
                "Ensemble",
                "Fingerprinting",
                "Frequency",
                "Fusion",
                "Geolocation",
                "Graph-based",
                "Heat",
                "Heuristic",
                "Honeypot",
                "Hygiene",
                "Integrity",
                "Metadata",
                "Monitor",
                "Movement",
                "Orchestration",
                "Pattern",
                "Policy",
                "Predictive",
                "Protocol",
                "Recon",
                "Reputation",
                "Rule-based",
                "Sequence",
                "Signature",
                "Statistical",
                "Tarpit",
                "Threat Intelligence",
                "Threshold",
                "Trend",
                "ext-value"
            ],
            "description": "Possible analyzer method"
        },
        "sourceCategoryEnum": {
            "enum": [
                "Undetermined",
                "Acoustic.Sound.GlassBreak",
                "Acoustic.Sound.Infrasound",
                "Acoustic.Sound.PressurizedLeak",
                "Acoustic.Sound.SonarEcho",
                "Acoustic.Sound.UltrasonicNoise",
                "Acoustic.Vibration.Footstep",
                "Acoustic.Vibration.Seismic",
                "Acoustic.Vibration.StructuralCrack",
                "Acoustic.Vibration.VehicleVibe",
                "Acoustic.Vibration.VibAnalysis",
                "ChemBio.Gases.CO",
                "ChemBio.Gases.CWA",
                "ChemBio.Gases.Freon",
                "ChemBio.Gases.Hydrogen",
                "ChemBio.Gases.Methane",
                "ChemBio.Gases.O2Level",
                "ChemBio.Gases.Propane",
                "ChemBio.Gases.Radon",
                "ChemBio.Gases.VOC",
                "ChemBio.Properties.ORP",
                "ChemBio.Properties.pHLevel",
                "ChemBio.Properties.Salinity",
                "ChemBio.Threats.Anthrax",
                "ChemBio.Threats.Botulinum",
                "ChemBio.Threats.Pathogen",
                "ChemBio.Threats.Ricin",
                "Cyber.Application.SQLQuery",
                "Cyber.Application.XSSPayload",
                "Cyber.Cloud.APIToken",
                "Cyber.Cloud.BucketName",
                "Cyber.Cloud.CloudResourceID",
                "Cyber.Cloud.OAuthApp",
                "Cyber.Email.EmailAuthResult",
                "Cyber.Email.MessageID",
                "Cyber.Email.RecipientEmail",
                "Cyber.Email.ReplyToEmail",
                "Cyber.Email.ReturnPath",
                "Cyber.Email.SenderEmail",
                "Cyber.Email.XOrigIP",
                "Cyber.Endpoint.CmdLine",
                "Cyber.Endpoint.DLL",
                "Cyber.Endpoint.FileHash",
                "Cyber.Endpoint.FilePath",
                "Cyber.Endpoint.MemoryArtifact",
                "Cyber.Endpoint.PID",
                "Cyber.Endpoint.ProcessName",
                "Cyber.Endpoint.RegistryKey",
                "Cyber.Endpoint.ScheduledTask",
                "Cyber.Endpoint.ServiceName",
                "Cyber.Forensics.NetFlow",
                "Cyber.Forensics.PacketPayload",
                "Cyber.Hardware.DeviceSerial",
                "Cyber.Hardware.USBDeviceID",
                "Cyber.Identity.LoginTimestamp",
                "Cyber.Identity.Username",
                "Cyber.Network.IPv4",
                "Cyber.Network.IPv6",
                "Cyber.Network.MAC",
                "Cyber.Network.Port",
                "Cyber.Network.Protocol",
                "Cyber.Web.Domain",
                "Cyber.Web.HTTPMethod",
                "Cyber.Web.ReferrerHeader",
                "Cyber.Web.SessionID",
                "Cyber.Web.URIPath",
                "Cyber.Web.URL",
                "Cyber.Web.UserAgent",
                "ElectroMag.Infrared.GasLeakIR",
                "ElectroMag.Infrared.HeatTemp",
                "ElectroMag.Infrared.MoistureContent",
                "ElectroMag.Infrared.ThermalGradient",
                "ElectroMag.Infrared.WarmBody",
                "ElectroMag.Ultraviolet.BioContamUV",
                "ElectroMag.Ultraviolet.CoronaArc",
                "ElectroMag.Ultraviolet.FlameUV",
                "ElectroMag.Ultraviolet.ForgeryUV",
                "ElectroMag.Light.BiometricEye",
                "ElectroMag.Light.EdgesShapes",
                "ElectroMag.Light.Flicker",
                "ElectroMag.Light.LightColor",
                "ElectroMag.Light.LightPresence",
                "ElectroMag.Light.MotionOptical",
                "ElectroMag.Light.ObjectsGeneric",
                "Force.Atmospheric.Altitude",
                "Force.Atmospheric.BaroPress",
                "Force.Atmospheric.VacuumLevel",
                "Force.Fluid.Airflow",
                "Force.Fluid.WaterPressure",
                "Force.Touch.GripStrength",
                "Force.Touch.PhysicalContact",
                "Force.Touch.TirePressure",
                "Force.Touch.Weight",
                "Radiation.General.Alpha",
                "Radiation.General.Beta",
                "Radiation.General.Cosmic",
                "Radiation.General.Gamma",
                "Radiation.General.Neutron",
                "Radiation.General.RadonDecay",
                "Radiation.General.Xray",
                "Magnetic.General.CurrentFlow",
                "Magnetic.General.ESD",
                "Magnetic.General.Ferrous",
                "Magnetic.General.MagneticAnomaly",
                "Magnetic.General.Orientation",
                "Magnetic.General.Powerline",
                "Magnetic.General.Voltage",
                "Object.Indoor.Container",
                "Object.Indoor.Document",
                "Object.Indoor.Electronics",
                "Object.Indoor.Furniture",
                "Object.Indoor.Weapon",
                "Object.LivingBeings.Animal",
                "Object.LivingBeings.BodyPose",
                "Object.LivingBeings.EyeGaze",
                "Object.LivingBeings.Face",
                "Object.LivingBeings.HandGesture",
                "Object.LivingBeings.Human",
                "Object.Outdoor.Building",
                "Object.Outdoor.Pothole",
                "Object.Outdoor.RoadSign",
                "Object.Outdoor.Vegetation",
                "Object.SpecificScenes.FireVisual",
                "Object.SpecificScenes.Flood",
                "Object.SpecificScenes.SmokeVisual",
                "Object.SpecificScenes.Snow",
                "Object.Vehicles.Aircraft",
                "Object.Vehicles.Boat",
                "Object.Vehicles.Bus",
                "Object.Vehicles.Car",
                "Object.Vehicles.LicensePlate",
                "Object.Vehicles.Moto",
                "Object.Vehicles.Truck",
                "Particulate.Aerosols.Bioaerosol",
                "Particulate.Aerosols.Dust",
                "Particulate.Aerosols.Pollen",
                "Particulate.Aerosols.SmokeIonization",
                "Particulate.Aerosols.SmokePhotoelectric",
                "Particulate.Liquids.ChemicalSpill",
                "Particulate.Liquids.FuelSheen",
                "Particulate.Liquids.LiquidLevel",
                "Particulate.Liquids.WaterLeak",
                "Particulate.Solids.DensityChange",
                "Particulate.Solids.ForeignObject",
                "Particulate.Solids.GrainFlow",
                "Particulate.Solids.Landmine",
                "Particulate.Solids.Metal",
                "Software.Detected.Crowd",
                "Software.Detected.CyberAttack",
                "Software.Detected.Drowsiness",
                "Software.Detected.Explosion",
                "Software.Detected.FailedBiometric",
                "Software.Detected.FireFusion",
                "Software.Detected.Intrusion",
                "Software.Detected.Loitering",
                "Software.Detected.Tailgating",
                "ext-value"
            ],
            "description": "Possible source category"
        },
        "targetCategoryEnum": {
            "enum": [
                "Undetermined",
                "Commercial.ClientBase",
                "Commercial.Partnerships",
                "Commercial.Reputation",
                "Financial.Cash",
                "Financial.Investments",
                "Financial.Receivables",
                "Furniture.Fittings",
                "Furniture.HVAC",
                "Furniture.OfficeFurniture",
                "Human.EmployerBrand",
                "Human.Organization",
                "Human.Skills",
                "Infrastructure.CivilWorks",
                "Infrastructure.Foundations",
                "Infrastructure.Networks",
                "IP.Copyrights",
                "IP.Patents",
                "IP.Trademarks",
                "IT.Endpoints",
                "IT.Hardware",
                "IT.Telecom",
                "Logistics.Containers",
                "Logistics.SpecialVehicles",
                "Logistics.Vehicles",
                "Marketing.Content",
                "Marketing.Domains",
                "Marketing.Identity",
                "Production.HeavyEquipment",
                "Production.Machinery",
                "Production.MachineTools",
                "RealEstate.Buildings",
                "RealEstate.Land",
                "RealEstate.SpecialStructures",
                "Software.Applications",
                "Software.Data",
                "Software.Licenses",
                "ext-value"
            ],
            "description": "Possible target category"
        },
        "attachmentNameType": {
            "description": "A a unique identifier among attachments.",
            "type": "string",
            "pattern": "^[a-zA-Z0-9]+$"
        },
        "portType": {
            "description": "A network port number. The value 0 is excluded from the range because it never appears in an actual network connection.",
            "type": "integer",
            "minimum": 0,
            "maximum": 65535,
            "exclusiveMinimum": true
        },
        "timestampType": {
            "description": "A JSON string containing a timestamp conforming to the format given in section 5.6 of RFC 3339.",
            "type": "string",
            "pattern": "^[0-9]{4}-(0[0-9]|1[012])-([0-2][0-9]|3[01])T([0-1][0-9]|2[0-3]):[0-5][0-9]:([0-5][0-9]|60)(\\.[0-9]+)?(Z|[-+]([0-1][0-9]|2[0-3]):[0-5][0-9])?$"
        },
        "geolocType": {
            "description": "Geolocation coordinates. The format for this type matches the definition for locations inside ISO 6709 (eg. \"+48.75726, +2.299528, +65.1\").",
            "type": "string",
            "pattern": "^[-+]?([0-9]+(\\.[0-9]*)?)(, ?[-+]?([0-9]+(\\.[0-9]*)?)){1,2}$"
        },
        "unlocodeType": {
            "description": "A valid UN/LOCODE location (e.g. \"FR PAR\"). See also the UN/LOCODE Code List 2020-2 at https://unece.org/trade/cefact/unlocode-code-list-country-and-territory.",
            "type": "string",
            "pattern": "^[A-Z]{2} ?[A-Z]{3}$"
        },
        "ipType": {
            "description": "An Internet Protocol address, either version 4 or version 6.",
            "type": "string",
            "pattern": "^(((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)|([0-9a-fA-F]{1,4}:){7,7}[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,7}:|([0-9a-fA-F]{1,4}:){1,6}:[0-9a-fA-F]{1,4}|([0-9a-fA-F]{1,4}:){1,5}(:[0-9a-fA-F]{1,4}){1,2}|([0-9a-fA-F]{1,4}:){1,4}(:[0-9a-fA-F]{1,4}){1,3}|([0-9a-fA-F]{1,4}:){1,3}(:[0-9a-fA-F]{1,4}){1,4}|([0-9a-fA-F]{1,4}:){1,2}(:[0-9a-fA-F]{1,4}){1,5}|[0-9a-fA-F]{1,4}:((:[0-9a-fA-F]{1,4}){1,6})|:((:[0-9a-fA-F]{1,4}){1,7}|:)|fe80:(:[0-9a-fA-F]{0,4}){0,4}%[0-9a-zA-Z]{1,}|::(ffff(:0{1,4}){0,1}:){0,1}((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])|([0-9a-fA-F]{1,4}:){1,4}:((25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9])\\.){3,3}(25[0-5]|(2[0-4]|1{0,1}[0-9]){0,1}[0-9]))$"
        },
        "mediatypeType": {
            "description": "A valid media type (e.g. \"text/plain\") conforming to the format defined in section 3.1.1.1 of RFC 7231. See also http://www.iana.org/assignments/media-types/media-types.xhtml.",
            "type": "string",
            "pattern": "^[-!#$%&amp;'*+.^_`|~0-9a-zA-Z]+/[-!#$%&amp;'*+.^_`|~0-9a-zA-Z]+([ \t]*;[ \t]*[-!#$%&amp;'*+.^_`|~0-9a-zA-Z]+=([-!#$%&amp;'*+.^_`|~0-9a-zA-Z]+|\"([\\x5D-~\t !#-\\x5B]|\\\\([\t 0-9a-zA-Z]))*\"))*$"
        },
        "uuidType": {
            "description": "Canonical textual representation for an UUID, as defined in RFC 4122 (e.g. \"e5f9bbae-163e-42f9-a2f2-0daaf78fefb1\")",
            "type": "string",
            "pattern": "^[0-9A-Fa-f]{8}(-[0-9A-Fa-f]{4}){3}-[0-9A-Fa-f]{12}$"
        },
        "protocolType": {
            "description": "A JSON string containing a service or protocol name from the set of permitted values defined in the IANA \"Service Name and Transport Protocol Port Number\" registry (http://www.iana.org/assignments/service-names-port-numbers/service-names-port-numbers.xhtml).",
            "type": "string",
            "pattern": "^[a-zA-Z0-9](-?[a-zA-Z0-9])*$"
        },
        "hashType": {
            "description": "A cryptographic hash acting as a checksum for some content, using the format \"function:hex-value\" (e.g. \"md5:dc89f0b4ff9bd3b061dd66bb66c991b1\").",
            "type": "string",
            "pattern": "^[a-zA-Z0-9-]+:([a-fA-F0-9]{2})+$"
        }
    },
    "$schema": "http://json-schema.org/draft-04/schema#",
    "title": "IDMEF 2.D.V09"
}</sourcecode>
    </section>
  </back>
</rfc>
