Class: Mitigation

name: Mitigation
annotations:
  stix_type:
    tag: stix_type
    value: course-of-action
  attack_id_format:
    tag: attack_id_format
    value: M####
description: 'Mitigations describe defensive measures, security controls, and configuration
  changes that can prevent or reduce the effectiveness of adversary techniques. Mitigations
  are implemented as STIX course-of-action objects.

  Historical note — Legacy 1:1 Mitigations: Prior to ATT&CK v5 (July 2019), mitigations
  had a 1:1 relationship with techniques and shared their ATT&CK IDs. This design
  was deprecated to support the current many-to-many model where one mitigation can
  address multiple techniques. Legacy 1:1 mitigation objects may cause ATT&CK ID collisions
  and can be filtered by their deprecated or revoked status.'
in_subset:
- attack_sdos
from_schema: https://w3id.org/lmodel/attack
is_a: AttackObject
slots:
- x_mitre_domains
- x_mitre_contributors
- x_mitre_modified_by_ref
slot_usage:
  type:
    name: type
    required: true
    pattern: ^course-of-action$
  id:
    name: id
    required: true
    pattern: ^course-of-action--
  name:
    name: name
    description: The name of the mitigation (e.g., 'Privileged Account Management',
      'Multi-Factor Authentication', 'Network Segmentation').
    required: true
  description:
    name: description
    description: A detailed description of the mitigation, what adversary behaviors
      it addresses, implementation guidance, and relevant considerations for enterprise
      defenders.
    required: true
  external_references:
    name: external_references
    description: External references. The first entry MUST have source_name 'mitre-attack'
      and contain the mitigation's ATT&CK ID as external_id (e.g., 'M1026').
    comments:
    - 'validator_hint: first-ref-must-be-mitre-attack-mitigation-id jsonschema_minItems:
      "1"'
    required: true
  created_by_ref:
    name: created_by_ref
    required: true
  object_marking_refs:
    name: object_marking_refs
    required: true
  x_mitre_domains:
    name: x_mitre_domains
    required: true
  x_mitre_modified_by_ref:
    name: x_mitre_modified_by_ref
    required: true

name: Mitigation
annotations:
  stix_type:
    tag: stix_type
    value: course-of-action
  attack_id_format:
    tag: attack_id_format
    value: M####
description: 'Mitigations describe defensive measures, security controls, and configuration
  changes that can prevent or reduce the effectiveness of adversary techniques. Mitigations
  are implemented as STIX course-of-action objects.

  Historical note — Legacy 1:1 Mitigations: Prior to ATT&CK v5 (July 2019), mitigations
  had a 1:1 relationship with techniques and shared their ATT&CK IDs. This design
  was deprecated to support the current many-to-many model where one mitigation can
  address multiple techniques. Legacy 1:1 mitigation objects may cause ATT&CK ID collisions
  and can be filtered by their deprecated or revoked status.'
in_subset:
- attack_sdos
from_schema: https://w3id.org/lmodel/attack
is_a: AttackObject
slot_usage:
  type:
    name: type
    required: true
    pattern: ^course-of-action$
  id:
    name: id
    required: true
    pattern: ^course-of-action--
  name:
    name: name
    description: The name of the mitigation (e.g., 'Privileged Account Management',
      'Multi-Factor Authentication', 'Network Segmentation').
    required: true
  description:
    name: description
    description: A detailed description of the mitigation, what adversary behaviors
      it addresses, implementation guidance, and relevant considerations for enterprise
      defenders.
    required: true
  external_references:
    name: external_references
    description: External references. The first entry MUST have source_name 'mitre-attack'
      and contain the mitigation's ATT&CK ID as external_id (e.g., 'M1026').
    comments:
    - 'validator_hint: first-ref-must-be-mitre-attack-mitigation-id jsonschema_minItems:
      "1"'
    required: true
  created_by_ref:
    name: created_by_ref
    required: true
  object_marking_refs:
    name: object_marking_refs
    required: true
  x_mitre_domains:
    name: x_mitre_domains
    required: true
  x_mitre_modified_by_ref:
    name: x_mitre_modified_by_ref
    required: true
attributes:
  x_mitre_domains:
    name: x_mitre_domains
    description: The ATT&CK technology domains to which this object belongs. At least
      one domain must be specified. An object may belong to multiple domains when
      the same technique, group, or software is relevant across domain boundaries.
    comments:
    - 'jsonschema_minItems: "1"'
    in_subset:
    - attack_sdos
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_domains
    owner: Mitigation
    domain_of:
    - Technique
    - Tactic
    - Group
    - AttackCampaign
    - Mitigation
    - AttackMalware
    - AttackTool
    - Asset
    - DataSource
    - DataComponent
    - Matrix
    - DetectionStrategy
    - Analytic
    range: AttackDomainEnum
    required: true
    multivalued: true
  x_mitre_contributors:
    name: x_mitre_contributors
    description: Names of people and organizations who have contributed to the creation
      or enrichment of this ATT&CK object. Contributors are credited for providing
      information, examples, or analysis that informed the object's content. Not present
      on relationship objects.
    in_subset:
    - attack_sdos
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_contributors
    owner: Mitigation
    domain_of:
    - Technique
    - Tactic
    - Group
    - AttackCampaign
    - Mitigation
    - AttackMalware
    - AttackTool
    - Asset
    - DataSource
    - DetectionStrategy
    range: string
    multivalued: true
  x_mitre_modified_by_ref:
    name: x_mitre_modified_by_ref
    description: 'The STIX ID of the identity object that created the current version
      of this object. In practice, always references MITRE''s canonical identity object:
      identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5. May differ from created_by_ref
      if the object was originally created by a third party and subsequently adopted
      or updated by MITRE.'
    comments:
    - 'validator_hint: must-match-mitre-identity-id'
    in_subset:
    - attack_sdos
    - attack_sros
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_modified_by_ref
    owner: Mitigation
    domain_of:
    - Technique
    - Tactic
    - Group
    - AttackCampaign
    - Mitigation
    - AttackMalware
    - AttackTool
    - Asset
    - DataSource
    - DataComponent
    - Matrix
    - Collection
    - DetectionStrategy
    - Analytic
    - AttackRelationship
    range: stix_identifier
    required: true
    pattern: ^identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5$
  x_mitre_attack_spec_version:
    name: x_mitre_attack_spec_version
    description: The version of the ATT&CK Data Model specification used to construct
      this object, in MAJOR.MINOR.PATCH (semantic versioning) format. Helps consuming
      software determine whether the data format is supported. Objects lacking this
      property are assumed to conform to ATT&CK spec version 2.0.0. Refer to the ATT&CK
      CHANGELOG for all supported versions.
    comments:
    - 'absent_on: marking-definition, identity (x_mitre_version absent), relationship
      (x_mitre_version absent)'
    in_subset:
    - attack_sdos
    - attack_sros
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_attack_spec_version
    owner: Mitigation
    domain_of:
    - AttackObject
    range: semver_string
    required: true
  x_mitre_version:
    name: x_mitre_version
    description: 'The version of this ATT&CK object content in ''major.minor'' format,
      where both components are integers between 0 and 99. Incremented by ATT&CK whenever
      the substantive content of the object changes. Does not apply to relationship
      objects. Example: "1.0", "12.5".'
    comments:
    - 'absent_on: relationship, marking-definition'
    in_subset:
    - attack_sdos
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_version
    owner: Mitigation
    domain_of:
    - AttackObject
    range: attack_version_string
    required: true
  x_mitre_deprecated:
    name: x_mitre_deprecated
    description: Boolean flag indicating that this ATT&CK object has been deprecated
      and should no longer be used in new analyses or tooling implementations. Deprecated
      objects are retained in the knowledge base for historical reference and legacy
      compatibility, but are not actively maintained with new information.
    comments:
    - 'absent_on: marking-definition'
    in_subset:
    - attack_sdos
    - attack_sros
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_deprecated
    owner: Mitigation
    domain_of:
    - AttackObject
    range: boolean
  x_mitre_old_attack_id:
    name: x_mitre_old_attack_id
    description: A legacy ATT&CK ID previously assigned to this object before a knowledge
      base restructuring or domain migration event. Format mirrors the current ATT&CK
      ID format but from the prior numbering scheme (e.g., "MOB-T1001" for a mobile
      technique previously in the pre-unification Mobile ATT&CK dataset).
    in_subset:
    - attack_sdos
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: x_mitre_old_attack_id
    owner: Mitigation
    domain_of:
    - AttackObject
    range: string
  type:
    name: type
    description: STIX object type.
    from_schema: https://w3id.org/lmodel/attack
    related_mappings:
    - unified_cyber_ontology:state
    rank: 1000
    alias: type
    owner: Mitigation
    domain_of:
    - StixEntity
    - Bundle
    - Core
    - CyberObservableCore
    - ExtensionDefinition
    - LanguageContent
    - MarkingDefinition
    - File
    range: stix_type_name
    required: true
    pattern: ^course-of-action$
  spec_version:
    name: spec_version
    description: STIX specification version.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:specVersion
    rank: 1000
    alias: spec_version
    owner: Mitigation
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    range: SpecVersionEnum
    required: true
  id:
    name: id
    description: STIX object identifier.
    from_schema: https://w3id.org/lmodel/attack
    related_mappings:
    - unified_cyber_ontology:externalReference
    rank: 1000
    alias: id
    owner: Mitigation
    domain_of:
    - StixEntity
    - Bundle
    - Core
    - CyberObservableCore
    - ExtensionDefinition
    - LanguageContent
    - MarkingDefinition
    - File
    range: stix_identifier
    required: true
    pattern: ^course-of-action--
  created:
    name: created
    description: Creation timestamp.
    notes:
    - STIX core timestamps require millisecond precision.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:objectCreatedTime
    rank: 1000
    alias: created
    owner: Mitigation
    domain_of:
    - Core
    - MarkingDefinition
    range: datetime
    required: true
    pattern: T\d{2}:\d{2}:\d{2}\.\d{3,}Z$
  modified:
    name: modified
    description: Modification timestamp.
    notes:
    - STIX core timestamps require millisecond precision.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:modifiedTime
    rank: 1000
    alias: modified
    owner: Mitigation
    domain_of:
    - Core
    range: datetime
    required: true
    pattern: T\d{2}:\d{2}:\d{2}\.\d{3,}Z$
  created_by_ref:
    name: created_by_ref
    description: The STIX ID of the identity object that first created this ATT&CK
      object. Typically references MITRE's identity (identity--c78cb6e5-0c4b-4611-8297-d1b8b55e40b5).
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:createdBy
    rank: 1000
    alias: created_by_ref
    owner: Mitigation
    domain_of:
    - Core
    - MarkingDefinition
    range: stix_identifier
    required: true
  labels:
    name: labels
    description: Terms used to describe this object.
    comments:
    - 'jsonschema_minItems: "1"'
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:tag
    rank: 1000
    alias: labels
    owner: Mitigation
    domain_of:
    - Core
    range: string
    multivalued: true
  revoked:
    name: revoked
    description: Indicates whether this object has been revoked.
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: revoked
    owner: Mitigation
    domain_of:
    - Core
    range: boolean
  confidence:
    name: confidence
    description: Confidence that the producer has in this data.
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: confidence
    owner: Mitigation
    domain_of:
    - Core
    range: integer
    minimum_value: 0
    maximum_value: 100
  lang:
    name: lang
    description: Language of textual properties.
    from_schema: https://w3id.org/lmodel/attack
    rank: 1000
    alias: lang
    owner: Mitigation
    domain_of:
    - Core
    - GranularMarking
    range: string
  external_references:
    name: external_references
    description: External references. The first entry MUST have source_name 'mitre-attack'
      and contain the mitigation's ATT&CK ID as external_id (e.g., 'M1026').
    comments:
    - 'validator_hint: first-ref-must-be-mitre-attack-mitigation-id jsonschema_minItems:
      "1"'
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:externalReference
    rank: 1000
    alias: external_references
    owner: Mitigation
    domain_of:
    - Core
    - MarkingDefinition
    range: ExternalReference
    required: true
    multivalued: true
  object_marking_refs:
    name: object_marking_refs
    description: Marking definition references applied to this object.
    comments:
    - 'jsonschema_minItems: "1"'
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:objectMarking
    rank: 1000
    alias: object_marking_refs
    owner: Mitigation
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    range: stix_identifier
    required: true
    multivalued: true
  granular_markings:
    name: granular_markings
    description: Granular markings that apply to selected content.
    comments:
    - 'jsonschema_minItems: "1"'
    from_schema: https://w3id.org/lmodel/attack
    narrow_mappings:
    - unified_cyber_ontology:objectMarking
    rank: 1000
    alias: granular_markings
    owner: Mitigation
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    range: GranularMarking
    multivalued: true
  extensions:
    name: extensions
    description: Open-ended extension payloads.
    notes:
    - JSON Schema uses patternProperties for extension keys; exact key validation
      is delegated to validator tooling.
    comments:
    - 'jsonschema_rule: patternProperties validator_hint: validate-extension-keys-and-values'
    from_schema: https://w3id.org/lmodel/attack
    related_mappings:
    - unified_cyber_ontology:hasFacet
    rank: 1000
    alias: extensions
    owner: Mitigation
    domain_of:
    - Core
    - CyberObservableCore
    - MarkingDefinition
    - File
    range: string
    multivalued: true
  name:
    name: name
    description: The name of the mitigation (e.g., 'Privileged Account Management',
      'Multi-Factor Authentication', 'Network Segmentation').
    from_schema: https://w3id.org/lmodel/attack
    exact_mappings:
    - unified_cyber_ontology:name
    rank: 1000
    alias: name
    owner: Mitigation
    domain_of:
    - RelatedAsset
    - StixEntity
    - ExtensionDefinition
    - MarkingDefinition
    - AutonomousSystem
    - File
    range: string
    required: true
  description:
    name: description
    description: A detailed description of the mitigation, what adversary behaviors
      it addresses, implementation guidance, and relevant considerations for enterprise
      defenders.
    from_schema: https://w3id.org/lmodel/attack
    close_mappings:
    - unified_cyber_ontology:description
    rank: 1000
    alias: description
    owner: Mitigation
    domain_of:
    - RelatedAsset
    - MutableElement
    - StixEntity
    - ExtensionDefinition
    - ExternalReference
    range: string
    required: true