Conditional Access - A Conditional Access policy was updated

// A Conditional Access policy was updated.
AuditLogs
| where OperationName == "Update conditional access policy"
| extend
    policy = tostring(TargetResources[0].displayName),
    modifiedBy = tostring(InitiatedBy.user.userPrincipalName),
    oldPolicy = tostring(TargetResources[0].modifiedProperties[0].oldValue),
    newPolicy = tostring(TargetResources[0].modifiedProperties[0].newValue)
| extend
    accountName = tostring(split(modifiedBy, "@")[0]),
    upnSuffix = tostring(split(modifiedBy, "@")[1])
| project
    TimeGenerated,
    OperationName,
    policy,
    modifiedBy,
    accountName,
    upnSuffix,
    oldPolicy,
    newPolicy,
    Result

suppressionEnabled: false
description: A Conditional Access policy was updated in Entra ID.
kind: Scheduled
tactics:
- DefenseEvasion
requiredDataConnectors:
- connectorId: AzureActiveDirectory
  dataTypes:
  - AuditLogs
incidentConfiguration:
  groupingConfiguration:
    enabled: false
    groupByEntities: []
    reopenClosedIncident: false
    lookbackDuration: PT1H
    matchingMethod: AllEntities
    groupByCustomDetails: []
    groupByAlertDetails: []
  createIncident: true
OriginalUri: https://github.com/Azure/Azure-Sentinel/blob/master/Solutions/Microsoft Entra ID/Analytic Rules/Conditional Access - A Conditional Access policy was updated.yaml
severity: Informational
name: Conditional Access - A Conditional Access policy was updated
suppressionDuration: 5h
eventGroupingSettings:
  aggregationKind: AlertPerResult
triggerThreshold: 0
queryPeriod: 5m
query: |+
  // A Conditional Access policy was updated.
  AuditLogs
  | where OperationName == "Update conditional access policy"
  | extend
      policy = tostring(TargetResources[0].displayName),
      modifiedBy = tostring(InitiatedBy.user.userPrincipalName),
      oldPolicy = tostring(TargetResources[0].modifiedProperties[0].oldValue),
      newPolicy = tostring(TargetResources[0].modifiedProperties[0].newValue)
  | extend
      accountName = tostring(split(modifiedBy, "@")[0]),
      upnSuffix = tostring(split(modifiedBy, "@")[1])
  | project
      TimeGenerated,
      OperationName,
      policy,
      modifiedBy,
      accountName,
      upnSuffix,
      oldPolicy,
      newPolicy,
      Result  

relevantTechniques:
- T1562
id: ccca6b88-a7b6-41c9-9be2-fc3daeb65b26
queryFrequency: 5m
entityMappings:
- entityType: Account
  fieldMappings:
  - columnName: accountName
    identifier: Name
  - columnName: upnSuffix
    identifier: UPNSuffix
triggerOperator: gt
version: 1.0.1