User ImmutableId Attribute Updated
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About the rule
Rule Type
Standard
Rule Description
Identifies changes to the immutableId attribute, often used for federation and SSO scenarios.
Severity
Critical
Rule Requirement
Criteria
Action1: actionname = "DETECTION_ACTION_M365_USER_UPDATED" AND (MODIFIED_PROPERTIES_GD contains "sourceanchor") select Action1.CALLER,Action1.TARGET,Action1.RESULT,Action1.MODIFIED_PROPERTIES_GD,Action1.TARGET_ID,Action1.OPERATION
Detection
Execution Mode
realtime
Log Sources
Microsoft 365
