User ImmutableId Attribute Updated

Last updated on:

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