AWS Organizations emits CloudTrail events for account membership changes

This article announces that AWS Organizations now emits CloudTrail events for account membership changes, providing enhanced visibility into organizational security.

• New CloudTrail events track when accounts join or leave organizations
• AccountJoinedOrganization event captures join method (Created/Invited) and timestamp
• AccountDepartedOrganization event records departure method (Left/Removed/Cleaned) and timestamp
• Enables real-time notifications via CloudWatch alarms and EventBridge rules
• Supports fraud detection, compliance auditing, and security monitoring
• Available in all commercial AWS Regions, GovCloud, and China Regions

These new events enhance security visibility by automatically tracking organizational membership changes, enabling rapid detection and response to unauthorized activities.