You can track changes to users, groups, and permissions on repository objects by selecting the SecurityAuditTrail configuration option in the PowerCenter Repository Service properties in the Administrator tool. When you enable the audit trail, the PowerCenter Repository Service logs security changes to the PowerCenter Repository Service log. The audit trail logs the following operations:
Changing the owner or permissions for a folder or connection object.
Adding or removing a user or group.
The audit trail does not log the following operations:
Changing your own password.
Changing the owner or permissions for a deployment group, label, or query.