Executive summary Delegated Managed Service Accounts (dMSAs) represent a significant update to Microsoft Active Directory identity management. Unlike traditional service accounts or group Managed Service Accounts (gMSAs), dMSAs move away from LDAP-based password retrieval toward a Kerberos-based credential issuance flow. Although this improves security by integrating with features like Credential Guard, it introduces new logic-based risks. Specifically, the Ouroboros primitive demonstrates that if an attacker controls dMSA permissions, they can inherit the privileges of the superseded legacy account. Organizations should adopt dMSAs to simplify migrations and enhance security, but they must monitor the internal authorization paths that define successor status. Introduction Delegated Managed Service Accounts (dMSAs) are one of the most meaningful identity changes Microsoft has introduced to Active Directory in years.…