Microsoft Entra guest account with unredeemed invite

Unredeemed Microsoft Entra guest account invitations can be exploited by attackers to create persistence, increasing risk of credential exposure through authentication and authorization mechanisms.
Stale Microsoft Entra guest account

Stale Microsoft Entra guest accounts expose your Entra ID tenant to information collection by attackers through inactive user accounts.
Microsoft Entra tenant configured to allow guests to invite other guests

A tenant-wide guest invitation configuration exposes data on other users, enabling attack paths through information gathering.
Guest account with Microsoft Entra role membership

A guest account with Microsoft Entra role membership exposes the environment to potential privilege escalation and external identity exposure through unmanaged identities.
Microsoft Entra tenant with unsecure Guest user access permissions

A Microsoft Entra tenant with unsecured Guest user access permissions exposes groups and users to unauthorized enumeration, expanding attacker reconnaissance capabilities.