Posture check · Entra ID and hybrid
Guest or external account holds an admin role (T1078.004)
A guest or external account holds an admin role in this tenant. Exchange Administrator counts here because it can read every mailbox.
Why it matters
You don't manage the guest's home account. A compromise there gives an attacker this admin role without touching your tenant.
How GraphnAI finds it
It runs after every sync, on each connected domain or tenant on its own. It applies to Microsoft Entra ID.
It reads:
- The directory attributes
userTypeanduserPrincipalName - Group memberships
- 2 more GraphnAI analyses
Tiered Fidelity™ level: Theoretical
Every finding from this check carries the Theoretical level.
- TheoreticalThis checkConfigured in the directory. Nothing else checked.
- ConstrainedA constraint on it has been checked.
- ValidatedTelemetry has seen it in use.
How Select Fire™ fixes it
How to fix it
Remove the admin role from the guest or external account. If the person needs admin access, give them an account in this tenant.
What Select Fire changes
Select Fire opens from the finding and simulates each change on your live graph before anything changes in your directory.
- Remove directory role assignment For user accounts, groups and service principals.Manual: you approve each change one at a time, and no automation runs it.
Removing an admin role assignment takes that access away at once. The access plan shows which assignments change before anything runs.
By hand: Remove the admin role from the guest or external account. If the person needs admin access, give them an account in this tenant.
Related checks
MITRE ATT&CK® technique names and MITRE D3FEND™ technique labels: © The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. ATT&CK® is a registered trademark and D3FEND™ a trademark of The MITRE Corporation.
See it on your own directory.
The Public Preview is free for 30 days from your first sync, on your own server.