EIDAPP-009: Stale Application Registrations
- Platform
- Entra ID / M365
- Category
- Consent
- Severity
- Medium
- Zero Trust pillar
- Applications & Workloads (weight 1)
- Golden fixtures
- 3
- Branch coverage
- Observed: fixtures prove the verdicts they exercise
- Provenance
- baseline
What it checks
Application registrations with no recent sign-in activity may be abandoned, orphaned, or no longer needed, yet they retain all granted permissions and credentials. Stale applications expand the attack surface because they are unlikely to be monitored or maintained by their original owners, making them attractive targets for attackers seeking to leverage forgotten credentials or permissions. Regular cleanup of unused applications reduces the tenant's overall risk exposure.
Recommended value
No application registrations without sign-in activity in the last 90 days unless documented with a valid exception
Remediation
Review application sign-in logs in Entra ID to identify applications with no authentication activity in the past 90 days. Contact the listed application owners to confirm whether the application is still required. Disable or delete stale application registrations after confirming they are no longer needed, and remove any associated credentials and permissions.
Fixture-proven verdicts
Every verdict below is proven by a golden fixture in the module's gating test suite. This table derives from the last green run; it cannot be edited by hand.
| Scenario | Expected verdict |
|---|---|
| clean | PASS |
| known-bad | WARN |
| no-data | Not Assessed |
Framework mappings
- NIST SP 800-53
- AC-2(3)