Security checks / Check reference / App registrations
App Certificate Non Expiring
High Severity Microsoft 365 security check in the App registrations domain.
Application certificate has no expiration date. Non-expiring certificates remain valid indefinitely if the private key is compromised A certificate with no EndDateTime never expires, providing persistent access if the key is stolen or leaked Siemserva runs this check automatically across your tenant and maps every finding to the compliance frameworks below.
Check summary
What this check verifies
Application certificate has no expiration date. Non-expiring certificates remain valid indefinitely if the private key is compromised
Why it matters
A certificate with no EndDateTime never expires, providing persistent access if the key is stolen or leaked
How to fix it
Reissue the certificate with a finite lifetime; enforce app management policy to prevent non-expiring certificates
Siemserva flags every tenant where this check fails and, with Senserva Trustworthy AI remediation, can propose a validated fix you approve before it applies.
Ask your own AI about this check
Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.
Compliance framework mappings
Findings from this check serve as evidence for:
References
Related App registrations checks
Common questions
What does the App Certificate Non Expiring check verify?
Application certificate has no expiration date. Non-expiring certificates remain valid indefinitely if the private key is compromised It is a High Severity check in the App registrations domain, one of the 650+ checks Siemserva runs across Microsoft 365, Intune, Defender, and Entra ID.
How do I fix a App Certificate Non Expiring finding?
Reissue the certificate with a finite lifetime; enforce app management policy to prevent non-expiring certificates Siemserva ranks the finding by Severity and, with Senserva Trustworthy AI, can propose a validated, approve-before-apply configuration fix.
Which compliance frameworks does this check evidence?
Findings from this check map to SCuBA, MCSB, NIST, SOC2, CIS, HIPAA, including SCuBA policy MS.AAD.5.1v1, MS.AAD.5.2v1, MS.AAD.5.3v1, and MCSB control IM-3. That mapping is what turns a scan finding into audit evidence.
Can I ask my own AI about this check?
Yes. This page includes a free copy-paste AI prompt carrying the check's facts: what it verifies, the risk, the remediation, and the framework mappings. Paste it into Claude, ChatGPT, or Copilot; cite-worthy detail without giving an AI access to your tenant.
All 672 checks with severities and mappings: the Microsoft 365 security checks catalog.