Physical access becomes the blind spot. If certification campaigns only cover applications, badges and facility permissions can remain active without a comparable review trail. That leaves auditors with incomplete evidence and security teams with a false sense of control over who can enter sensitive areas.
Why This Matters for Security Teams
When access reviews are limited to digital entitlements, they stop representing the full control surface. The result is not just a gap in documentation, but a gap in enforcement: badges, visitor permissions, lab access, and facility doors can remain active long after application access has been certified. That creates audit blind spots and weakens the evidence that least privilege is actually being maintained.
This is especially dangerous in environments where digital access and physical access are linked to the same operational role. An engineer may lose VPN or application access during a review while retaining access to a server room, staging area, or sensitive office suite. NHI Management Group has consistently shown that identity failures are often broader than application access alone, and the Ultimate Guide to NHIs highlights how weak visibility and poor offboarding practices create persistent risk across identity types. In practice, many security teams discover this only after an incident, not during the certification campaign itself.
How It Works in Practice
effective access reviews need to be scoped to the actual ways a person or system can reach sensitive assets. For humans, that means pairing application entitlements with physical access, badge issuance, visitor approvals, and privileged facility permissions. For workloads, it means reviewing the full identity path, including service accounts, API keys, and other secrets that may support access to operational systems. The control objective is simple: every path to a protected resource should have a reviewable owner, a current business justification, and an offboarding trigger.
In practice, teams should reconcile multiple sources of truth. IAM may show digital access, physical security systems may show door permissions, and HR or contractor systems may show employment status. If those records are not joined, reviewers can approve one layer while missing another. That is why current guidance from NIST SP 800-53 Rev. 5 Security and Privacy Controls is best applied as a cross-domain control activity, not as an application-only checklist. The same logic appears in the OWASP Non-Human Identity Top 10, where incomplete lifecycle visibility is a recurring risk pattern.
- Map every entitlement class, including badges, physical zones, and privileged rooms.
- Assign a business owner for each access type, not just each application.
- Reconcile access reviews against HR, contractor, and facility records before certification.
- Require revocation evidence for both digital and physical access when a role ends.
Where this guidance breaks down most often is in hybrid enterprises with outsourced facilities or multiple badge systems, because review evidence is fragmented across separate administrators and logs.
Common Variations and Edge Cases
Tighter certification scope often increases operational overhead, requiring organisations to balance stronger assurance against slower review cycles and more coordination. That tradeoff becomes especially visible when physical access is managed by a different team, a different vendor, or a different legal entity.
There is no universal standard for this yet, but current practice suggests that high-risk environments should treat physical access as a first-class entitlement rather than a side record. That includes labs, datacentres, executive floors, and areas where regulated data or production systems are exposed. Where mobile badges, shared contractors, or temporary escorts are used, the review process should capture time-bounded approvals and exception handling, not just permanent access.
For NHI and agentic environments, the same problem appears when access reviews ignore workload identities and secret material. A service account can retain effective access long after a human operator has changed roles, and the NHI Lifecycle Management Guide shows why revocation, rotation, and ownership tracking must be continuous. NHIMG research also notes that only 20% of organisations have formal offboarding processes for revoking API keys, which reinforces how easily review programs can miss non-digital or non-obvious access paths.
The practical takeaway is that a clean digital recertification report does not equal real access governance. If the review does not include physical and operational access paths, it is a partial control, not a complete one.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0, NIST SP 800-63, NIST AI RMF and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AA-1 | Access is not fully governed if physical and digital paths are reviewed separately. |
| NIST SP 800-63 | Identity proofing and binding matter when badge access is tied to authenticated identity. | |
| OWASP Non-Human Identity Top 10 | NHI-03 | Incomplete lifecycle review leaves non-human access paths active after role changes. |
| NIST AI RMF | GOVERN | Governance must cover all access paths, including physical and operational controls. |
| NIST Zero Trust (SP 800-207) | SP 800-207 | Zero Trust assumes continuous verification across all resources, not only applications. |
Include all access channels in one certification cycle and verify each entitlement has an accountable owner.
Related resources from NHI Mgmt Group
- How should security teams run access reviews for non-human identities?
- When do NHI access reviews create more value than a one-time cleanup?
- What breaks when SaaS access reviews focus only on accounts instead of entitlements?
- What breaks when access enforcement depends on a publicly reachable broker?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on July 10, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
