Ownership should sit with identity governance, physical security, and business process owners together, because no single team sees the full lifecycle. If the systems share a control plane, accountability must also be shared across provisioning, review, and revocation decisions.
Why This Matters for Security Teams
Mixed physical and digital access fails when organisations assume badge issuance, account provisioning, and device trust can be governed in separate silos. A contractor with a valid badge but stale digital access, or an employee with removed system privileges but active facility access, can bypass both intent and oversight. Governance has to cover the full lifecycle, not just individual checkpoints.
This is why identity governance, physical security, and business process owners need a shared ownership model. NIST’s NIST Cybersecurity Framework 2.0 emphasizes governance as a cross-functional obligation, while NHIMG’s Top 10 NHI Issues highlights lifecycle gaps as a recurring cause of exposure. The practical lesson is that ownership should follow control points, not org charts, because access risk spans entry systems, identity stores, and approval workflows at once.
In practice, many security teams encounter the gap only after a badge, token, or application account is misused outside the process that originally issued it.
How It Works in Practice
The cleanest operating model is shared accountability with a single policy baseline and domain-specific execution. Identity governance should own digital entitlement standards, joiner-mover-leaver workflows, and review cadence. Physical security should own badge issuance, visitor access, escort rules, and facility exceptions. Business process owners should define who needs access, for what purpose, and under what conditions. The control objective is one decision model, even if different teams execute different steps.
That model works best when physical and digital access events are reconciled through the same authoritative identity record. When a person changes role, leaves a project, or exits the organisation, revocation should trigger across badge systems, application accounts, remote access, and any shared control plane. NIST control guidance in NIST SP 800-53 Rev 5 Security and Privacy Controls reinforces least privilege, separation of duties, and timely revocation. NHIMG’s Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs is a useful reference for how lifecycle ownership should be made operational, even though the same lifecycle discipline applies to people-based access as well.
- Use one access policy and multiple execution systems.
- Assign a named owner for provisioning, review, and revocation in each domain.
- Reconcile physical and digital access at the same cadence as entitlement reviews.
- Escalate exceptions through a documented risk acceptance process.
Where this guidance breaks down is in environments with fragmented merger-era tooling, because duplicate identities and inconsistent source-of-truth records make cross-domain revocation unreliable.
Common Variations and Edge Cases
Tighter cross-domain governance often increases operational overhead, requiring organisations to balance faster access fulfilment against stronger revocation assurance. That tradeoff becomes more visible in plants, labs, hospitals, and regulated sites where emergency access, after-hours entry, and temporary contractors create exceptions that cannot be handled by standard workflows alone.
There is no universal standard for this yet, but current guidance suggests that ownership should shift by risk and control plane rather than by asset type. For example, a shared lobby badge may stay with facilities operations, while high-risk areas with system-admin workstations may require joint approval from security and IT. The same logic applies to third-party access: if a vendor can enter the building and also reach internal systems, then both physical and digital approvals need a common review record. NHIMG’s Ultimate Guide to NHIs and 52 NHI Breaches Analysis are strong reminders that lifecycle gaps and weak revocation are where control failures tend to accumulate.
OWASP’s OWASP Non-Human Identity Top 10 is relevant here because the same governance failures often appear wherever an identity can act across multiple systems or environments. Mixed-access programmes fail most often when exception handling becomes the real process and the documented owner is no longer the actual decision-maker.
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 and CSA MAESTRO address the attack and risk surface, while NIST CSF 2.0, NIST SP 800-63 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | GV.OV-01 | Shared ownership and oversight are central to mixed access governance. |
| NIST SP 800-63 | IAL/AAL/FAL | Identity proofing and authenticator assurance affect access issuance decisions. |
| OWASP Non-Human Identity Top 10 | NHI-01 | Lifecycle and ownership gaps mirror common NHI governance failures. |
| NIST AI RMF | GOVERN | Cross-functional accountability is required for high-impact automated decisions. |
| CSA MAESTRO | GOV-01 | Agent and automation governance principles map well to shared access control ownership. |
Document accountability, escalation, and exception handling before delegating access decisions.
