They should treat the identity lifecycle as a single governance problem and map every joiner, mover, and leaver event to both IAM and PACS. If one system deactivates access and the other does not, accountability breaks. The goal is not parallel administration. It is one authoritative identity decision that propagates across all relevant access paths.
Why This Matters for Security Teams
When digital access and physical access are split across separate platforms, the identity problem becomes a governance problem, not just an integration problem. A user can be removed from IAM but still hold a badge, or lose badge access while still retaining application access. That gap breaks accountability, complicates investigations, and weakens offboarding. NHI Mgmt Group’s Ultimate Guide to NHIs notes that only 20% of organisations have formal processes for offboarding and revoking API keys, which reflects how often lifecycle control fails when ownership is fragmented.
The practical mistake is assuming each system can manage identity independently as long as both are “covered.” In reality, a joiner, mover, or leaver event is one authoritative decision that must propagate to every access path, including physical access control systems and logical entitlements. That is consistent with the direction of the NIST Cybersecurity Framework 2.0, which treats identity governance, access control, and resilience as linked functions rather than isolated controls. In practice, many security teams discover the split only after an employee, contractor, or terminated account has already retained one valid path of access.
How It Works in Practice
Effective governance starts with a single source of truth for identity status, then maps that state to downstream systems through automated workflows. The identity record should drive both IAM and PACS events so that creation, modification, suspension, and termination are handled as one lifecycle. Where systems cannot be directly integrated, current guidance suggests compensating with event orchestration, reconciliation checks, and exception reporting rather than relying on manual coordination.
Practitioners should define which system is authoritative for each attribute, then enforce policy so changes are not duplicated by local administrators. For example, employment status, contractor end dates, and sponsor approval should trigger access changes in both environments. This is also where OWASP Non-Human Identity Top 10 is useful, because the same lifecycle discipline applies to service identities, badges, tokens, and device credentials: if any access path outlives the approved identity state, exposure remains.
- Use one authoritative identity decision for joiner, mover, and leaver events.
- Synchronise IAM and PACS through automated provisioning and deprovisioning workflows.
- Reconcile access regularly to detect orphaned badges, accounts, and exceptions.
- Require compensating approvals for any manual override and time-limit the exception.
For a broader lifecycle lens, the Lifecycle Processes for Managing NHIs section is directly relevant because it frames identity control as provisioning, rotation, revocation, and offboarding, not just login administration. These controls tend to break down when physical access is managed by facilities teams with separate approval chains and no shared deprovisioning SLA.
Common Variations and Edge Cases
Tighter cross-system governance often increases operational overhead, requiring organisations to balance stronger assurance against integration cost and exception handling. That tradeoff matters most in environments with contractors, shared workspaces, third-party facilities, or legacy badge systems that cannot consume modern IAM events. There is no universal standard for this yet, so best practice is evolving toward continuous reconciliation and auditable exception management rather than perfect real-time synchronisation.
Edge cases usually appear when identity attributes do not match neatly across systems. A terminated employee may still need escorted site access for asset return, a vendor may require temporary physical access but no logical access, or an emergency override may be needed during an incident. These cases should be explicitly time-bound and reviewable. The Regulatory and Audit Perspectives guidance is useful here because auditors typically care less about the platform split than about whether access decisions are consistent, documented, and reversible. For teams benchmarking control maturity, the 52 NHI Breaches Analysis shows how lingering access paths often become visible only after an incident, not during routine review.
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 AI RMF and NIST SP 800-63 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AC-4 | Identity events must propagate across all access paths, including physical systems. |
| OWASP Non-Human Identity Top 10 | NHI-05 | Split governance often leaves orphaned service and badge-style credentials behind. |
| CSA MAESTRO | IDM | Agentic identity management emphasizes lifecycle control across automated access paths. |
| NIST AI RMF | GOVERN | Unified identity governance supports accountability and oversight across linked systems. |
| NIST SP 800-63 | IAL2 | Identity proofing and lifecycle assurance underpin trustworthy access decisions. |
Assign clear ownership for identity decisions and track whether controls work across all environments.
Related resources from NHI Mgmt Group
- How should organisations govern access when identity controls are spread across IGA, AM, and PAM?
- How should organisations govern access across many APIs in a digital transformation programme?
- How should organisations govern identity risk across human, NHI, and automated access?
- How should organisations govern reusable digital identity across multiple services?
