Yes. PAM should continue to manage human privileged sessions, while NHI governance should handle machine identity discovery, ownership, rotation, and retirement. The two control sets overlap in the privileged domain but solve different identity problems, so using only one leaves blind spots.
Why This Matters for Security Teams
PAM and nhi governance solve adjacent but different problems. PAM is built to control human-administered privileged sessions, approvals, and elevation paths. NHI governance is about discovering machine identities, assigning ownership, managing secrets, enforcing rotation, and retiring what is no longer needed. When both are treated as one programme, teams often assume existing PAM coverage automatically extends to service accounts, API keys, certificates, and cloud workloads. That assumption creates blind spots in inventory, lifecycle control, and incident response.
This matters because privileged access is now distributed across humans, software, and automation. The Astrix Security & CSA study on NHI security found that only 1.5 out of 10 organisations are highly confident in their ability to secure NHIs, which is a strong signal that the machine side of the control plane is still immature. Security teams should anchor their approach in NIST Cybersecurity Framework 2.0 functions for governance, protection, and detection, while using PAM only where a human is actually in the loop. In practice, many security teams discover the gap only after an exposed secret or orphaned service account has already been abused, rather than through intentional lifecycle control.
How It Works in Practice
The practical model is a layered one. PAM continues to broker human privileged access with approvals, session recording, and just-in-time elevation. NHI governance sits alongside it to manage non-human credentials and authority from birth to retirement. That means discovering every workload identity, service account, API token, certificate, and robot account; assigning an owner; defining intended use; setting rotation and expiry; and removing identities that no longer serve a business purpose.
For machine access, current guidance suggests using intent-based or context-aware authorisation rather than assuming a fixed role is enough. The privilege decision should be tied to what the workload is trying to do, from where, and under what policy. This is where identity inventory and lifecycle discipline matter: the NHI control plane should know what exists, who owns it, where it is used, and when it expires. The Ultimate Guide to NHIs and the lifecycle section in Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs are useful references for that operating model.
- Use PAM for human privileged sessions, break-glass access, and audited elevation.
- Use NHI governance for discovery, ownership, rotation, expiry, and retirement of machine identities.
- Issue short-lived secrets where possible, and prefer JIT credential provisioning over standing access.
- Correlate identity events with workload telemetry so dormant or anomalous machine access is visible.
For standards alignment, pair this with zero-trust thinking in NIST Cybersecurity Framework 2.0 and identity-centric policy enforcement. These controls tend to break down when cloud, DevOps, and SaaS teams manage secrets outside a central inventory because the organisation loses the ability to prove ownership or revoke access quickly.
Common Variations and Edge Cases
Tighter privileged control often increases operational overhead, requiring organisations to balance stronger assurance against deployment speed and developer friction. That tradeoff becomes sharper in environments with ephemeral infrastructure, microservices, and third-party integrations, where static approval flows can slow release cycles without materially improving security.
There is no universal standard for exactly where PAM ends and NHI governance begins, but best practice is evolving toward a clean split: human session control in PAM, machine lifecycle control in NHI governance, and shared telemetry between the two. In highly automated environments, the overlap can be managed by policy rather than tool boundaries, especially where workload identity and secrets are issued per task. For additional context on why this matters, see Top 10 NHI Issues and the incident analysis in BeyondTrust API key breach, which show how poorly governed machine credentials can become a direct privileged-access problem.
In regulated or audit-heavy sectors, the strongest pattern is to treat PAM evidence and NHI evidence as complementary: one proves who accessed what as a person, the other proves what machine identities exist, who owns them, and how they are controlled. That separation is especially important when service accounts are shared across apps or when secrets are embedded in CI/CD pipelines, because those cases blur ownership and weaken accountability.
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 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Rotation and lifecycle control are central to NHI governance. |
| NIST CSF 2.0 | PR.AC-4 | Least-privilege access applies to both humans and machine identities. |
| NIST AI RMF | AI governance principles fit autonomous workloads using machine identities. |
Assign ownership and runtime accountability for automated systems that act with privileged access.
