How should organisations evaluate PAM when replacing an IGA platform?

Why This Matters for Security Teams

Replacing IGA with PAM sounds efficient until privileged access becomes a parallel control plane with its own approvals, reports, and exceptions. That creates blind spots in entitlement governance, especially where service accounts, API keys, and break-glass access remain outside normal lifecycle review. NHI Mgmt Group has found that only 5.7% of organisations have full visibility into their service accounts in the Ultimate Guide to NHIs, which is why privileged access cannot be assessed as an isolated tool purchase.

Security teams should evaluate whether PAM supports the same governance outcomes expected from IGA: ownership, justification, time-bounded elevation, reviewability, and offboarding. If it only secures vaults and sessions while lifecycle decisions happen elsewhere, the organisation may improve containment but weaken identity assurance. That gap matters because access sprawl rarely appears as a single failure; it accumulates through exception handling, unmanaged secrets, and missed revocation across systems. In practice, many security teams encounter overprivileged accounts only after an incident forces a privileged access review.

How It Works in Practice

Effective evaluation starts by mapping privileged access workflows against identity lifecycle controls. A PAM platform should not only broker elevation, but also preserve the context needed for governance: who approved access, why it was granted, what resource was touched, and when it expires. That context should flow into audit, compliance, and incident response processes without manual reconciliation. NIST guidance on access control and accountability in NIST SP 800-53 Rev 5 Security and Privacy Controls is useful here because it frames privileged access as a control objective, not just a vaulting function.

For replacement decisions, compare PAM against IGA across five practical questions:

• Does it discover and classify privileged human and non-human accounts continuously?
• Can it enforce just-in-time elevation and time-bound session access?
• Does it support periodic review of standing privilege and exceptions?
• Can it revoke access quickly when a user, service, or integration changes?
• Does it integrate with SIEM, ticketing, and workflow systems so governance evidence is durable?

This is especially important for non-human identities, where credentials often persist in code, CI/CD pipelines, or automation tooling. The difference between good PAM and weak PAM is not whether a session is recorded, but whether the organisation can prove that the privilege should have existed at all. The broader NHI market guidance in the Ultimate Guide to NHIs — The NHI Market is useful for distinguishing vaulting from lifecycle governance.

These controls tend to break down in heavily automated environments where developers can create ephemeral infrastructure faster than governance workflows can classify, approve, and revoke it.

Common Variations and Edge Cases

Tighter privileged control often increases operational overhead, requiring organisations to balance stronger containment against slower delivery, more exceptions, and more policy tuning. That tradeoff is real, and current guidance suggests it should be handled explicitly rather than hidden behind tool consolidation. If the environment contains large numbers of service accounts, machine-to-machine credentials, or delegated admin roles, a PAM-only approach may reduce exposure without solving lifecycle accountability.

There is no universal standard for this yet, but the best practice is evolving toward unified visibility across human and non-human privilege. That means PAM should be assessed alongside IGA, not simply instead of it. In environments with shared admin credentials, legacy platforms, or third-party operators, governance breaks down fastest when ownership is ambiguous and revocation depends on tribal knowledge. For those cases, the evaluation should ask whether the platform can support auditable exception handling, not just vaulted credential release.

Where privileged access is tied to cloud automation or agentic workflows, the question becomes whether the control model can attribute actions to a real principal and preserve evidence across tools. If it cannot, the programme is likely to recreate fragmentation under a different product label, even if the vault itself is strong.

Related resources from NHI Mgmt Group

• How should organisations evaluate an IGA platform beyond analyst rankings?
• How should organisations govern access when identity controls are spread across IGA, AM, and PAM?
• How should organisations split responsibilities between IGA and PAM?
• Should organisations treat service accounts as part of PAM or IGA first?