How should security teams combine IGA and PAM for privileged access?

Why This Matters for Security Teams

IGA and PAM solve different parts of the same problem. IGA governs who should have privileged access, while PAM controls how that access is issued, used, and removed. When teams rely on only one side, they create gaps between approval state and actual privilege state. That gap is where over-provisioning, stale entitlements, and weak evidence trails accumulate.

This is especially important for non-human identities, where standing access and long-lived secrets are common. NHI Management Group’s Ultimate Guide to NHIs notes that 97% of NHIs carry excessive privileges, and 71% are not rotated within recommended time frames. Those conditions make a strong case for pairing governance with runtime enforcement rather than treating access review as the end of the control.

The practical goal is not just cleaner approvals. It is to ensure that every privileged session is attributable, time-bound, and consistent with the identity lifecycle. In practice, many security teams discover the weakness only after a privileged account has remained active long after the approval changed, rather than through intentional control testing.

How It Works in Practice

A workable model starts with IGA as the system of record for entitlement decisions. IGA handles access requests, manager or app-owner approvals, periodic certification, and joiner-mover-leaver workflows. PAM then takes over at execution time by brokering privileged sessions, injecting credentials, recording activity, and revoking access when the task ends. That split matters because approval is a business decision, while session control is an enforcement decision.

For privileged human access, the cleanest pattern is to keep standing privilege out of the target system wherever possible. For example, IGA can approve eligibility for a privileged role, but PAM should issue the actual credential or session only when the task is initiated. For NHIs, the same idea maps to just-in-time credential issuance, short-lived tokens, and vault-backed secret delivery. The State of Non-Human Identity Security shows why this matters: 85% of organisations lack full visibility into third-party vendors connected via OAuth apps, which makes runtime control more important than periodic review alone.

• Use IGA to decide eligibility, approval, and recertification cadence.
• Use PAM to issue, broker, record, and revoke privileged access at the moment of use.
• Synchronise identity and session logs so auditors can see who approved access, who used it, and for how long.
• Prefer short-lived credentials and session-based elevation over persistent admin accounts.

Current guidance from OWASP Non-Human Identity Top 10 and the 52 NHI Breaches Analysis supports this separation because excessive privilege and weak rotation remain recurring breach drivers. These controls tend to break down when privileged workflows are embedded in automation pipelines that bypass PAM entirely because the pipeline is treated as trusted infrastructure.

Common Variations and Edge Cases

Tighter control over privileged access often increases operational overhead, so teams must balance speed against evidence quality and revocation discipline. That tradeoff becomes sharper in environments with many service accounts, machine-to-machine calls, or fast-moving engineering teams.

One common edge case is when IGA certifies access too broadly while PAM enforces too narrowly, creating friction that leads teams to request exceptions. Another is when PAM covers only interactive admin sessions but leaves API keys, CI/CD tokens, and service credentials outside its scope. For NHIs, that blind spot is often the real risk, because the credential itself is the privilege. NHI Management Group’s research on the Ultimate Guide to NHIs — Key Challenges and Risks highlights how over-privilege, poor rotation, and weak offboarding repeatedly combine into the same failure pattern.

Best practice is evolving toward a control model where IGA defines entitlement boundaries and PAM or vault controls enforce runtime access for both humans and NHIs. There is no universal standard for this yet, but the direction is clear: if a privileged credential can be used without a current approval state, the control stack is incomplete. That is the point where organisations should add policy checks, time limits, and revocation hooks instead of assuming certifications alone are enough.

Related resources from NHI Mgmt Group

• How should security teams keep privileged account inventories current in mature PAM programs?
• How should security teams validate privileged accounts in a vault-based PAM programme?
• What do security teams get wrong about using chat for privileged access?
• How should security teams govern access reviews when large parts of the environment are outside IGA scope?