Separate PAM and IGA systems force teams to integrate the same target systems twice, maintain two user experiences, and coordinate manual work between tools. That increases implementation effort, training burden, and administrative cost. It also makes it easier to over grant access when the process is cumbersome, because users and admins may choose the simplest path instead of the least privileged one.
Why Separate PAM and IGA Increases Operational Friction
PAM and IGA solve different control problems, but splitting them into separate platforms usually duplicates the work that makes both effective. Teams end up defining users, entitlements, approval paths, and target-system connections twice, then reconciling the two views when something changes. That creates more handoffs, more failure points, and more time spent keeping policy aligned than enforcing it.
The practical cost is not just licensing or administration. Separate systems often produce inconsistent experiences for approvers, operators, and auditors, which makes it harder to tell whether a privilege was granted because it was justified or because it was the easiest path through the process. When the control plane feels cumbersome, people work around it, and the least privileged option is usually the one that loses.
Where the Duplicate Work Actually Appears
The first place the separation hurts is integration. PAM typically controls privileged sessions, credential checkout, and just-in-time elevation, while IGA handles access requests, approvals, recertification, and joiner-mover-leaver workflows. If they are not coordinated, every target system, entitlement, and account relationship has to be mapped in both tools so that requests, approvals, and enforcement stay consistent.
That duplication also affects daily operations. Admins spend time synchronising role definitions, fixing mismatched account states, and resolving exceptions when one system says access exists and the other says it does not. In practice, the organisation pays twice: once to build the control path, and again to maintain the translation layer between the control path and the enforcement layer. The result is slower onboarding, slower removals, and slower privilege changes.
- Two user experiences instead of one means more training and more support requests.
- Two policy models means more drift between approved access and enforced access.
- Two audit trails means more effort to reconstruct who approved what and when.
- Two workflows means more opportunities to bypass controls when deadlines are tight.
Risk and Threat Considerations
Separation increases exposure because cumbersome access paths encourage users and administrators to take shortcuts, especially when time pressure is high. When teams cannot get the right access through the normal process quickly, they may request broader standing access, reuse shared privilege paths, or delay revocation, all of which expand blast radius and make excess privilege more likely.
Failure mechanism: Fragmented PAM and IGA controls create inconsistent entitlement records, slower approvals, and manual exceptions that weaken least privilege and make over-granting the path of least resistance.
Impact: Organisations lose both control quality and operational speed, which raises the chance of privilege creep, delayed deprovisioning, audit friction, and avoidable remediation work.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
CIS Controls v8 and NIST CSF 2.0 set the technical controls, while ISO/IEC 42001:2023 define the regulatory obligations.
| Framework | Control / Reference | Relevance |
|---|---|---|
| CIS Controls v8 | 6 — Access Control Management | PAM and IGA separation increases access-control friction and privilege drift. |
| Recommendation — Consolidate access control workflows to reduce excess privilege and manual exceptions. | ||
| NIST CSF 2.0 | PR.AA-04 — Access Permissions | The topic is about managing and enforcing permissions consistently across systems. |
| PR.AC-1 — Identity and Credential Management | Separate systems create duplicated identity and entitlement administration. | |
| GV.RM-05 — Risk Management Strategy | The cost and risk come from duplicated processes and fragmented governance. | |
| Recommendation — Align request, approval, and enforcement paths so permissions stay consistent. Unify identity and entitlement records to reduce drift between control planes. Assess whether separate controls create avoidable operational and privilege risk. | ||
| ISO/IEC 42001:2023 | A.5.5 — Responsibilities and Authorities for Roles Related to AI? | Not selected |
Practitioner Guidance
What to prioritise: Treat the user journey as the control boundary. If a request, approval, elevation, and revocation cannot be completed with one coherent policy model, the environment is already paying a hidden cost in exceptions and compensating work. Map the highest-volume privileged workflows first, not the rarest edge cases.
What to verify: Check whether the same target system, account, and entitlement are governed consistently across both platforms, and whether revocation in one system is actually reflected in the other. The strongest indicator of a healthy setup is not feature completeness, but whether operators can complete routine access changes without manual reconciliation.
Common mistake: Organisations often preserve separate tools because each appears to solve a different problem, then underestimate the overhead of keeping their data, approvals, and enforcement in sync. That separation is most expensive when the environment is large, fast-moving, or heavily audited.
Practitioner takeaway: The question is not whether PAM and IGA can coexist, but whether the combined operating model reduces friction enough that least privilege remains the easiest path for real users.
Related resources from NHI Mgmt Group
- Why do cloud ERP implementations increase identity and access risk compared with on-premise systems?
- Why do Salesforce integrations increase NHI risk?
- Why do separate IGA and PAM systems create governance blind spots?
- Why do disconnected IAM and PAM systems increase credential theft and privilege escalation risk?
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on September 20, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
