How should security teams close IAM compliance gaps without replacing IAM?

Why This Matters for Security Teams

IAM can authenticate a user or workload, but it does not, by itself, prove that every entitlement is still justified, reviewed, and removed on time. That is where compliance gaps appear: stale access, unapproved privilege, and audit evidence that is too thin to satisfy control owners. Current guidance from the NIST Cybersecurity Framework 2.0 and NHIMG’s Ultimate Guide to NHIs — Regulatory and Audit Perspectives both point to governance as the missing layer, not a wholesale replacement of IAM.

The practical risk is especially visible for secrets, service accounts, API keys, and machine access that grow quietly across cloud, SaaS, and automation platforms. NHIMG’s Top 10 NHI Issues highlights how access sprawl and weak lifecycle controls turn into audit findings long before they become incidents. Aembit’s 2024 Non-Human Identity Security Report found that 88.5% of organisations say their NHI practices lag behind or only match their human IAM efforts, which is a clear signal that the gap is governance, not authentication.

Security teams usually discover the gap when an auditor asks who approved the access, who reviewed it, and why it still exists months later, not when the entitlement was first granted.

How It Works in Practice

The cleanest model is to keep IAM as the system of record for authentication and access enforcement, then add identity governance and administration for the control plane around it. That means approvals, periodic access reviews, remediation tracking, and evidence collection live above IAM, while IAM continues to issue, enforce, and revoke access. This aligns well with NIST SP 800-53 Rev 5 Security and Privacy Controls and ISO-style control families for account management, access review, and auditability.

For non-human identities, the operational steps usually look like this:

• Classify every entitlement by risk, owner, and business purpose before granting it.
• Route high-risk access through approval workflows with named reviewers and expiry dates.
• Attach time-bounded access reviews to privileged, shared, or externally reachable accounts.
• Track remediation to closure so revocation, rotation, or deprovisioning is evidenced, not assumed.
• Prefer short-lived secrets and JIT access where the platform supports it, especially for automation.

This is where NHIMG’s Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs is useful: the lifecycle has to include request, approval, issuance, review, rotation, and removal, otherwise compliance evidence fragments across teams. The goal is not only to know who can access what, but to prove that access was intentionally granted and actively maintained. In practice, teams also need a consistent audit trail linking ticketing, IAM events, and remediation records, because that is what closes the evidence gap during control testing. These controls tend to break down in hybrid and multi-cloud environments because entitlement data, ownership, and revocation events are spread across disconnected consoles and pipelines.

Common Variations and Edge Cases

Tighter governance often increases workflow overhead, so organisations have to balance control depth against delivery speed and operations load. That tradeoff is real, especially for DevOps teams that expect self-service access and fast turnaround. Best practice is evolving, but current guidance suggests using risk-based reviews rather than treating every entitlement the same.

Some environments need special handling. Shared service accounts, break-glass access, and third-party integrations may not fit standard approval chains, but they still need compensating controls such as expiry, owner attestation, or post-use review. For machine credentials, static long-lived secrets are a compliance liability because they are hard to justify, hard to rotate, and hard to evidence. Aembit’s report notes that 59.8% of organisations see value in simplifying non-human access management with dynamic ephemeral credentials, which reinforces the shift toward short-lived access for high-risk use cases.

For teams building maturity, the answer is usually not a new IAM platform. It is better control mapping, stronger access governance, and cleaner lifecycle evidence across the stack. NIST AI RMF is not the right primary framework for this question, but the same governance logic applies: assign accountability, document decision points, and make revocation visible. That is also consistent with the ISO/IEC 27001:2022 Information Security Management emphasis on accountable control operation.

Related resources from NHI Mgmt Group

• How should security teams govern non-human identities for compliance?
• How should security teams govern non-human identities for SOC 2 compliance?
• How should security teams implement continuous identity without replacing IAM and PAM?
• How should security teams implement continuous identity without replacing their IAM stack?