Topic starter
23/03/2026 2:06 pm
TL;DR: Identity security is defined as managing who or what can access resources by context and risk, while IAM and IGA handle login, authorization, and governance, according to Oleria Security. In the AI era, that distinction matters because static roles and periodic reviews do not contain over-permissioned non-human identities or AI assistants.
Editorial analysis by NHI Mgmt Group, based on content published by Oleria Security: “Identity security vs. IAM vs. IGA: Understanding the differences”.
Key questions
Q: How should security teams reduce authentication risk for non-human identities?
A: Start by treating service accounts, tokens, and API keys as governed identities with owners, scope, and expiry.
Q: Why do IAM and IGA miss some AI-era access risks?
A: IAM proves that an identity can log in and reach a resource, while IGA proves that access was approved and reviewed.
Q: What are the signs that identity governance is being misapplied in AI-enabled environments?
A: Common warning signs include incorrect access denials, missed threat signals, unexplained over-privilege, and users whose permissions no longer match their actual roles.
Practitioner guidance
- Audit over-permissioned identities across human and non-human estates Compare assigned entitlements with actual usage in SaaS, cloud, and directory systems, then remove permissions that have no operational justification.
- Build continuous context into access decisions Combine identity data with usage signals such as time, location, device, and system interaction patterns so risk reviews reflect how access is really being used.
- Separate governance for approvals from governance for behavior Keep access review and certification workflows, but add monitoring that detects when AI assistants or service accounts use access in ways that exceed intended scope.
Bottom line: Identity security sits above IAM and IGA because it evaluates access in context, not just at login or review time.
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This topic was modified 6 days ago by NHI Mgmt Group
06/10/2026 4:25 pm
Identity security is becoming the control plane for AI-era access risk: IAM and IGA still do their jobs, but neither is designed to answer whether access remains safe as usage patterns change. That is the governance gap organisations now face. The practical conclusion is that identity security has to sit above both, because context and behaviour are now the deciding variables.
A few things that frame the scale:
- Nearly 60% of IT leaders cite restrictive cost and complexity as a weakness of legacy identity governance, according to the 2025 State of Identity Governance Report.
A question worth separating out:
Q: What should organisations do when access is approved but still feels too broad?
A: Re-evaluate the privilege scope against current usage, business need, and the identities that can exercise it. Approved access is not automatically safe if it can be reused by assistants, scripts, or service accounts at scale. The practical test is whether the access is still right-sized for the actor and the task.
👉 Read our full editorial: Identity security vs. IAM and IGA in the AI era