Notifications
Clear all
Topic starter
25/08/2026 6:10 pm
TL;DR: IAM and IGA solve different layers of identity security, with IAM enforcing authentication, authorization, and provisioning while IGA governs whether access remains appropriate through reviews, certifications, and entitlement context, according to Linx Security. The gap between them is where orphaned accounts, excess access, and unmanaged non-human identities accumulate, and continuous feedback between the two is now a programme requirement, not a nice-to-have.
NHIMG editorial — based on content published by Linx Security: IGA vs. IAM: Understanding the Different Roles in Modern Identity Security
Questions worth separating out
Q: How should security teams divide responsibility between IAM and IGA?
A: Security teams should use IAM for authentication and access enforcement, and IGA for entitlement governance, certifications, and removal.
Q: Why do organisations need IGA if IAM already controls access?
A: IAM controls whether access works, but IGA controls whether access is still justified.
Q: What breaks when access reviews lack reviewer context?
A: Reviewers cannot distinguish legitimate access from unnecessary access if they only see a name and a checkbox.
Practitioner guidance
- Map the execution and governance boundary Separate what IAM enforces at runtime from what IGA must validate over time.
- Add entitlement context to every certification workflow Require reviewers to see entitlement-level detail, ownership, risk, and last-use signals before they approve or revoke access.
- Extend lifecycle ownership to non-human identities Assign named owners, review cadences, and offboarding triggers for service accounts, API keys, automation identities, and agentic systems.
What's in the full article
Linx Security's full article covers the operational detail this post intentionally leaves for the source:
- A side-by-side walkthrough of IAM and IGA capabilities across authentication, provisioning, certification, and remediation.
- Examples of where orphaned accounts, excess access, and entitlement blind spots appear in live identity environments.
- A practical comparison table that maps identity tasks to the right control layer for workforce and non-human identities.
- The vendor's broader platform framing for unified identity security workflows and lifecycle coverage.
👉 Read Linx Security's analysis of IAM and IGA in modern identity security →
IAM vs. IGA: where access enforcement stops and governance starts?
Explore further
View Full Forum → | NHI Foundation Course → | Our Services →
25/08/2026 6:11 pm
IAM and IGA are not overlapping labels for the same control. IAM is the execution layer that decides and enforces access at runtime. IGA is the governance layer that asks whether that access still belongs there after business context changes. Treating them as interchangeable produces the exact blind spots that modern identity programmes are trying to eliminate.
A few things that frame the scale:
- 88.5% of organisations acknowledge that their non-human IAM practices lag behind or are merely on par with their human identity and access management efforts, according to The 2024 Non-Human Identity Security Report.
- Only 35.6% of organisations cite managing consistent access across hybrid and multi-cloud environments as their top NHI security challenge, which explains why entitlement sprawl is still underestimated.
A question worth separating out:
Q: How should organisations govern non-human identities alongside human IAM?
A: Treat non-human identities as a separate control population with their own inventory, ownership, lifecycle, and reporting. Service accounts, API keys, tokens, certificates, and AI agent credentials should not be folded into generic IAM metrics. That separation makes privilege review, rotation, and offboarding measurable and prevents hidden machine access from accumulating outside normal access governance.
👉 Read our full editorial: IAM vs. IGA: why access control and governance must stay linked
