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IGA vs IAM: where the governance gap starts for teams


(@nhi-mgmt-group)
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TL;DR: Identity and access management (IAM) handles authentication, access control, and basic lifecycle tasks, while identity governance and administration (IGA) adds reviews, policy enforcement, and auditability, according to JumpCloud. The distinction matters because security teams need both operational access control and governance evidence to keep access appropriate over time.

NHIMG editorial — based on content published by JumpCloud: Managing the differences between identity governance and administration and IAM

By the numbers:

Questions worth separating out

Q: How should teams decide whether to use IAM, IGA, or both?

A: Use IAM for identity execution tasks such as authentication, provisioning, and access control.

Q: Why do access reviews matter if IAM already enforces roles?

A: Role enforcement only proves that access was granted under a rule.

Q: What breaks when lifecycle automation is not governed?

A: Automation can keep creating, changing, and revoking access without checking whether the final state is still appropriate.

Practitioner guidance

  • Define IAM and IGA ownership separately Assign IAM teams responsibility for authentication, provisioning, and access enforcement, then assign IGA teams responsibility for certification, policy, and audit evidence.
  • Link lifecycle events to certification workflows Require access changes, temporary access, and revocation events to trigger review tasks in the governance process.
  • Review service accounts and application access on a governance cadence Extend recertification beyond human users to service accounts, API keys, and application roles.

What's in the full article

JumpCloud's full guide covers the operational detail this post intentionally leaves for the source:

  • Step-by-step breakdown of IAM and IGA responsibilities across authentication, provisioning, certification, and compliance reporting
  • Comparative examples of how lifecycle management works in IAM versus IGA workflows for access revocation and review
  • More detail on the specific functions of segregation of duties, entitlement management, and policy enforcement
  • The source article's own framing of where IAM stops and IGA begins for security and IT teams

👉 Read JumpCloud's guide to the differences between IAM and IGA →

IGA vs IAM: where the governance gap starts for teams?

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(@mr-nhi)
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Posts: 5343
 

IAM without IGA creates access, but not assurance. IAM is designed to make identity operations efficient, yet that efficiency alone does not answer whether access remains justified. When organisations stop at provisioning and authentication, they have execution without governance, which is a structural weakness for both human and non-human identities. The implication is that identity programmes need a separate governance layer that can challenge ongoing access, not merely issue it.

A few things that frame the scale:

  • Only 5.7% of organisations have full visibility into their service accounts, according to Ultimate Guide to NHIs.
  • 79% of organisations have experienced secrets leaks, with 77% of these incidents resulting in tangible damage.

A question worth separating out:

Q: Who is accountable when inappropriate access is discovered?

A: Accountability should sit with the access owner, the business approver, and the governance process that failed to review or revoke the entitlement. IAM can enforce the technical action, but IGA provides the evidence trail needed to determine why access remained active and who was responsible for approving it.

👉 Read our full editorial: IGA vs IAM: where governance starts and access control ends



   
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