Security teams should extend governance to non-human identities by including ownership, lifecycle, and revocation controls in the same programme used for human users. If NHIs are excluded, the organisation will keep a blind spot in access certification and offboarding.
Why This Matters for Security Teams
When IGA is designed only around employees, NHIs become invisible exceptions: service accounts, API keys, OAuth apps, and automation tokens can keep access long after the business owner changes or the workload is retired. That gap undermines certification, offboarding, and separation of duties because the access does not map cleanly to a person-centric model. NIST’s Cybersecurity Framework 2.0 pushes organisations toward governance that is continuous and risk-based, which is exactly what NHI oversight requires.
NHI Management Group’s Ultimate Guide to NHIs shows why this matters operationally: 80% of identity breaches involved compromised non-human identities such as service accounts and API keys, and 91.6% of secrets remain valid five days after notification. Those numbers point to a governance failure, not just a detection problem, because the organisation has no dependable way to know who owns the credential, whether it is still needed, or when it should be revoked. In practice, many security teams encounter NHI exposure only after a leaked key, failed offboarding, or audit exception has already revealed the gap, rather than through intentional governance design.
How It Works in Practice
The practical answer is to extend the IGA operating model so every NHI is treated as an identity with an owner, purpose, lifecycle state, and revocation trigger. That means NHIs are brought into the same control plane as human users, but not managed identically. Human identity review cycles can remain role-based, while NHIs need workload-aware evidence: what system created them, what application depends on them, where they are stored, and what event should terminate them.
Security teams should start by classifying NHI types and binding each one to a responsible business or technical owner. Then they should require lifecycle metadata at issuance and at every change event, including creation date, expiry, rotation interval, upstream dependency, and approved use case. Where possible, use workflow-driven approval for new service accounts and keys, and make revocation part of offboarding, application retirement, and vendor disengagement.
- Inventory all NHIs from code, CI/CD, cloud consoles, SaaS integrations, and vaults.
- Assign a named owner and system dependency to each identity.
- Set rotation and expiry rules based on risk, not convenience.
- Include NHIs in access certification with evidence of continued need.
- Automate deprovisioning when the workload or vendor relationship ends.
This aligns with current guidance from the State of Non-Human Identity Security, which shows strong interest in dedicated NHI controls but uneven maturity. It also fits the broader direction of identity governance in NIST CSF 2.0, where ownership, monitoring, and recovery are continuous obligations rather than annual exercises. These controls tend to break down in highly automated environments with many ephemeral pipelines because asset discovery, ownership mapping, and revocation triggers are not kept in sync with deployment speed.
Common Variations and Edge Cases
Tighter governance over NHIs often increases operational overhead, requiring organisations to balance assurance against deployment friction. That tradeoff is real, especially where thousands of short-lived tokens, service accounts, and third-party integrations change faster than the IGA workflow can track them.
Current guidance suggests a tiered model: high-risk NHIs such as production service accounts, privileged automation, and vendor OAuth grants should receive full lifecycle governance, while lower-risk ephemeral identities can be handled through lighter-weight controls if their creation, expiry, and revocation are still logged. Best practice is evolving, and there is no universal standard for this yet, but the direction is clear: the identity review process must match how the workload behaves, not how humans are organised.
This is also where many programmes fail. If the IGA platform cannot ingest cloud and SaaS identity telemetry, it will miss shadow NHIs and treat them as noncompliant exceptions forever. If ownership is assigned to a team but not a named accountable person, revocation stalls during incidents and staff turnover. The 52 NHI Breaches Analysis and the Top 10 NHI Issues both reinforce a consistent lesson: governance only works when lifecycle control, visibility, and ownership are enforced together, not as separate projects.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 and CSA MAESTRO address the attack and risk surface, while NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Defines ownership and lifecycle gaps that let NHIs evade IGA. |
| NIST CSF 2.0 | PR.AC-4 | Covers access provisioning and revocation for identities, including NHIs. |
| CSA MAESTRO | GOV-01 | Supports governance of autonomous and machine identities across their lifecycle. |
Define accountability, policy, and lifecycle ownership for all machine and agent identities in one programme.
Related resources from NHI Mgmt Group
Deepen Your Knowledge
Reviewed and updated by the NHIMG editorial team on June 24, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
