Centralised identity management organises identities in one place, while lifecycle governance ensures those identities gain, change, and lose access at the right time. A central directory can still leave access drift if entitlement removal, app-level revocation, and exception handling are weak. Governance is the control objective; centralisation is only the mechanism.
Why This Matters for Security Teams
Centralised identity management is often treated as a complete answer because it gives security teams one place to issue, view, and authenticate identities. That can improve visibility, but it does not by itself ensure access is removed when a service account, API key, or automation no longer needs it. Lifecycle governance is the control objective: it covers provisioning, change management, rotation, review, exception handling, and offboarding across the full identity lifespan.
This distinction matters because non-human identities tend to accumulate faster than human ones, and weak revocation is a common failure mode. NHIMG research notes that only 20% of organisations have formal processes for offboarding and revoking API keys, and even fewer have procedures for rotating them, which creates long-lived access drift. The Ultimate Guide to NHIs and the OWASP Non-Human Identity Top 10 both frame this as a governance problem, not just a directory problem.
In practice, many security teams discover the gap only after a deprecated token is still working in production or a service account remains active long after the owning workload has changed.
How It Works in Practice
Centralised identity management usually means identities, credentials, and authentication events are administered through a shared control plane such as an identity provider, vault, directory, or secrets platform. That centralisation helps standardise onboarding and improve auditability, but lifecycle governance asks a different question: what happens after the identity is created?
Effective lifecycle governance ties identity state to business and technical events. For NHI, that includes workload creation, deployment changes, ownership transfer, rotation windows, certificate expiry, application decommissioning, and emergency revocation. The Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs is useful here because it treats lifecycle as an operational sequence rather than a one-time provisioning task. The NIST Cybersecurity Framework 2.0 reinforces the broader principle: identity controls only work when they are mapped to ongoing risk management, not static inventory.
A practical implementation usually includes:
- central inventory of NHIs and their owners, systems, and trust boundaries
- automated approval and provisioning for new access
- scheduled rotation or short-lived credentials where possible
- event-driven revocation when a workload is retired or reconfigured
- recertification for exceptions and high-risk entitlements
Without this linkage, a central directory becomes a source of truth for existence, but not for entitlement validity. That is why centralised management can coexist with serious secrets sprawl, stale permissions, and orphaned service accounts. These controls tend to break down when provisioning is centralised but revocation is left to application teams with inconsistent release and retirement processes.
Common Variations and Edge Cases
Tighter lifecycle governance often increases operational overhead, requiring organisations to balance faster delivery against more frequent reviews, rotations, and exception handling. That tradeoff is real, especially in cloud-native environments where workloads are ephemeral and release cycles are continuous.
Current guidance suggests a few common patterns. Some organisations centralise identity issuance but decentralise approval based on application ownership, which can work if revocation remains automated. Others use the same vault or identity provider for all credentials, but still suffer drift because apps cache tokens, custom scripts bypass the vault, or certificates outlive their intended use. In those cases, centralisation is not the problem, it is the absence of lifecycle enforcement.
There is no universal standard for this yet, but best practice is evolving toward event-driven governance, short-lived credentials, and continuous entitlement review. The Guide to the Secret Sprawl Challenge and the NHI Lifecycle Management Guide both highlight the same operational reality: if ownership, expiry, and offboarding are not explicit, centralisation simply makes stale access easier to overlook.
Where environments rely on embedded secrets in legacy apps, long-running batch jobs, or third-party integrations without revocation hooks, lifecycle governance becomes partial rather than complete because the system cannot reliably signal when access should end.
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 address the attack and risk surface, while NIST CSF 2.0 and 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-03 | Addresses weak rotation and revocation that create lifecycle drift. |
| NIST CSF 2.0 | PR.AC-4 | Supports least-privilege access management across identity lifecycles. |
| NIST CSF 2.0 | ID.AM-5 | Lifecycle governance depends on knowing where identities and entitlements exist. |
Track NHI rotation and revocation by owner, expiry, and exception status.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on June 11, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
