Manual lifecycle management breaks first at scale. Expiry handling becomes inconsistent, revocation is slow, and ownership is unclear when credentials are embedded across many applications and environments. In practice, that means outages, unrevoked access and weak auditability when trust assumptions change.
Why This Matters for Security Teams
Partial manual control is not just an efficiency problem. It breaks the security model that machine identities depend on: consistent issuance, rotation, revocation, and ownership. When those steps are handled by tickets, spreadsheets, or ad hoc approvals, trust changes lag behind reality and expired or overprivileged identities remain in service. NHIMG research on lifecycle management shows why this becomes operational debt quickly, especially when identities are embedded across CI/CD, cloud services, and partner integrations.
Current guidance from the OWASP Non-Human Identity Top 10 and the NIST Cybersecurity Framework 2.0 both point toward repeatable control, traceability, and timely response as core requirements. That matters because machine identities do not fail gracefully when owners are unclear or expiration is missed. Even one missed revocation can leave access active long after a workload, service account, or certificate should have been retired.
In practice, many security teams discover the impact only after an outage, a failed audit, or an incident involving an identity no one can confidently own.
How It Works in Practice
machine identity lifecycle management depends on a closed loop: discover the identity, assign ownership, set purpose and scope, issue credentials, rotate them, monitor usage, and revoke them when the workload changes or ends. Manual steps weaken that loop because they introduce delay and inconsistency. A certificate might be renewed in one environment but forgotten in another. A token may be rotated in production while a test clone keeps the old value. A service account may survive long after the application that used it has been decommissioned.
NHIMG’s NHI Lifecycle Management Guide and the Ultimate Guide to NHIs both emphasize that lifecycle discipline is more than inventory. It requires authoritative ownership, policy-driven expiry, and reliable revocation paths across all places an identity can exist. That is why manual tracking often fails when identities are duplicated across Kubernetes, cloud IAM, secrets managers, and application configuration.
- Expiration handling becomes inconsistent, which increases outage risk.
- Revocation is delayed, so compromised or stale identities stay valid longer.
- Ownership is unclear, which slows incident response and audit evidence collection.
- Shadow copies of secrets or certificates persist outside the system of record.
Entro Security’s research in The 2025 State of NHIs and Secrets in Cybersecurity found that 61% still rely on spreadsheets or manual tracking for machine identity management, while only 38% have automated certificate lifecycle management in place. Those conditions tend to break down when identities are shared across many deployment pipelines and change windows are handled manually, because human handoffs cannot keep pace with machine-to-machine churn.
Common Variations and Edge Cases
Tighter lifecycle control often increases operational overhead, requiring organisations to balance automation coverage against the reality of legacy systems and brittle integrations. That tradeoff is real, but it should not be used to justify indefinite manual handling. Current guidance suggests phasing automation by identity class, starting with the highest-risk secrets, certificates, and service accounts that can cause broad blast radius if left unchecked.
One common edge case is a hybrid environment where some workloads support automated renewal and others still require operator intervention. In those environments, teams should separate “manual exception” handling from standard renewal paths and make exception expiry explicit. Another edge case is a shared identity used by multiple apps. NHIMG’s Top 10 NHI Issues highlights why shared credentials are especially risky: if ownership is unclear, the credential tends to persist because no team wants to break an unknown dependency.
There is no universal standard for every lifecycle workflow yet, but the operational direction is clear: reduce manual touchpoints, define a system of record, and make revocation deterministic. Manual processes can survive short-term for exceptions, but they become fragile when certificate counts grow, environments multiply, or application teams bypass the central process to avoid delays.
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 | Covers poor rotation and lifecycle handling for non-human identities. |
| NIST CSF 2.0 | PR.AC-1 | Identity and access control depends on accurate, timely management of machine access. |
| NIST CSF 2.0 | ID.AM-1 | Asset inventory is required to avoid unknown or unmanaged machine identities. |
Automate NHI issuance, rotation, and revocation so expired credentials cannot linger in production.
