They often assume that centralised password storage is equivalent to zero-trust access control. It is not. Zero trust requires narrow, continuously reviewed access and fast revocation. If many users can still access the same credentials, the organisation has improved organisation, not reduced trust.
Why Security Teams Misread Password Management as Zero Trust
Password management solves a storage and distribution problem. zero trust solves a decision problem. That distinction matters because centralising secrets in a vault or password manager can reduce sprawl while leaving access paths broad, durable, and poorly reviewed. NIST’s NIST SP 800-207 Zero Trust Architecture makes clear that access should be continuously evaluated, not assumed safe because it sits behind a repository.
The common mistake is treating a vault as evidence of strong governance when the real control question is who can retrieve what, under which conditions, and for how long. NHIMG’s Ultimate Guide to NHIs — Regulatory and Audit Perspectives shows why this distinction becomes critical when identities, not just passwords, are the unit of risk. If many users, pipelines, or service accounts still share the same secret, the organisation has merely improved organisation, not reduced trust. In practice, many security teams discover this only after an audit exception or credential exposure has already revealed how widely the secret was reused.
What Zero Trust Looks Like for Credentials in Practice
For password management to support zero trust, access must become narrow, time-bound, and observable. That means each retrieval should be tied to an explicit purpose, a known identity, and a current policy decision. Static sharing models, long-lived administrative passwords, and “break glass” accounts that stay active indefinitely all undermine the model, even if the secrets themselves are stored in a hardened vault.
Current guidance suggests teams should combine vaulting with strong identity proofing, just-in-time access, and rapid revocation. For workloads, that often means moving away from reusable credentials toward workload identity and short-lived tokens. NHIMG’s Ultimate Guide to NHIs — Lifecycle Processes for Managing NHIs and Guide to SPIFFE and SPIRE both reinforce the operational point: the secret is not the control, the identity and lifecycle around it are.
- Limit retrieval to specific roles, requests, or automation paths.
- Issue credentials only when needed, and revoke them immediately after use.
- Bind access to device, workload, session, and policy context.
- Log retrieval, usage, and failed access attempts for continuous review.
Teams often pair this with NIST CSF 2.0 governance and policy review, but the practical implementation is usually policy-as-code plus short-lived credentials, not a larger password repository. These controls tend to break down when shared admin credentials are embedded in legacy applications or vendor integrations because rotation and per-request authorization cannot be enforced cleanly.
Common Variations and Edge Cases
Tighter credential controls often increase operational overhead, requiring organisations to balance reduced blast radius against rollout friction. That tradeoff is especially visible in hybrid estates, CI/CD pipelines, and third-party access, where full replacement of shared secrets may take longer than the risk team would prefer. Current guidance suggests prioritising the highest-value credentials first rather than attempting a universal cutover.
There is no universal standard for every environment yet, so edge-case handling matters. Legacy systems may need compensating controls such as network segmentation, session monitoring, and aggressive rotation while they are refactored. Third-party OAuth connections are another common blind spot: a vault does not remove risk if an external app retains broad delegated access. NHIMG’s Top 10 NHI Issues is useful here because it frames secrets exposure, over-privilege, and lifecycle failures as connected problems rather than separate hygiene tasks. The practical test is simple: if access cannot be revoked quickly without business disruption, the organisation does not yet have zero trust for credentials.
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 Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| NIST CSF 2.0 | PR.AC-4 | Addresses access permissions and continuous review of credential access. |
| NIST Zero Trust (SP 800-207) | 3.1 | Zero trust requires explicit, ongoing authorization for every access request. |
| OWASP Non-Human Identity Top 10 | NHI-03 | Directly relevant to long-lived secrets, rotation, and credential lifecycle failures. |
Map secret retrieval to least-privilege access reviews and continuous authorization checks.
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on July 8, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org
