What breaks is identity governance. Password vaulting can protect the secret while leaving the account overprivileged, long-lived, or unknown to the IAM team. That creates a gap between credential security and actual access control, which is where lateral movement and misuse usually start.
Why This Matters for Security Teams
When PAM is treated as password vaulting only, the program narrows to secret storage while the real risk remains in the account, entitlement, and session layer. That means an organisation can rotate a password and still leave a standing privileged account, an unmanaged service account, or a shared administrator identity in place. NIST’s NIST Cybersecurity Framework 2.0 makes the broader point clear: identity, access, and governance must work together, not in isolation.
NHIMG research shows why this gap is operational, not theoretical. In Guide to the Secret Sprawl Challenge, secret sprawl is framed as a lifecycle failure, not simply a storage problem, and the 2025 State of NHIs and Secrets in Cybersecurity report found that 91% of former employee tokens remain active after offboarding. That is what breaks when vaulting is mistaken for governance: the secret may be protected, but the privilege is still alive. In practice, many security teams encounter the failure only after an overprivileged account is reused for lateral movement, rather than through intentional access review.
How It Works in Practice
Proper PAM should control more than the password. It should define who or what can assume privilege, under what conditions, for how long, and with what audit trail. That means vaulting is only one control in a broader access model that includes entitlement review, session brokering, just-in-time elevation, and rapid revocation. The NIST CSF and current guidance from identity teams both point toward the same operational pattern: reduce standing access, time-box elevation, and continuously verify that privileged pathways still match business need.
In practice, security teams should separate three questions:
- Is the secret protected in a vault?
- Is the underlying account still privileged?
- Is that privilege actually required for this user, service, or workflow?
This is where the distinction matters most for NHI and service-account governance. An API key in a vault can still be overused, shared across applications, or left active after ownership changes. NHIMG’s Ultimate Guide to NHIs — Static vs Dynamic Secrets is useful here because it distinguishes static secrets from dynamic ones, which is the real decision point for reducing exposure window. Vaulting a static credential without reducing standing privilege often just creates a more polished place to store risk. Controls tend to break down when teams vault credentials for shared admin accounts, legacy integrations, or machine identities that were never mapped into the IAM ownership model because there is no single accountable owner.
Common Variations and Edge Cases
Tighter PAM often increases operational overhead, so organisations have to balance control depth against application friction and administrative maturity. That tradeoff becomes visible in legacy environments, where shared accounts, hard-coded credentials, and vendor-maintained access paths are hard to replace quickly. Current guidance suggests treating these as migration targets, not as a reason to stop at vaulting.
There is no universal standard for this yet, but a practical approach is to prioritise the accounts that can cause the most blast radius if abused: domain admins, cloud admin roles, service accounts with broad API reach, and offboarded identities that still hold tokens. The BeyondTrust API key breach illustrates how exposed or misused secrets can become an access path even when teams believe the credential layer is controlled. Vaulting also fails as a complete answer in distributed environments where multiple teams own different parts of the stack, because no one is accountable for entitlements, session monitoring, or timely removal of dormant privilege. That is why PAM maturity should be measured by privilege lifecycle control, not by vault adoption alone.
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 AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Covers lifecycle and rotation gaps that vault-only PAM leaves behind. |
| NIST CSF 2.0 | PR.AC-4 | Access control must cover entitlements, not just stored credentials. |
| NIST AI RMF | Governance function applies to ownership, accountability, and access oversight. |
Map every privileged identity to an owner, set rotation SLAs, and remove standing access when use stops.