Accountability should sit with the programme that owns identity governance, not with each isolated platform team. The organisation needs one policy model for access, rotation, ownership, and audit evidence, even when secrets remain technically distributed. Without that, no one can prove that lifecycle control is complete across the estate.
Why This Matters for Security Teams
secrets governance across multiple cloud vaults is not just a tooling question. It is an accountability question about who owns access policy, rotation, revocation, and audit evidence when credentials are distributed across platforms. In mature environments, the risk is rarely the vault itself; it is the absence of one authoritative control plane for identity governance, which creates drift between cloud teams, application owners, and security operations. That is exactly the kind of fragmentation highlighted in the Guide to the Secret Sprawl Challenge.
The concern is not theoretical. NHIMG research reports that 54% of organisations are dissatisfied with their current secrets management solution because not all secrets are secured, and 43% cite lack of central management. That lines up with what practitioners see when vault sprawl outpaces governance. Guidance from the NIST Cybersecurity Framework 2.0 and OWASP Non-Human Identity Top 10 both points toward clear ownership, policy enforcement, and continuous monitoring rather than siloed administration. In practice, many security teams discover the accountability gap only after a leaked secret or failed audit has already exposed it.
How It Works in Practice
The accountable function should define the control model, while platform teams implement the mechanics in their own vaults. That means one set of rules for secret classification, ownership, approval, rotation intervals, break-glass handling, and evidence collection, even if the organisation uses several cloud-native vaults. The operating model should treat secrets as governed assets, not local configuration items. NIST control families in NIST SP 800-53 Rev 5 Security and Privacy Controls are useful here because they separate policy intent from implementation detail.
Practically, the governance owner should require:
- one authoritative inventory of secrets across all vaults, with ownership attached to each secret
- central policy for creation, rotation, expiration, and revocation, enforced through each vault’s native controls or API
- standardised audit evidence so compliance can verify lifecycle completion across cloud boundaries
- exception handling for temporary overrides, with expiry dates and named approvers
- cross-vault monitoring for duplicate secrets, stale credentials, and unmanaged deployments
This matters because vaults do not fail in isolation. Secrets often leak through CI/CD pipelines, ticketing systems, and misconfigured storage, as shown in NHIMG case studies like the CI/CD pipeline exploitation case study and the Reviewdog GitHub Action supply chain attack. The governance programme must therefore own the policy layer and verify that each vault instance conforms to it. These controls tend to break down in multi-cloud estates where teams can provision vaults independently because the organisation loses a single source of truth for secret lifecycle evidence.
Common Variations and Edge Cases
Tighter central governance often increases operational overhead, requiring organisations to balance speed for platform teams against consistency for security and audit. That tradeoff becomes more visible in federated cloud estates, where business units insist on local autonomy. Current guidance suggests that local administration can exist, but the policy owner must remain centralised. There is no universal standard for this yet, but the control objective is consistent: no vault should be outside the governance model.
One common edge case is when different clouds support different rotation and access primitives. In those environments, the accountable team should set minimum requirements and accept compensating controls only when they are documented and time-bound. Another edge case is acquisition or regional separation, where legacy vaults may not integrate cleanly. In those scenarios, the priority is to establish a common reporting layer and a migration path, not to pretend the estate is already unified. NHIMG’s 230M AWS environment compromise and Ultimate Guide to NHIs – Static vs Dynamic Secrets both reinforce the same lesson: distributed storage is acceptable, but distributed accountability is not.
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, NIST SP 800-63, NIST Zero Trust (SP 800-207) 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 secrets lifecycle control and ownership across distributed systems. |
| NIST CSF 2.0 | ID.AM | Asset management is needed to inventory secrets across multiple vaults. |
| NIST SP 800-63 | Identity assurance concepts support authoritative ownership of credentialed access. | |
| NIST Zero Trust (SP 800-207) | PDP/PEP | Central policy enforcement is essential when access is distributed across vaults. |
| NIST AI RMF | GOVERN | Governance requires clear accountability for automated secret use and access decisions. |
Use identity proofing and lifecycle rules to keep secret ownership attributable and current.