The account should remain in an exception state under PAM or IGA ownership until the business and technical evidence converge. If no accountable owner can be named, the programme should treat the account as unmanaged risk rather than assuming discovery coverage equals control coverage.
Why This Matters for Security Teams
When a non-human account cannot be confidently attributed, the problem is not just missing documentation. It is a control failure that blocks ownership, review, and revocation. Unattributed accounts often sit outside normal PAM or IGA workflows, which means no one can validate why they exist, what they can reach, or when they should be removed. That gap becomes especially dangerous in environments with broad secret sprawl, where NHI Mgmt Group reports that 68% of organisations do not know how to fully address NHI risks in practice. NHI Mgmt Group research
Security teams often assume discovery tools and inventory reports are enough to establish accountability. They are not. A discovered account with no named owner remains an unresolved exception, and unresolved exceptions tend to accumulate in CI/CD systems, integrations, and service-to-service workflows. That is why guidance aligned to NIST SP 800-53 Rev. 5 Security and Privacy Controls still matters here: control ownership, reviewability, and revocation are operational requirements, not paperwork. In practice, many security teams encounter this only after an outage, a breach investigation, or a failed audit exposes that no accountable owner ever existed.
How It Works in Practice
The safest operating model is to treat unattributed non-human accounts as exception-managed assets until evidence converges. That means the account remains under PAM or IGA ownership, even if business ownership is unclear, and it is constrained by default rather than granted full trust. The evidence chain should combine technical signals and business context: where the credential was issued, which workload or integration uses it, what systems it can reach, and whether the token, key, or certificate maps to a known service, pipeline, or application.
Practical handling usually follows a few steps:
- Freeze privilege growth and block new entitlements until an owner is named.
- Bind the account to the smallest safe control domain, such as a service queue, application wrapper, or PAM exception record.
- Collect telemetry from IAM, secrets managers, CI/CD, and runtime logs to infer intended use.
- Set a time bound for attribution work, with automatic escalation if the owner cannot be confirmed.
- Revoke or rotate the secret if the account cannot be justified within the approved window.
This approach matches what NHI Mgmt Group has documented in cases like the Schneider Electric credentials breach, where credential exposure became a governance issue as much as a technical one. It also aligns with the control logic in NIST SP 800-53 Rev. 5: if attribution cannot be proven, the account should be handled as an accountable risk object, not as an assumed exception. These controls tend to break down when accounts are embedded in unmanaged automation or third-party toolchains because evidence is fragmented across systems that do not share a common owner record.
Common Variations and Edge Cases
Tighter exception handling often increases operational overhead, requiring organisations to balance faster delivery against stronger attribution discipline. That tradeoff is unavoidable, especially in CI/CD, shared platform services, and vendor-managed integrations where the original creator may no longer be available. Current guidance suggests that attribution should be based on converging evidence, not on who last touched the account, because last-touch records are often misleading in delegated administration models.
There is no universal standard for this yet, but best practice is evolving toward short-lived exceptions, explicit expiry dates, and mandatory revalidation after any major system change. Accounts used by vendors, build systems, or autonomous workflows should be reviewed with extra care because the operational owner and the technical owner are often different people or teams. For that reason, incidents involving hard-coded or overexposed secrets, such as the JetBrains GitHub plugin token exposure and Hard-Coded Secrets in VSCode Extensions, are especially important edge cases: the account may be technically active long before anyone can prove who should own it.
When attribution remains uncertain after the approved review period, the account should be quarantined, rotated, or removed rather than left in a permanent exception state.
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-01 | Unattributed accounts indicate weak NHI inventory and ownership control. |
| NIST CSF 2.0 | PR.AC-1 | Identity and credential management requires accountable assignment before access is trusted. |
| NIST SP 800-63 | Identity proofing principles inform how attribution confidence is established. | |
| NIST Zero Trust (SP 800-207) | 5.2 | Zero Trust requires explicit verification and continuous evaluation of access claims. |
| NIST AI RMF | GOVERN | Governance is needed when autonomous systems create or use accounts without clear attribution. |
Map every non-human account to a named owner and quarantine anything that cannot be attributed.
