Organisations should archive low-use credentials so they remain recoverable while leaving the active vault cleaner and easier to use. Good practice is to preserve the item, keep it searchable only when needed, and maintain review processes so archived credentials still appear in governance checks and can be updated if the underlying account or site changes.
Why This Matters for Security Teams
Lesser used credentials are easy to dismiss because they do not create visible friction day to day, but deletion is not the only risk-reduction path. When a credential is still tied to a live account, integration, or external service, removing it outright can break recovery workflows, automation, or audit continuity. The practical problem is usually governance drift: teams lose track of what is dormant, what is truly retired, and what must remain recoverable for business reasons.
NHIMG research on secret sprawl shows why this matters operationally. The Guide to the Secret Sprawl Challenge highlights how unused secrets accumulate across environments and become harder to classify over time. That aligns with broader guidance from the OWASP Non-Human Identity Top 10, which treats unmanaged NHI secrets as an exposure issue, not just an inventory issue. In practice, many security teams encounter abuse of “old but not deleted” credentials only after a renewal, incident response, or access review has already exposed the gap.
How It Works in Practice
Archiving is a control pattern for credentials that are still needed occasionally but should not remain prominent in the active vault. The objective is to reduce operational clutter without losing governance, traceability, or recovery. A credential can be archived when it is low use, but still associated with a business process, a rollback path, or a service that may need reactivation. That is different from retirement, where the account or secret is fully removed.
In practice, good archiving means the item remains preserved with metadata intact, but access to it is restricted and usage is intentionally rare. The archived record should still surface in reviews, expiry tracking, and ownership checks. Many teams pair this with the principles in NIST SP 800-63 Digital Identity Guidelines and NIST SP 800-53 Rev 5 Security and Privacy Controls by treating the archived credential as a governed identity artifact with accountability, review, and access restriction.
- Keep ownership, system, and last-used metadata attached to the archived item.
- Remove it from default operational views, but preserve searchability for authorised staff.
- Require review before reactivation so the underlying account and site changes are checked.
- Treat archived secrets as still in scope for rotation, expiry, and incident response.
This approach is especially useful for APIs, third-party integrations, and service accounts that are occasionally re-enabled during maintenance or recovery. These controls tend to break down when archived credentials are copied into personal note stores or shared chat threads, because the archive then becomes an ungoverned shadow vault.
Common Variations and Edge Cases
Tighter archiving often increases operational overhead, requiring organisations to balance recoverability against review burden. That tradeoff is real: if every dormant credential requires manual handling, teams may bypass the process and create a parallel storage habit. Best practice is evolving, but current guidance suggests keeping the archive small, intentional, and auditable rather than turning it into a second active vault.
Edge cases usually involve credentials that look dormant but still support hidden dependencies. A certificate used by a batch job may appear unused until month-end, and an API key for a legacy integration may only trigger during exception handling. In those cases, the right question is not whether the credential is “inactive,” but whether it still has a valid operational owner and an approved recovery path. The NHIMG Ultimate Guide to NHIs — Static vs Dynamic Secrets is useful here because static material is often the hardest to classify correctly over time.
Another common variation is the credential that should be rotated before archiving, not after. If the secret has not been used in a long time, archiving without validating the underlying account can preserve old risk rather than reduce it. For teams managing wide secret estates, the Guide to the Secret Sprawl Challenge is a practical reminder that the archive still needs lifecycle control, or it becomes just another place where forgotten access persists.
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 AI RMF and NIST Zero Trust (SP 800-207) set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-03 | Covers secret lifecycle handling, including dormant credential governance. |
| NIST CSF 2.0 | PR.AC-1 | Supports controlled access to archived credentials and governed retrieval. |
| NIST SP 800-63 | Identity lifecycle guidance supports preserving recoverable credential records safely. | |
| NIST AI RMF | Risk management applies when archived secrets remain recoverable and in scope. | |
| NIST Zero Trust (SP 800-207) | ID.M | Zero trust supports minimizing standing access while preserving recovery paths. |
Archive low-use NHI secrets with owner, scope, and reactivation checks, then review them on a fixed cadence.
Related resources from NHI Mgmt Group
- How do organisations reduce the dwell time of exposed credentials at scale?
- How should organisations stop auto-sync from turning desktops into repositories of credentials?
- How should organisations decide when to use passkeys versus digital identity credentials?
- Why do organisations struggle to govern dynamic authorisation without a central access view?
