How should security teams govern access used by backup and recovery systems?

Why This Matters for Security Teams

Backup and recovery platforms sit in a dangerous middle ground: they are designed to preserve availability, but they often hold the broadest credentials in the environment. That makes them prime targets for ransomware operators, insiders, and anyone looking to turn recovery into a second path to production. Governance should treat these systems as privileged NHI workloads, not as “just infrastructure.” The control objective is simple: if a restore path can reach everything, it must be tightly scoped, named, monitored, and revocable.

Industry guidance is increasingly aligned on this point. The NIST Cybersecurity Framework 2.0 emphasizes access governance and resilience as linked outcomes, while the OWASP Non-Human Identity Top 10 highlights how over-privileged machine identities expand blast radius. NHIMG research reinforces that risk: in Ultimate Guide to NHIs, 97% of NHIs carry excessive privileges, and only 20% of organisations have formal offboarding and revocation processes for API keys.

In practice, many security teams discover recovery-path privilege sprawl only after an incident forces the restore process to become the attack path.

How It Works in Practice

Effective governance starts by classifying backup operators, automation accounts, vault service principals, and failover credentials as privileged NHIs with explicit owners and defined purpose. That ownership should be recorded in the same inventory used for other machine identities, with scope tied to specific backup sets, restore targets, and maintenance windows. The point is not merely to authenticate the account, but to constrain what it can do at runtime.

Current best practice is moving toward short-lived, just-in-time access for restore operations. Where the platform supports it, issue ephemeral tokens only for the duration of a backup job or restore session, then revoke them automatically. Long-lived static secrets make recovery systems attractive persistence points, especially when they are shared across clusters or copied into scripts. Operationally, teams should prefer workload identity over embedded secrets, and map access through policy checks at request time rather than assuming a permanent role is acceptable.

That means:

• Assign named owners to every backup and recovery identity.
• Separate read, write, delete, and restore permissions.
• Rotate or re-issue credentials as part of scheduled restore testing.
• Log every recovery action with change, incident, or DR context.
• Validate that emergency access still expires after the event closes.

The lifecycle view matters here. NHIMG’s Lifecycle Processes for Managing NHIs frames recovery identities as assets that must be provisioned, reviewed, and retired deliberately, not left attached to software forever. This aligns with NIST control expectations in NIST SP 800-53 Rev 5 Security and Privacy Controls, especially where least privilege, auditability, and revocation are required. These controls tend to break down when backup software is deployed across multiple tenants or legacy appliances because credential reuse becomes the easiest way to keep restores working.

Common Variations and Edge Cases

Tighter recovery governance often increases operational overhead, so organisations have to balance restore speed against the risk of hidden standing privilege. That tradeoff is especially visible during disaster recovery, where teams may be tempted to keep “break glass” access permanently enabled to avoid delays. Current guidance suggests that emergency access can exist, but it should still be time-bound, monitored, and routinely tested under realistic conditions.

Some environments are harder than others. Air-gapped backup systems, tape archives, and vendor-managed appliances may not support modern token flow or policy-as-code enforcement. In those cases, best practice is evolving rather than settled: use compensating controls such as sealed credential escrow, dual control for retrieval, and immediate post-use revocation. For cloud-native recovery services, align the process with workload identity and short TTL secrets wherever possible, because the restore plane is often just another workload plane.

This is where guidance must stay practical. A recovery identity that is exempt from normal lifecycle rules should be treated as an exception, not a design pattern. NHIMG’s Regulatory and Audit Perspectives notes that weak documentation around machine identities is a recurring audit finding, and the same logic applies to backup access. Where organisations need a reference point for control design, the NIST framework and the OWASP NHI guidance both support the same operational direction: keep recovery privileged, scoped, observable, and short-lived.

Related resources from NHI Mgmt Group

• How should security teams govern API keys used for generative AI access?
• How should security teams govern non-human identities that have persistent access?
• How should security teams govern identities used in backup and recovery workflows?
• How should security teams govern conversational AI used for resilience decisions?