Should organisations review backup accounts like other privileged identities?

Yes. Backup operators and automation accounts can change the organisation’s recovery posture as much as any administrator, so they deserve the same lifecycle, scope, and monitoring discipline. If those identities are over-permissioned or poorly attributed, an attacker can compromise both production continuity and recovery options at the same time.

Why This Matters for Security Teams

Backup accounts often sit outside the daily spotlight, yet they can carry broad access to data stores, virtualisation layers, infrastructure consoles, and orchestration tooling. That makes them high-value privileged identities, not routine service users. If they are exempted from review because they are “only for recovery,” organisations can end up preserving an attacker’s path to restore, destroy, or exfiltrate data after an incident. Current guidance on non-human identities points to the same basic risk: privileged automation and recovery identities need explicit ownership, scoped access, and lifecycle control, as reflected in the OWASP Non-Human Identity Top 10.

The practical mistake is treating backup capability as inherently safe because it is used rarely. Rarity is not a control. A backup account that can access immutable storage, snapshot management, or key material may be more dangerous than a frequently used administrator account, especially if it is shared, vaulted without review, or excluded from alerting. In practice, many security teams discover backup-account overreach only after a recovery test, ransomware event, or audit has already exposed the gap, rather than through intentional privileged access review.

How It Works in Practice

Reviewing backup accounts should follow the same core questions used for privileged identities: who owns it, what systems can it reach, when is it used, how is it authenticated, and what evidence exists that its access is still required. The account inventory should distinguish between human-operated backup roles, scheduled backup service accounts, and machine identities used by recovery tooling. Each type has different control expectations, but none should be invisible.

For most environments, the review process should include:

• Named business and technical ownership for every backup identity.
• Explicit scope limits for backup software, repositories, key stores, and restore functions.
• Separate credentials for backup, restore, and infrastructure administration where possible.
• Strong authentication, vaulting, and rotation for any long-lived secret.
• Logging that ties backup actions to a change ticket, job ID, or operator identity.
• Periodic validation that the account is still needed and cannot be repurposed for broader admin activity.

Controls from the NIST SP 800-53 Rev 5 Security and Privacy Controls are useful here because they map well to access enforcement, auditability, and account management expectations. The key point is not to over-engineer the backup process into unusability. It is to make privilege visible enough that restore capability does not become a hidden production backdoor. These controls tend to break down in legacy backup estates where shared credentials, hard-coded secrets, and appliance-level admin access were built for speed rather than attribution.

Common Variations and Edge Cases

Tighter backup-account review often increases operational overhead, requiring organisations to balance restore speed against access assurance. That tradeoff becomes sharper in disaster recovery, air-gapped environments, and legacy platforms where tooling was never designed for granular identity separation. Best practice is evolving, and there is no universal standard for every backup architecture yet, but the direction is clear: recovery identities should be governed as privileged access, not treated as an exception to it.

Some environments need special handling. For managed backup services, the organisation may not fully control the underlying account model, so the review should focus on contractual assurances, logging access, and segregation of duties. For immutable backup platforms, the main risk may be destructive restore capability rather than file-level read access. For cross-domain or cloud backup products, privilege can span tenants, subscriptions, or storage tiers, so a narrow entitlement review is not enough.

Backup accounts also deserve attention when they are used for automation during incident response. In those cases, the question is not whether the identity is “human” or “non-human,” but whether it can alter recovery outcomes without sufficient oversight. That is why backup identity review should be part of PAM, resilience testing, and privilege recertification together, not handled as a separate administrative exercise.

Related resources from NHI Mgmt Group

• Should organisations treat AI service sessions like privileged non-human identities?
• Why do non-human identities create more audit risk than human accounts?
• How should security teams govern non-human identities alongside human accounts?
• How can organisations reduce the blast radius of compromised agent identities?