Topic starter
06/11/2026 6:39 pm
TL;DR: Encrypting identity data does not equal controlling it, because the real governance boundary is who can authorize, revoke, log and relocate key use across cloud and SaaS environments, according to Daon analysis. For biometric and identity records, customer-controlled keys turn encryption into an auditable governance model rather than a provider-dependent safeguard.
Editorial analysis by NHI Mgmt Group, based on content published by Daon: “Customer-Controlled Encryption: Why Key Ownership Matters for Identity Data”.
Key questions
Q: How should teams decide whether identity data needs customer-controlled encryption?
A: Use customer-controlled encryption when the identity data is high value, long lived, or exposed to administrators, support staff, cloud operators, or third parties.
Q: Why is biometric data treated differently from other encrypted records?
A: Biometric data is treated differently because a biometric template is tied to a person and cannot be replaced like a password or token if exposed.
Q: How does customer-managed key control support zero trust for cloud identity systems?
A: Customer-managed key control supports zero trust by making decryption authority explicit, so access to identity records depends on a defined key policy rather than implicit platform trust.
Practitioner guidance
- Define the decryption authority boundary Document exactly who can authorise key use, who can revoke it, and which identity datasets sit inside that boundary.
- Separate biometric data from ordinary records Apply a stricter encryption and key-control model to biometric templates, proofing records and recovery artefacts than to general business data.
- Test revocation and recovery paths Verify that key suspension, rotation, backup restoration and outage recovery all work under the chosen key-residency model.
Bottom line: Encryption does not automatically equal control when the provider still governs key use and revocation.
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06/11/2026 6:41 pm
Key control, not encryption itself, is the governance primitive for identity data. Encryption only matters operationally when the organisation can define who authorises use of the key, who can revoke that authority and who can prove the action afterward. When those decisions sit with the provider, the enterprise has protection without independent control. Practitioners should treat key ownership as a first-class identity governance decision.
A question worth separating out:
Q: What should security teams test before relying on external key management?
A: Security teams should test key ownership, rotation, revocation, failure recovery, and whether the service still enforces access checks when external key management is unavailable. They should also verify auditability through customer-visible logs, including who requested a key operation, when it occurred, and which identity or dataset was decrypted. Without that, external key control can create blind spots.
👉 Read our full editorial: Customer-controlled encryption reframes identity data governance