Encryption at rest and key custody talking points

Published Mar 19, 2024 • Updated May 1, 2026

Overview

Encrypting backups protects data if drives stolen—but key loss equals data loss. Custody clarity is contractual.

Explain

Who holds master keys, rotation cadence, escrow for bankruptcy scenarios (legal review).

Cloud

Customer-managed keys (CMK) add ops burden—price support accordingly.

Audit phrase

“We support encryption at rest using vendor algorithm X; you retain passphrase Y in enterprise vault Z.”

DR test

Include restore with escrowed key drill annually.

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