Storage account encryption scopes should use customer-managed keys to encrypt data at rest
Use customer-managed keys to manage the encryption at rest of your storage account encryption scopes. Customer-managed keys enable the data to be encrypted with an Azure key-vault key created and owned by you.
Customer-managed keys enable the data to be encrypted with an Azure key-vault key created and owned by you. You have full control and responsibility for the key lifecycle, including rotation and management.
What this control checks
Checks whether storage account encryption scopes use customer-managed keys for encryption at rest
Common pitfalls
Effect defaults to Audit
The effect parameter allows Audit, Deny and Disabled, with a defaultValue of Audit.
Audit evidence
Evidence that deployed resources meet this control: Azure Policy compliance results for the built-in policy definition "Storage account encryption scopes should use customer-managed keys to encrypt data at rest" (b5ec538c-daa0-4006-8596-35468b9148e8); PowerPipe control azure_compliance.control.storage_account_encryption_scopes_encrypted_at_rest_with_cmk.
Framework-specific interpretation
NIST SP 800-53 Rev 5: Mapped to SC-12 (Cryptographic Key Establishment and Management).
FedRAMP Moderate Baseline Rev 4: Mapped to SC-12 (Cryptographic Key Establishment And Management).
Framework mappings
The clauses this control is mapped to in each framework.
- Cryptographic Key Establishment And Management (SC-12)
FedRAMP Moderate Baseline Rev 4
- SC-12 Cryptographic Key Establishment And Management
- 3.13.10 Establish and manage cryptographic keys for cryptography employed in organizational systems
- 3.1.h Public Key Infrastructure (PKI)
- SC.L2-3.13.10 Establish and manage cryptographic keys for cryptography employed in organizational systems
- SC-12 Cryptographic Key Establishment And Management
Related controls
Tool mappings
Use these identifiers to cross-reference this control across tools, reports, and evidence.
- Compliance.tf Control:
storage_account_encryption_scopes_encrypted_at_rest_with_cmk - Powerpipe Control:
azure_compliance.control.storage_account_encryption_scopes_encrypted_at_rest_with_cmk - Azure Policy Definition:
b5ec538c-daa0-4006-8596-35468b9148e8
Last reviewed: 2026-10-15