What is the primary purpose of volume storage encryption in a cloud environment?

Volume storage encryption protects data at rest stored on virtual disks in cloud environments.

“Encryption of storage volumes protects data at rest by ensuring that unauthorized users who gain access to the storage infrastructure cannot read the data without encryption keys.”

— CSA Security Guidance v4.0 – Domain 11: Data Security and Encryption

Encryption helps maintain:

Confidentiality and integrity of stored data

Compliance with data protection regulations (e.g., GDPR, HIPAA)