Encrypting stored (at rest) dataensures that even if the storage is compromised (e.g., stolen or accessed by unauthorized parties), the data remains unintelligible without the encryption keys.
NIST SP 800-111 (Guide to Storage Encryption Technologies):
“Data encryption provides confidentiality of information stored on media or storage systems, preventing unauthorized disclosure of sensitive data.”
Encryption is a core requirement forconfidentiality controls, especially for systems handling documents and records.
????WGU Course Alignment:
Domain:System Security Engineering
Topic:Apply data-at-rest encryption for secure information storage
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