Mobile systems must encrypt all disks to protect the confidentiality and integrity of all information at rest.

From Windows 10 Security Technical Implementation Guide

Associated with: CCI-001199 CCI-002475 CCI-002476

SV-77827r1_rule Mobile systems must encrypt all disks to protect the confidentiality and integrity of all information at rest.

Vulnerability discussion

If data at rest is unencrypted, it is vulnerable to disclosure. Even if the operating system enforces permissions on data access, an adversary can remove non-volatile memory and read it directly, thereby circumventing operating system controls. Encrypting the data ensures that confidentiality is protected even when the operating system is not running.

Check content

Verify mobile systems employ DoD-approved full disk encryption. If full disk encryption is not implemented, this is a finding. If BitLocker is used, verify it is turned on for the operating system drive and any fixed data drives. Open "BitLocker Drive Encryption" from the Control Panel. If the operating system drive or any fixed data drives have "Turn on BitLocker", this is a finding.

Fix text

Install an approved DoD encryption package and enable full disk encryption on mobile systems. BitLocker can be enabled in "BitLocker Drive Encryption" in the Control Panel.

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