The operating system must implement cryptographic mechanisms to prevent unauthorized modification of all information at rest on organization-defined information system components.

Overview

Finding ID	Version	Rule ID	IA Controls	Severity
V-59693	AOSX-10-000785	SV-74123r1_rule		Medium

Description
FileVault Disk Encryption must be enabled. This ensures that any data stored on the hard drive will be protected by cryptographic means when the system is powered off, mitigating the risk of unauthorized modification of that data. Selection of a cryptographic mechanism is based on the need to protect the integrity of organizational information. The strength of the mechanism is commensurate with the security category and/or classification of the information. Organizations have the flexibility to either encrypt all information on storage devices (i.e., full disk encryption) or encrypt specific data structures (e.g., files, records, or fields).

Description

FileVault Disk Encryption must be enabled. This ensures that any data stored on the hard drive will be protected by cryptographic means when the system is powered off, mitigating the risk of unauthorized modification of that data. Selection of a cryptographic mechanism is based on the need to protect the integrity of organizational information. The strength of the mechanism is commensurate with the security category and/or classification of the information. Organizations have the flexibility to either encrypt all information on storage devices (i.e., full disk encryption) or encrypt specific data structures (e.g., files, records, or fields).

STIG	Date
Apple OS X 10.10 (Yosemite) Workstation Security Technical Implementation Guide	2017-04-06

Details

Check Text ( C-60463r1_chk )
To check if FileVault 2 is enabled, run the following command: sudo fdesetup status If FileVault is 'Off', and the device is a laptop, this is a finding.

Fix Text (F-65103r3_fix)
Open System Preferences >> Security and Privacy, and navigate to the FileVault tab. Use this panel to configure full-disk encryption. Alternately, from the command line, run the following command to enable FileVault: sudo fdesetup enable After FileVault is initially set up, additional users can be added.