id: "SC-28" title: "Protection of Information at Rest" family: "SC" family_name: "System and Communications Protection" sort_id: "sc-28" priority: "P1" implementation_level: "system" enhancements: - sc-28.1 - sc-28.2 - sc-28.3
Statement
Protect the {{ insert: param, sc-28_odp.01 }} of the following information at rest: {{ insert: param, sc-28_odp.02 }}.
Guidance
Information at rest refers to the state of information when it is not in process or in transit and is located on system components. Such components include internal or external hard disk drives, storage area network devices, or databases. However, the focus of protecting information at rest is not on the type of storage device or frequency of access but rather on the state of the information. Information at rest addresses the confidentiality and integrity of information and covers user information and system information. System-related information that requires protection includes configurations or rule sets for firewalls, intrusion detection and prevention systems, filtering routers, and authentication information. Organizations may employ different mechanisms to achieve confidentiality and integrity protections, including the use of cryptographic mechanisms and file share scanning. Integrity protection can be achieved, for example, by implementing write-once-read-many (WORM) technologies. When adequate protection of information at rest cannot otherwise be achieved, organizations may employ other controls, including frequent scanning to identify malicious code at rest and secure offline storage in lieu of online storage.
Assessment Objective
the {{ insert: param, sc-28_odp.01 }} of {{ insert: param, sc-28_odp.02 }} is/are protected.
System and communications protection policy
procedures addressing the protection of information at rest
system design documentation
system configuration settings and associated documentation
cryptographic mechanisms and associated configuration documentation
list of information at rest requiring confidentiality and integrity protections
system security plan
other relevant documents or records
System/network administrators
organizational personnel with information security responsibilities
system developer
Mechanisms supporting and/or implementing confidentiality and integrity protections for information at rest