The Mainframe Product must implement cryptographic mechanisms to prevent unauthorized disclosure of all information not cleared for public release at rest on system components outside of organization facilities.

Severity	Group ID	Group Title	Version	Rule ID	Date	STIG Version
high	V-205585	SRG-APP-000429	SRG-APP-000429-MFP-000304	SV-205585r1028318_rule	2024-12-05	3

Description
Applications handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection of a cryptographic mechanism is based on the need to protect the confidentiality of organizational information. The strength of 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

Applications handling data requiring "data at rest" protections must employ cryptographic mechanisms to prevent unauthorized disclosure and modification of the information at rest. Selection of a cryptographic mechanism is based on the need to protect the confidentiality of organizational information. The strength of 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).

ℹ️ Check
Examine installation and configuration settings. Review requirements for relevant organization or site-defined information. If the Mainframe Product does not have cryptographic mechanisms implemented to prevent unauthorized disclosure of all information not cleared for public release at rest on system components outside of organization facilities, this is a finding.

✔️ Fix
Configure the Mainframe Product to implement cryptographic mechanisms to prevent unauthorized disclosure of all information not cleared for public release at rest on system components outside of organization facilities.