AC-4(17)—Information Flow Enforcement
Technical
>Control Description
INFORMATION FLOW ENFORCEMENT | DOMAIN AUTHENTICATION The information system uniquely identifies and authenticates source and destination points by [Selection (one or more): organization, system, application, individual] for information transfer.
>Supplemental Guidance
Attribution is a critical component of a security concept of operations. The ability to identify source and destination points for information flowing in information systems, allows the forensic reconstruction of events when required, and encourages policy compliance by attributing policy violations to specific organizations/individuals. Successful domain authentication requires that information system labels distinguish among systems, organizations, and individuals involved in preparing, sending, receiving, or disseminating information.
Related controls: IA-2, IA-3, IA-4, IA-5.
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