SC-4(2): Multilevel or Periods Processing

Control Family:

System and Communications Protection

Parent Control:

SC-4: Information in Shared System Resources

Threats Addressed:

Information Disclosure

Baselines:

(Not part of any baseline)

Previous Version:

NIST Special Publication 800-53 Revision 4:
SC-4(2): Periods Processing

Control Statement

Prevent unauthorized information transfer via shared resources in accordance with [Assignment: organization-defined procedures] when system processing explicitly switches between different information classification levels or security categories.

Supplemental Guidance

Changes in processing levels can occur during multilevel or periods processing with information at different classification levels or security categories. It can also occur during serial reuse of hardware components at different classification levels. Organization-defined procedures can include approved sanitization processes for electronically stored information.