Information Flow Enforcement | Physical / Logical Separation Of Information Flows, v1.0

Defines conformance and assessment criteria for verifying that an information system separates information flows logically or physically using organization-defined mechanisms and/or techniques to accomplish organization-defined required separations by types of information.
If an assessment step references organization-defined elements (E.g. <organization-defined personnel or roles>, <organization-defined frequency>, etc.), corresponding citations/excerpts must be provided to confirm that the organization has established and documented these values and that they apply as referenced in the conformance criteria.

Similarly, if a "Selection" among multiple options (e.g. [Selection (one or more): as needed; ]) is specified, evidence must be provided to establish that the option(s) implemented by the organization have been defined and documented.

The assessment step shall not be marked as satisfied without this evidence.

Assessment Step

1
Information Flow Enforcement | Physical / Logical Separation Of Information Flows (InformationFlowEnforcementPhysicalLogicalSeparationOfInformationFlows)
Does the information system separate information flows logically or physically using [Assignment: organization-defined mechanisms and/or techniques] to accomplish [Assignment: organization-defined required separations by types of information]?
Artifact
A1
Provide evidence (e.g. organizational policies, procedures, compliance/assessment reports, etc.) that support the assessor's response to this assessment step.
Parameter
Separation Typerequired
ENUM : Select the type of information flow separation used by the system.
  • logical
  • physical
If conformance criteria reference organization-defined elements (e.g. <organization-defined personnel or roles>, <organization-defined frequency>, etc.), these values must be defined and documented by the organization.

Similarly, if the criteria specify a "Selection" among multiple options (e.g. [Selection (one or more): as needed; ]), the option(s) implemented by the organization must also be defined and documented.

Conformance Criteria (1)

C1
The information system separates information flows logically or physically using [Assignment: organization-defined mechanisms and/or techniques] to accomplish [Assignment: organization-defined required separations by types of information].
Citation
SP800-53R4
Appendix F, AC-4 (21)