CA-3(1): Unclassified National Security System Connections

CSF v1.1 References:


(Not part of any baseline)

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Control is withdrawn in the next version of this control set and incorporated into: SC-7(25): Unclassified National Security System Connections.

Control Statement

The organization prohibits the direct connection of an [Assignment: organization-defined unclassified, national security system] to an external network without the use of [Assignment: organization-defined boundary protection device].

Supplemental Guidance

Organizations typically do not have control over external networks (e.g., the Internet). Approved boundary protection devices (e.g., routers, firewalls) mediate communications (i.e., information flows) between unclassified national security systems and external networks. This control enhancement is required for organizations processing, storing, or transmitting Controlled Unclassified Information (CUI).