SC-07(05)—Boundary Protection | Deny by Default — Allow by Exception
Moderate
>Control Description
Deny network communications traffic by default and allow network communications traffic by exception [Selection (one or more): at managed interfaces; for ⚙organization-defined systems].
>Discussion
Denying by default and allowing by exception applies to inbound and outbound network communications traffic. A deny-all, permit-by-exception network communications traffic policy ensures that only those system connections that are essential and approved are allowed. Deny by default, allow by exception also applies to a system that is connected to an external system.
>Cross-Framework Mappings
Ask AI
Configure your API key to use AI features.