Deny network communications traffic by default and allow network communications traffic by exception [Selection (one or more): at managed interfaces; for [Assignment: organization-defined systems]].
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| Control Identifier | SC-7(5) |
| Latest Sync Date | 19/12/24 09:18:14 |
| 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. |
| Related Controls | None. |