System-Protection

SC.L2-3.13.1
SC.L2-3.13.1: Boundary Protection
Monitor, control, and protect communications at the external boundaries and key internal boundaries of organizational systems.
hard
SC.L2-3.13.2
SC.L2-3.13.2: Security Engineering Principles
Build security into your systems from the start, not as an afterthought
moderate
SC.L2-3.13.8
SC.L2-3.13.8: CUI in Transit
Implement cryptographic mechanisms to prevent unauthorized disclosure of CUI during transmission.
moderate