SC-8(5)—Protected Distribution System
>Control Description
Implement ⚙organization-defined protected distribution system to ☑prevent unauthorized disclosure of information; detect changes to information during transmission.
>Supplemental Guidance
The purpose of a protected distribution system is to deter, detect, and/or make difficult physical access to the communication lines that carry national security information.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies govern the implementation of protected distribution system?
- •How are system and communications protection requirements defined and maintained?
- •Who is responsible for configuring and maintaining the security controls specified in SC-8(5)?
Technical Implementation:
- •How is protected distribution system technically implemented in your environment?
- •What systems, tools, or configurations enforce this protection requirement?
- •How do you ensure that protected distribution system remains effective as the system evolves?
Evidence & Documentation:
- •What documentation demonstrates the implementation of SC-8(5)?
- •Can you provide configuration evidence or system diagrams showing this protection control?
- •What logs or monitoring data verify that this control is functioning correctly?
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