SC-40(2)—Reduce Detection Potential
>Control Description
Implement cryptographic mechanisms to reduce the detection potential of wireless links to ⚙organization-defined level of reduction.
>Supplemental Guidance
The implementation of cryptographic mechanisms to reduce detection potential is used for covert communications and to protect wireless transmitters from geo-location. It also ensures that the spread spectrum waveforms used to achieve a low probability of detection are not predictable by unauthorized individuals. Mission requirements, projected threats, concept of operations, and applicable laws, executive orders, directives, regulations, policies, and standards determine the levels to which wireless links are undetectable.
>Related Controls
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies govern the implementation of reduce detection potential?
- •How are system and communications protection requirements defined and maintained?
- •Who is responsible for configuring and maintaining the security controls specified in SC-40(2)?
- •What is your cryptographic key management policy?
Technical Implementation:
- •How is reduce detection potential technically implemented in your environment?
- •What systems, tools, or configurations enforce this protection requirement?
- •How do you ensure that reduce detection potential remains effective as the system evolves?
- •What encryption mechanisms and algorithms are used to protect data?
Evidence & Documentation:
- •What documentation demonstrates the implementation of SC-40(2)?
- •Can you provide configuration evidence or system diagrams showing this protection control?
- •What logs or monitoring data verify that this control is functioning correctly?
- •Can you demonstrate that FIPS 140-2 validated cryptography is used?
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