SC-38—Operations Security
>Control Description
>DoD Impact Level Requirements
No specific parameter values or requirements for this impact level.
>Discussion
Operations security (OPSEC) is a systematic process by which potential adversaries can be denied information about the capabilities and intentions of organizations by identifying, controlling, and protecting generally unclassified information that specifically relates to the planning and execution of sensitive organizational activities. The OPSEC process involves five steps: identification of critical information, analysis of threats, analysis of vulnerabilities, assessment of risks, and the application of appropriate countermeasures. OPSEC controls are applied to organizational systems and the environments in which those systems operate.
OPSEC controls protect the confidentiality of information, including limiting the sharing of information with suppliers, potential suppliers, and other non-organizational elements and individuals. Information critical to organizational mission and business functions includes user identities, element uses, suppliers, supply chain processes, functional requirements, security requirements, system design specifications, testing and evaluation protocols, and security control implementation details.
>Related Controls
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies govern the implementation of operations security?
- •How are system and communications protection requirements defined and maintained?
- •Who is responsible for configuring and maintaining the security controls specified in SC-38?
Technical Implementation:
- •How is operations security technically implemented in your environment?
- •What systems, tools, or configurations enforce this protection requirement?
- •How do you ensure that operations security remains effective as the system evolves?
Evidence & Documentation:
- •What documentation demonstrates the implementation of SC-38?
- •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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