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SC-39(2)—Separate Execution Domain Per Thread

>Control Description

Maintain a separate execution domain for each thread in ⚙organization-defined multi-threaded processing.

>Cross-Framework Mappings

SCF

SEA-04.3
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>Supplemental Guidance

None.

>Assessment Interview Topics

Questions assessors commonly ask

Process & Governance:

  • •What policies govern the implementation of separate execution domain per thread?
  • •How are system and communications protection requirements defined and maintained?
  • •Who is responsible for configuring and maintaining the security controls specified in SC-39(2)?

Technical Implementation:

  • •How is separate execution domain per thread technically implemented in your environment?
  • •What systems, tools, or configurations enforce this protection requirement?
  • •How do you ensure that separate execution domain per thread remains effective as the system evolves?
  • •How is separation of duties or partitioning technically enforced?

Evidence & Documentation:

  • •What documentation demonstrates the implementation of SC-39(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?

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