AC-4(32)—Process Requirements For Information Transfer
>Control Description
When transferring information between different security domains, the process that transfers information between filter pipelines:
a. Does not filter message content;
b. Validates filtering metadata;
c. Ensures the content associated with the filtering metadata has successfully completed filtering; and
d. Transfers the content to the destination filter pipeline.
>Supplemental Guidance
The processes transferring information between filter pipelines have minimum complexity and functionality to provide assurance that the processes operate correctly.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of AC-4(32) (Process Requirements For Information Transfer)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring AC-4(32)?
- •How frequently is the AC-4(32) policy reviewed and updated, and what triggers policy changes?
- •What training or awareness programs ensure personnel understand their responsibilities related to AC-4(32)?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce AC-4(32) requirements.
- •What automated tools, systems, or technologies are deployed to implement AC-4(32)?
- •How is AC-4(32) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce AC-4(32) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of AC-4(32)?
- •What audit logs, records, reports, or monitoring data validate AC-4(32) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of AC-4(32) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate AC-4(32) compliance?
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