CA-3(7)—Transitive Information Exchanges
>Control Description
Identify transitive (downstream) information exchanges with other systems through the systems identified in CA-3a; and
Take measures to ensure that transitive (downstream) information exchanges cease when the controls on identified transitive (downstream) systems cannot be verified or validated.
>Supplemental Guidance
Transitive or downstream information exchanges are information exchanges between the system or systems with which the organizational system exchanges information and other systems. For mission-essential systems, services, and applications, including high value assets, it is necessary to identify such information exchanges. The transparency of the controls or protection measures in place in such downstream systems connected directly or indirectly to organizational systems is essential to understanding the security and privacy risks resulting from those information exchanges.
Organizational systems can inherit risk from downstream systems through transitive connections and information exchanges, which can make the organizational systems more susceptible to threats, hazards, and adverse impacts.
>Related Controls
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of CA-3(7) (Transitive Information Exchanges)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring CA-3(7)?
- •How frequently is the CA-3(7) policy reviewed and updated, and what triggers policy changes?
- •What training or awareness programs ensure personnel understand their responsibilities related to CA-3(7)?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce CA-3(7) requirements.
- •What automated tools, systems, or technologies are deployed to implement CA-3(7)?
- •How is CA-3(7) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce CA-3(7) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of CA-3(7)?
- •What audit logs, records, reports, or monitoring data validate CA-3(7) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of CA-3(7) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate CA-3(7) compliance?
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