CP-4(5)—Self-Challenge
>Control Description
Employ ⚙organization-defined mechanisms to ⚙organization-defined system or system component to disrupt and adversely affect the system or system component.
>Supplemental Guidance
Often, the best method of assessing system resilience is to disrupt the system in some manner. The mechanisms used by the organization could disrupt system functions or system services in many ways, including terminating or disabling critical system components, changing the configuration of system components, degrading critical functionality (e.g., restricting network bandwidth), or altering privileges. Automated, on-going, and simulated cyber-attacks and service disruptions can reveal unexpected functional dependencies and help the organization determine its ability to ensure resilience in the face of an actual cyber-attack.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What formal policies and procedures govern the implementation of CP-4(5) (Self-Challenge)?
- •Who are the designated roles responsible for implementing, maintaining, and monitoring CP-4(5)?
- •How frequently is the CP-4(5) policy reviewed and updated, and what triggers policy changes?
- •What governance structure ensures CP-4(5) requirements are consistently applied across all systems?
Technical Implementation:
- •Describe the specific technical mechanisms or controls used to enforce CP-4(5) requirements.
- •What automated tools, systems, or technologies are deployed to implement CP-4(5)?
- •How is CP-4(5) integrated into your system architecture and overall security posture?
- •What configuration settings, parameters, or technical specifications enforce CP-4(5) requirements?
Evidence & Documentation:
- •What documentation demonstrates the complete implementation of CP-4(5)?
- •What audit logs, records, reports, or monitoring data validate CP-4(5) compliance?
- •Can you provide evidence of periodic reviews, assessments, or testing of CP-4(5) effectiveness?
- •What artifacts would you present during a FedRAMP assessment to demonstrate CP-4(5) compliance?
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