GRR-10—Defense in depth architecture
IL4 Mod
IL4 High
IL5
IL6
>Control Description
How robust is the CSP's required boundary protection (defense-in-depth security/protective measures) implemented between the internet and the CSO for its protection from internet-based threats?
>DoD Impact Level Requirements
No specific parameter values or requirements for this impact level.
>Discussion
See Section 5.10.3, and all subsections, of CC SRG V1R4 for additional details.
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What documented policies and procedures address defense in depth architecture?
- •Who is accountable for implementing and maintaining defense in depth architecture controls?
- •How frequently are defense in depth architecture requirements reviewed, and what triggers updates?
- •What process ensures changes to systems maintain compliance with defense in depth architecture requirements?
- •How are exceptions to defense in depth architecture requirements documented and approved?
Technical Implementation:
- •What technical controls enforce defense in depth architecture in your environment?
- •How are defense in depth architecture controls configured and maintained across all systems?
- •What automated mechanisms support defense in depth architecture compliance?
- •How do you validate that defense in depth architecture implementations achieve their intended security outcome?
- •What compensating controls exist if primary defense in depth architecture controls cannot be fully implemented?
Evidence & Documentation:
- •What documentation proves defense in depth architecture is implemented and operating effectively?
- •Can you provide configuration evidence showing how defense in depth architecture is technically enforced?
- •What audit logs or monitoring data demonstrate ongoing defense in depth architecture compliance?
- •Can you show evidence of a recent review or assessment of defense in depth architecture controls?
- •What artifacts would you provide during an assessment to demonstrate defense in depth architecture compliance?
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