SC-32—System Partitioning
>Control Description
Partition the system into ⚙organization-defined system components residing in separate ☑physical; logical domains or environments based on ⚙organization-defined circumstances for physical or logical separation of components.
>Control Enhancements(1)
>Cross-Framework Mappings
>Supplemental Guidance
System partitioning is part of a defense-in-depth protection strategy. Organizations determine the degree of physical separation of system components. Physical separation options include physically distinct components in separate racks in the same room, critical components in separate rooms, and geographical separation of critical components.
Security categorization can guide the selection of candidates for domain partitioning. Managed interfaces restrict or prohibit network access and information flow among partitioned system components.
>Related Controls
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies govern the implementation of system partitioning?
- •How are system and communications protection requirements defined and maintained?
- •Who is responsible for configuring and maintaining the security controls specified in SC-32?
Technical Implementation:
- •How is system partitioning technically implemented in your environment?
- •What systems, tools, or configurations enforce this protection requirement?
- •How do you ensure that system partitioning remains effective as the system evolves?
- •What network boundary protections are in place (firewalls, gateways, etc.)?
- •How is separation of duties or partitioning technically enforced?
Evidence & Documentation:
- •What documentation demonstrates the implementation of SC-32?
- •Can you provide configuration evidence or system diagrams showing this protection control?
- •What logs or monitoring data verify that this control is functioning correctly?
- •Can you provide network architecture diagrams and firewall rulesets?
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