SC-3(1)—Hardware Separation
>Control Description
Employ hardware separation mechanisms to implement security function isolation.
>Supplemental Guidance
Hardware separation mechanisms include hardware ring architectures that are implemented within microprocessors and hardware-enforced address segmentation used to support logically distinct storage objects with separate attributes (i.e., readable, writeable).
>Assessment Interview Topics
Questions assessors commonly ask
Process & Governance:
- •What policies govern the implementation of hardware separation?
- •How are system and communications protection requirements defined and maintained?
- •Who is responsible for configuring and maintaining the security controls specified in SC-3(1)?
Technical Implementation:
- •How is hardware separation technically implemented in your environment?
- •What systems, tools, or configurations enforce this protection requirement?
- •How do you ensure that hardware separation remains effective as the system evolves?
- •How is separation of duties or partitioning technically enforced?
Evidence & Documentation:
- •What documentation demonstrates the implementation of SC-3(1)?
- •Can you provide configuration evidence or system diagrams showing this protection control?
- •What logs or monitoring data verify that this control is functioning correctly?
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