What best describes the relationship between compartmentalization and need-to-know?

• A. Need-to-know determines access within a compartment.
• B. Compartmentalization eliminates need-to-know.
• C. They are unrelated concepts.
• D. Compartmentalization creates separate SCI compartments; need-to-know determines if a person has access within a compartment.

Answer: (B)

Compartmentalization creates separate SCI compartments, and need-to-know determines if a person has access within a compartment. Information is divided into isolated pockets to limit exposure, so merely having clearance isn’t enough to reach content in a compartment. Within that compartment, access to specific items or data is granted only if there is a demonstrated need to know. This combination ensures both broad structural separation and precise, need-driven access control.