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defense security system

Defined in 1 place of the United States Code.

The term "defense security system" means an information system (including a telecommunications system) used or operated by the Department of Defense, by a contractor of the Department, or by another organization on behalf of the Department, the function, operation, or use of which—

(i) involves command and control of an armed force;

(ii) involves equipment that is an integral part of a weapon or weapon system; or

(iii) subject to subparagraph (B), is critical to the direct fulfillment of military missions.

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