National Security System Law and Legal Definition

According to 38 USCS § 5727(15) [Title 38. Veterans' Benefits; Part IV. General Administrative Provisions; Chapter 57. Records and Investigations; Subchapter III. Information Security] the term "national security system" means an information system that is protected at all times by policies and procedures established for the processing, maintenance, use, sharing, dissemination or disposition of information that has been specifically authorized under criteria established by statute or Executive Order to be kept classified in the interest of national defense or foreign policy.