United States General Accounting Office Washington United States
National security information includes classified information pertaining to national defense and foreign relations. The protection of classified information generally falls into three broad categories--information security, physical security, and personnel security. Briefly, information security involves the proper classification and marking of national security information physical security involves the safe transmission and secure use and storage of the classified information and personnel security involves the investigation and adjudication of information concerning an individual, needed to determine that the individual is trustworthy and can be given access to classified information.
01 Jan 0001, 01 Jan 0001, Statement of Bill W. Thurman BEFORE THESUBCOMMITTEE ON GOVERNMENT INFORMATION, JUSTICE AND AGRICULTUREHOUSE COMMITTEE ON GOVERNMENT OPERATIONS.