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  2. United States security clearance - Wikipedia

    en.wikipedia.org/wiki/United_States_security...

    The Defense Counterintelligence and Security Agency is the primary security agency [39] that conducts background investigations for the Federal Government, conducting 95% of all background investigations for over 100 agencies and conducting approximately 2 million background investigations each year.

  3. List of U.S. security clearance terms - Wikipedia

    en.wikipedia.org/wiki/List_of_U.S._security...

    Security clearances can be issued by many United States of America government agencies, including the Department of Defense (DoD), the Department of State (DOS), the Department of Homeland Security (DHS), the Department of Energy (DoE), the Department of Justice (DoJ), the National Security Agency (NSA), and the Central Intelligence Agency (CIA).

  4. Classified information in the United States - Wikipedia

    en.wikipedia.org/wiki/Classified_information_in...

    Step 3 in the classification process is to assign a reason for the classification. Classification categories are marked by the number "1.4" followed by one or more letters (a) to (h): [50] [52] 1.4(a) military plans, weapons systems, or operations; 1.4(b) foreign government information; 1.4(c) intelligence activities, sources, or methods, or ...

  5. Trusted Computer System Evaluation Criteria - Wikipedia

    en.wikipedia.org/wiki/Trusted_Computer_System...

    The national security community responded to the challenges in two ways: the Office of the Secretary of Defense commissioned a study of the policy and technical issues associated with securing computer systems, while ARPA funded the development of a prototype secure operating system that could process and protect classified information.

  6. Classified information - Wikipedia

    en.wikipedia.org/wiki/Classified_information

    On 19 July 2011, the National Security (NS) classification marking scheme and the Non-National Security (NNS) classification marking scheme in Australia was unified into one structure. As of 2018, the policy detailing how Australian government entities handle classified information is defined in the Protective Security Policy Framework (PSPF).

  7. Special access program - Wikipedia

    en.wikipedia.org/wiki/Special_access_program

    DOD 5220.22-M, National Industrial Security Program Operating Manual (NISPOM), 28 February, 2006; DODD 5200.1-R, Information Security Program, January 1997; EO 13526, Classified National Security Information, 29 December 2009; Intelligence Community Authorized Classification and Control Markings, Register and Manual, vol. 5, no. 1, (2012)

  8. Interagency Security Classification Appeals Panel - Wikipedia

    en.wikipedia.org/wiki/Interagency_Security...

    The Interagency Security Classification Appeals Panel, or "ISCAP", provides the public and users of the classification system [clarification needed] with a forum for further review of classification decisions. ISCAP states in order to foster a well-informed public while simultaneously protecting national security interests, checks and balances ...

  9. Sensitive but unclassified - Wikipedia

    en.wikipedia.org/wiki/Sensitive_but_unclassified

    Sensitive Security Information (SSI) is a category of sensitive but unclassified information under the United States government's information sharing and control rules, often used by TSA and CBP. SSI is information obtained in the conduct of security activities whose public disclosure would, in the judgment of specified government agencies ...