Definitions Edit

Information systems Edit

Black is the

[d]esignation applied to information systems, and to associated areas, circuits, components, and equipment, in which national security information is encrypted or is not processed.[1]
[a] term applied to wire lines, components, equipment, and systems which do not handle national security signals, and to areas in which no national security signals occur.[2]
[d]esignation for information system equipment or facilities that handle (and for data that contains) only ciphertext (or, depending on the context, only unclassified information), and for such data itself.[3]

Intelligence Edit

Black means "inconspicuousness in the sense of being free of hostile surveillance."[4]

References Edit

  1. CNSSI 4009.
  2. Tempest Glossary, at 1.
  3. Internet Security Glossary, at 21.
  4. Defense Intelligence Agency, Office of Counterintelligence, Terms & Definitions of Interest for DoD Counterintelligence Professionals GL-13 (May 2, 2011) (full-text).

See also Edit

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