Glossary

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Compromising Emanations
  • Electromagnetic emanations that may convey data and that, if intercepted and analyzed, may compromise sensitive information being processed by an ADP system (FIPS PUB 39;)
  • Unintentional data-related or intelligence-bearing signals which, if intercepted and analyzed, disclose the classified information transmission received, handled or otherwise processed by any information processing equipment. TEMPEST is an unclassified short name referring to investigations and studies of compromising emanations. It is sometimes used synonymously for the "compromising emanations". (OPNAVINST 5239. 1A;; AFR 205-16;; AFR 700-10;; AR 380-380;; NCSC-WA-001-85;; DOE 5636. 2A;)
  • Unintentional intelligence-bearing signals emitted from information processing equipment See TEMPEST. *Unintentional data-related or intelligence-bearing signals emitted from telecommunications or information processing equipment or systems NOTE: If intercepted and analyzed, compromising emanations can disclose classified or sensitive unclassified information transmitted, received, or processed by an equipment or system Also referred to as TEMPEST (NSA, National INFOSEC Glossary, 10/88)