SIGINT

For other uses, see Sigint (disambiguation). SIGINT stands for SIGnals INTelligence, which is a intelligence-gathering by interception of signals, whether between people (i.e., COMINT or communications intelligence) or between machines (i.e., ELINT or electronic intelligence), or mixtures of ther two. As sensitive information is often encrypted, SIGINT often involves the use of cryptanalysis. However, traffic analysis—the study of who is signalling whom and in what quantity—can often produce valuable information, even when the messages themselves cannot be decrypted. See  SIGINT by Alliances, Nations and Industries for the organization of SIGINT activities, and SIGINT Operational Platforms by Nation for current collection systems, and SIGINT in Modern History for World War I to the present.
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Noun
1. intelligence information gathered from communications intelligence or electronics intelligence or telemetry intelligence
(synonym) signals intelligence
(hypernym) intelligence, intelligence activity, intelligence operation
(hyponym) electronics intelligence, ELINT

Acronym for signals intelligence.

1. A category of intelligence comprising, either individually or in combination, all communications intelligence, electronics intelligence, and foreign instrumentation signals intelligence, however transmitted. [JP1] 2. Intelligence derived from communications, electronics, and foreign instrumentation signals. [JP1]

Signal Intelligence