SIGINT
SIGINT
From Wikipedia, the free encyclopedia.
SIGINT stands for Signals Intelligence, and refers to intelligence-gathering by interception of signals, whether by radio interception or other means.
As sensitive information is often encrypted, SIGINT often involves the use of cryptanalysis. However, traffic analysis can be used to gather information even when the messages themselves cannot be decrypted.
Past and Present SIGINT Activities
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Ultra
Related Topics
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HUMINT - Intelligence gathered by a person on the ground
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IMINT - Intelligence gathered by satellite and aerial photography
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