Signals intelligence (often contracted to SIGINT) is intelligence-gathering by interception of signals, whether between people ("communications intelligence"—COMINT), whether involving electronic signals not directly used in communication ("electronic intelligence"—ELINT), or combinations of the two. As sensitive information is often encrypted, signals intelligence often involves the use of cryptanalysis. Also, traffic analysis—the study of who is signaling whom and in what quantity—can often produce valuable information, even when the messages themselves cannot be decrypted.

As a means of collecting intelligence, signals intelligence is a subset of intelligence collection management, which, in turn, is a subset of intelligence cycle management.

Read more about Comint:  History, More Technical Definitions of SIGINT and Its Branches, COMINT, Electronic Signals Intelligence, SIGINT Versus MASINT, Defensive Signals Intelligence

Other articles related to "comint":

Signals Intelligence In The Cold War - US Movement To Centralization in SIGINT
... The Army Security Agency (ASA) had shared the national COMINT mission with the Navy's Communications Supplementary Activity (COMMSUPACT) - which became the Naval Security ... During and after World War II, a portion of Army COMINT assets was dedicated to support of the U.S ... Secretary of Defense James Forrestal rejected the early service COMINT unification plans ...
Comint - Defensive Signals Intelligence - Protection Against Side Channel Attacks and Covert Channels
... Covert channels are deliberate means to elude communications security ... They send out an unauthorized signal by stealing bandwidth from a legitimate, often encrypted channel ...
Traffic Analysis - In Military Intelligence - COMINT Metadata Analysis
... any references or sources The Communications' Metadata Intelligence, or COMINT metadata is a term in COMINT referring to the concept of producing intelligence by analyzing only the technical metadata, hence ... While traditionally information gathering in COMINT is derived from intercepting transmissions, tapping the target's communications and monitoring the content of conversations, the metadata intelligence is ... Non-content COMINT is usually used to figure information about the user of a certain transmitter, such as locations, contacts, activity volume, routine and its ...
Failure In The Intelligence Cycle - Collection - SIGINT - COMINT
... Another setback in communication intelligence is code breaking ... This falls into two categories verbal codes, and transmitted codes ...