Signals intelligence
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Signals intelligence (SIGINT) is the act and field of intelligence-gathering by interception of signals, whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT).
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See also
- Central Intelligence Agency Directorate of Science & Technology
- COINTELPRO
- ECHELON
- Foreign Intelligence Surveillance Act of 1978 Amendments Act of 2008
- Geospatial intelligence
- Human intelligence (espionage)
- Imagery intelligence
- Intelligence Branch (Canadian Forces)
- List of intelligence gathering disciplines
- Listening station
- Open-source intelligence
- Radio Reconnaissance Platoon
- RAF Intelligence
- Signals intelligence by alliances, nations and industries
- Signals intelligence operational platforms by nation for current collection systems
- SOT-A
- TEMPEST
- US signals intelligence in the Cold War
- Venona
- Zircon satellite
- Vulkan files leak
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