Signals intelligence agencies

signals intelligence organization of the United States

France's external intelligence agency

Government Communications Headquarters (GCHQ) is an intelligence and security organisation responsible for providing signals intelligence (SIGINT) and information assurance (IA) to the government and armed forces of the United Kingdom. Primarily based at The Doughnut in the suburbs of Cheltenham, GCHQ is the responsibility of the country's Secretary of State for Foreign and Commonwealth Affairs (Foreign Secretary), but it is not a part of the Foreign Office and its director ranks as a Permanent Secretary.

secret treaty permitting internet surveillance

national cryptologic agency of the Government of Canada

interwar Polish-intelligence cryptology agency

Foreign military intelligence agency of the Soviet Army (1918-1992)

Swedish signals intelligence agency

FAPSI () or Federal Agency of Government Communications and Information (FAGCI) () was a Russian government agency, which was responsible for signal intelligence and security of governmental communications.

Japanese signals intelligence agency

Australian signals intelligence agency

New Zealand signals intelligence agency

government agency

DRSD is the abbreviation of Direction du Renseignement et de la Sécurité de la Défense (, ), a French security agency which is part of the Ministry of Armed Forces. It was established on 10 October 2016 out of the Directorate for Defense Protection and Security (Direction de la Protection et de la Sécurité de la Défense, DPSD), which was founded on 20 November 1981.

Technical security and intelligence service of Ukraine

LOVEINT is the practice of intelligence service employees making use of their extensive monitoring capabilities to spy on their love interest or spouse. The term was coined in resemblance to intelligence terminology such as SIGINT, COMINT or HUMINT.

national intelligence agency of Chile

MI8, or Military Intelligence, Section 8 was a British Military Intelligence group responsible for signals intelligence and was created in 1914. It originally consisted of four sections: MI8(a), which dealt with wireless policy; MI8(b), based at the General Post Office, dealt with commercial and trade cables; MI8(c) dealt with the distribution of intelligence derived from censorship; and MI8(d), which liaised with the cable companies. During World War I MI8 officers were posted to the cable terminals at Poldhu Point and Mullion in Cornwall and Clifden in County Galway, continued until 1917 whe

signal corps of the Russian Armed Forces

operations center at the NSA

Dutch government organisation