Government Communications Headquarters (GCHQ) is an intelligence and security organisation responsible for providing signals intelligence (SIGINT) and...

is a British linguist who worked as a translator for the Government Communications Headquarters (GCHQ). In 2003, she leaked top-secret information to The...

machinery alongside the Secret Intelligence Service (MI6), Government Communications Headquarters (GCHQ), and Defence Intelligence (DI). MI5 is directed by...

Director of the Government Communications Headquarters is the highest-ranking official in the Government Communications Headquarters (GCHQ), a British...

data collection programme operated by the United Kingdom's Government Communications Headquarters (GCHQ). In 2015, documents obtained by The Intercept from...

authorities, with support provided by around 400 staff from Government Communications Headquarters (GCHQ), in addition to United States Air Force (USAF) and...

(MI5), the Government Communications Headquarters (GCHQ) and Defence Intelligence (DI). The agencies are organised under three government departments...

CST), formerly (from 2008-2014) called the Communications Security Establishment Canada (CSEC), is the Government of Canada's national cryptologic agency...

An equivalent system was developed secretly in 1973 at Government Communications Headquarters (GCHQ), the British signals intelligence agency, by the...

In the early 1970s, while working at the United Kingdom Government Communications Headquarters (GCHQ), he developed an early public-key cryptography (PKC)...

inter-service Government Code and Cypher School (GC&CS), which subsequently developed into the Government Communications Headquarters (GCHQ) at Cheltenham...

intelligence agencies, the National Security Agency (NSA), the Government Communications Headquarters (GCHQ), and the BND, respectively. Crypto AG sold equipment...

Unlike its main sister agencies, Security Service (MI5) and Government Communications Headquarters (GCHQ), SIS works exclusively in foreign intelligence gathering;...

breaking during World War II. In the post-war period, the Government Communications Headquarters (GCHQ) was formed and participated in programmes such as...

provision about the Secret Intelligence Service and the Government Communications Headquarters, including provision for the issue of warrants and authorisations...

is used by the British Government Communications Headquarters (GCHQ). This system is used to buffer most Internet communications that are extracted from...

-76.0499409 Emergency Government Headquarters is the name given for a system of nuclear fallout shelters built by the Government of Canada in the 1950s...

states: the Government Communications Headquarters of the United Kingdom, the National Security Agency of the United States, the Communications Security...

and electronics businesses. The Government's electronic surveillance operation Government Communications Headquarters (GCHQ), known for its "doughnut-shaped"...

Director of the Implementation Group. In March 2015, he joined Government Communications Headquarters (GCHQ) as Director of Strategy. On 8 January 2016, Case...

of a surveillance program jointly operated by Britain's Government Communications Headquarters (GCHQ) and the U.S. National Security Agency (NSA) that...

Squeaky Dolphin is a program developed by the Government Communications Headquarters (GCHQ), a British intelligence and security organization, to collect...

the headquarters of MI5, the British domestic intelligence agency The Doughnut – the headquarters of the Government Communications Headquarters (GCHQ)...

Agreement connected the signal intercept networks of the UK Government Communications Headquarters (GCHQ) and the US National Security Agency (NSA) at the...

Sir Jeremy Ian Fleming KCMG CB was the Director of the Government Communications Headquarters, the UK's intelligence, cyber and security agency. He was...

British signals intelligence service, officially known as the Government Communications Headquarters, commonly abbreviated GCHQ. It is located on part of the...

to the outside world. Equivalents of Unit 8200 are the Government Communications Headquarters (GCHQ) of Britain and the National Security Agency (NSA)...

Chiefs have been: Director General of MI5 Director of the Government Communications Headquarters "The Chief". Secret Intelligence Service. Archived from...

senior civil servant who served as the Director of the Government Communications Headquarters (GCHQ) from 1996 to 1997. Omand was born on 15 April 1947...

Threat Research Intelligence Group (JTRIG) is a unit of the Government Communications Headquarters (GCHQ), the British intelligence agency. The existence of...