GCHQ is headquartered at "The Doughnut", which receives its nickname for its resemblance to the sweet treat, in Cheltenham, Gloucestershire. However, the government agency also has offices across ...

It is best known for its work during WW2, when a team led by Alan Turing cracked the German ‘Enigma’ code and helped to end the war. GCHQ is headquartered at "The Doughnut", which receives its ...

The card features a map of the U.K., linked to the locations where GCHQ has bases, including its high-tech headquarters in Cheltenham, western England, nicknamed the doughnut because of its shape.

GCHQ, Britain’s electronic and cyber-intelligence agency, on Wednesday published its annual Christmas Challenge – a seasonal ...