gchq

The contribution of famed codebreaking facility Bletchley Park to the Allied victory in World War II has been overstated, according to the author of an official history of British intelligence agency GCHQ.

The UK's largest spy agency GCHQ has sent out its annual Christmas card complete with a brainteaser.

The UK's largest spy agency, GCHQ, has sent out its annual Christmas card -- with a set of puzzles aimed at inspiring young would-be secret agents.