Welcome to GCHQ We are the UK's intelligence, security and cyber agency. Our mission is to help keep the country safe. Featured Information Our mission to help keep the UK safe Discover how we help …

Dec 10, 2025 · Director GCHQ, Anne Keast-Butler, said: "Puzzles are at the heart of GCHQ's work to keep the country safe from hostile states, terrorists and criminals; challenging our teams to think …

Overview GCHQ is a world-leading intelligence, cyber and security agency with a mission to keep the UK safe Our brilliant people use cutting-edge technology, technical ingenuity and wide-ranging …

Aug 7, 2020 · Through the National Cyber Security Centre (NCSC), a part of GCHQ, we are making the UK the safest place to live and work online. This work to protect the UK’s citizens, businesses and …

Jun 5, 2020 · GCHQ first came to Cheltenham in the 1950s. The site in Oakley opened in 1952, with operations ceasing almost 60 years later, following the move into the new headquarters in Benhall.

May 14, 2024 · The UK's cyber security mission is led by the National Cyber Security Centre (NCSC), which is a part of GCHQ. The NCSC helps protect the UK's critical services from cyber attacks, …

At GCHQ you can have a varied and rewarding career working for an organisation that is pioneering a new kind of security for an ever more complex world

Oct 29, 2025 · Get ready to solve the latest GCHQ puzzles and brainteasers, as the Christmas Challenge returns. The Christmas Challenge is designed by GCHQ’s own codebreakers to give your …

Dec 11, 2024 · Director GCHQ, Anne Keast-Butler, said: “Puzzles have always been at the heart of GCHQ, and the skills needed to solve them are just as relevant in 2024 as they were over 100 years …

GCHQ is publishing this paper as part of that national dialogue, to explore how we should best understand and deploy AI. Our teams have benefited from the many rich conversations with our …