GCHQ
GCHQ, or Government Communications Headquarters, is the United Kingdom's intelligence and security agency responsible for signals intelligence and information assurance. It collects and analyzes foreign communications and data to support national security, defense, and the economy, and helps protect government networks and critical infrastructure from cyber threats. It operates alongside other UK agencies, notably MI5 and MI6, and participates in the Five Eyes alliance with the United States, Canada, Australia, and New Zealand.
GCHQ traces its origins to the Government Code and Cypher School, established in 1919 to break enemy
Core activities include signals intelligence gathering, cryptography and security research, and the protection of government communications
The agency is headed by a Director who reports to government ministers and is overseen by the