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 partnerships to identify, analyse and disrupt threats to the UK.
Our priorities are set by the Integrated Review Refresh 2023 and the decisions of the National Security Council, chaired by the Prime Minister, as well as the Joint Intelligence Committee.
We always strive to stay one step ahead of those who are looking to cause our nation and its people harm. Our focus changes as the global threats evolve.
Our role in keeping the UK digital homeland safe and prosperous is more crucial than ever.
We employ three capabilities across five mission areas to carry out our work.
Mission Areas
Counter Terrorism - Stopping terrorist attacks in the UK and against our interests overseas
Cyber Security - Making the UK the safest place to live and do business online
Strategic Advantage - Managing the threats from hostile states, promoting the UK's prosperity and shaping the international environment
Serious & Organised Crime - Reducing the social and financial harm that serious and organised crime causes to the UK
Support to Defence - Protecting Defence personnel and assets and supporting an integrated approach to war fighting
Capabilities
Collection - governed by strict legislation, we use a range of methods to gather communications and data that we believe has intelligence value
Analysis - we analyse the communications and data that we collect to produce intelligence reports
Effects - we have a range of online capabilities that can lead to a real world outcome