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Want to know more about GCHQ's work to protect the UK?

News article - 09 Jun 2015
Our Counter Terrorism and Serious Crime teams tackle some of the most difficult challenges facing the UK.
To show the work that we do in these areas, we have published accounts from our analysts and linguists talking about their jobs.
Counter Terrorism infographic excerpt. Visit the Terrorism pages to view the full size version
©GCHQ 2015

Who we are

GCHQ is an intelligence and security organisation, working to keep Britain safe and secure in the challenging environment of modern communications.


What we do

UK citizens today conduct much of their lives over the internet, as do the Government, the Armed Services, Law Enforcement and industry.

For the UK to be safe and successful, the cyber connections and infrastructure we use need to be safe and secure. GCHQ plays a major role in making that a reality using our expertise and experience.

Image of a hand making a stop sign

How we work

GCHQ strives to ensure that life in the UK isn't compromised through cyber attack or on-line serious crime, employing some of the world's leading experts on Information Security.

Everything we do is governed by law, and overseen by the Foreign Secretary and other Ministers.


Latest news


29 Jun 2015 - Minister for the Cabinet Office visits GCHQ
Minister for the Cabinet Office (MCO) with responsibility for the UK Cyber Security Strategy, Matthew Hancock, visited GCHQ today.
GCHQ today announced that it has certified a further six Master’s degrees in Cyber Security from universities across the country to support cyber security education in the UK.
The Foreign Secretary today highlights the important work of the Cheltenham based Centre for Cyber Assessment.
Sir Mark Waller’s 2014 report was presented to Parliament today.
The Investigatory Powers Tribunal has issued its third and final judgment on challenges raised by Liberty, Privacy International and others, to the lawfulness of the UK’s bulk interception powers and of the intelligence-sharing arrangements between the UK and the US National Security Agency.
11 Jun 2015 - Independent Reviewer of Terrorism Legislation publishes his report into the laws governing investigatory powers
David Anderson QC publishes his report "A Question of Trust" which looks at the effectiveness of existing legislation relating to investigatory powers, and examines the case for a new or amended law.
Current and former students and apprentices from GCHQ demonstrate innovative science and technology games.
Ciaran Martin delivers the keynote address on cyber security at London's Olympia to an audience gathered for Infosecurity Europe 2015.
GCHQ lights its iconic building with a rainbow to mark International Day Against Homophobia, Biphobia and Transphobia.
Intelligence agency seeks graduates and non-graduates with complex coding and problem-solving skills.
GCHQ pays tribute to its predecessors on the 70th anniversary of the end of the Second World War in Europe.

Press Releases

The new scheme, launched by the Information Security Arm of GCHQ, provides government and industry with expert advice to meet their cyber security needs.
GCHQ's iconic Cheltenham building will be lit up in rainbow colours as a symbol of the organisation's commitment to diversity.
GCHQ unveils the world’s biggest Raspberry Pi ‘Bramble’ at the Big Bang Fair 2015 at the NEC Birmingham as it attempts to inspire the next generation of young talent to think about a future in science and technology.
Glowing laptop representing a cyber theme

CyberFirst - GCHQ Student Sponsorship Opportunity

News article - 25 Jun 2015
CyberFirst is a government-backed initiative to identify young people considering a future career in Cyber Security. We are looking for UK national competition winners, under 25 years old, who are planning to study or are already studying an undergraduate degree in a STEM subject at a UK university.

How does an analyst catch a terrorist?

Without the aid of dark glasses and trench coat, GCHQ works every day to keep the UK safe. One of GCHQ's most important tasks is to identify and analyse the international dimensions of terrorist threats to the UK. Every operation will be different.
For an example of how a potential threat might be identified, what a GCHQ intelligence analyst will do to learn more about it, and what that analyst will do with the information uncovered in the process.

Our journey

History and the Cryptoy app

Cryptoy is a fun, free, educational app about cryptography, designed by GCHQ for use by secondary school students and their teachers.
The app enables users to understand basic encryption techniques, learn about their history and then have a go at creating their own encoded messages. These can then be shared with friends via social media or more traditional means and the recipients can use the app to try to decipher the messages.
Director GCHQ, Robert Hannigan

Director GCHQ writes an opinion piece for the Financial Times

News article - 04 Nov 2014
In his first public statement, the new Director GCHQ Robert Hannigan discusses terrorist use of the Internet and how the security and intelligence agencies need greater support from technology companies to tackle this challenge.

Gloucestershire Young Entrepreneurs bring innovative ideas to GCHQ

Press Release - 27 Apr 2015
GCHQ, working with GFirst Local Enterprise Partnership (LEP), hosted over fifty Year 9 students (ages 13–14) from eight of Gloucestershire’s secondary schools who came into their Cheltenham headquarters to pitch business ideas as finalists in the 2015 Young Entrepreneurs Competition.