GCHQ
@GCHQ

The UK's intelligence, security and cyber agency, helping to keep the UK safe online and in the real world. Follow the cyber security arm of our mission @NCSC.

 United Kingdom
gchq.gov.uk
Joined January 2016
6,925 Photos and videos
We love our puzzles 🧩 Our latest book - #PuzzlesForSpies is perfect for the spies of the future to test their problem-solving skills and is packed cover-to-cover with tricky brainteasers and challenges for the next generation of super sleuths to take on. @PenguinUKBooks
A book titled "Puzzles for Spies" by GCHQ lies on a table next to a magnifying glass and other puzzle sheets.

ALT A book titled "Puzzles for Spies" by GCHQ lies on a table next to a magnifying glass and other puzzle sheets.

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Time for this week’s brain teaser 🤔 Grab a coffee, get thinking, and see if you can solve the #GCHQPuzzle.
A GCHQ puzzle card titled "Number Sequence" with an Enigma Rating of 1. The sequence shown is: 1, 2, 4, 5, 6, 8, 10, 40, 46, 60, 61, 64, 80, 84, followed by a question mark. The card features the GCHQ logo and the hashtag #GCHQPuzzle.

ALT A GCHQ puzzle card titled "Number Sequence" with an Enigma Rating of 1. The sequence shown is: 1, 2, 4, 5, 6, 8, 10, 40, 46, 60, 61, 64, 80, 84, followed by a question mark. The card features the GCHQ logo and the hashtag #GCHQPuzzle.

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A great thing about working at GCHQ is knowing that you're contributing to keeping the nation safe. Everyone plays their part in helping protect the UK, from our project managers and programmers to intelligence analysts, linguists and mathematicians. gchq.gov.uk/working-at-gchq
A person is working at a desk with multiple computer monitors in a modern office setting. The monitors display various digital data and graphics. A cylindrical column in the foreground features stylized digital circuit patterns with binary numbers.

ALT A person is working at a desk with multiple computer monitors in a modern office setting. The monitors display various digital data and graphics. A cylindrical column in the foreground features stylized digital circuit patterns with binary numbers.

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Interested in the history of intelligence? 📖 Join others @bletchleypark for the National History of Intelligence Conference to hear leading voices, discover new perspectives and be part of the conversation. Book your tickets today 🎟 bletchleypark.org.uk/nihc/
The image features the National Intelligence History Conference banner over a photograph of the historic mansion at Bletchley Park. The banner includes logos, and the event is scheduled for 14th-16th October. Viewers are directed to visit bletchleypark.org.uk for a full list of speakers and to purchase tickets. Bletchley Park and GCHQ logos are visible at the bottom.

ALT The image features the National Intelligence History Conference banner over a photograph of the historic mansion at Bletchley Park. The banner includes logos, and the event is scheduled for 14th-16th October. Viewers are directed to visit bletchleypark.org.uk for a full list of speakers and to purchase tickets. Bletchley Park and GCHQ logos are visible at the bottom.

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You may have heard tales of secrecy and handshakes, the reality is that you can learn about careers at GCHQ in much the same way you would with any other employer. The key for us is gathering the right mix of minds, could you be joining us? 🔗 gchq.gov.uk/working-at-gchq
A person descends a spiral staircase in a modern building with a textured wall. A quote above expresses dedication to safeguarding the UK's interests, attributed to Nia, Deputy Director for Economy and Society Resilience, NCSC.

ALT A person descends a spiral staircase in a modern building with a textured wall. A quote above expresses dedication to safeguarding the UK's interests, attributed to Nia, Deputy Director for Economy and Society Resilience, NCSC.

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GCHQ retweeted
NCSC UK
@NCSC
Sep 16
A new advisory exposes Iranian state cyber attackers using malware dubbed CHOSEN BRICK. Our Director of Operations Paul Chichester @0xchich says individuals at risk should follow advice in our new advisory⬇️ ncsc.gov.uk/news/iranian-cyb…
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GCHQ retweeted
NCSC UK
@NCSC
Sep 15
Today, the NCSC alongside the @FBI and the Dutch AIVD, has published an advisory exposing spyware used by Iranian state actors to target dissidents, activists, and journalists. 1/2
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Think you’ve got what it takes to crack this week’s #GCHQPuzzle. 👀 Put your brain to the test and see if you can spot the answer, and then challenge a friend 🕵️‍♀️
The image shows a puzzle with an "Enigma Rating" of 1 from GCHQ. The puzzle text reads: "Name. M lives in Q, and is very fond of G. M is married to J, and they have two children, C and V. What do the children call M?" The GCHQ logo is at the bottom.

ALT The image shows a puzzle with an "Enigma Rating" of 1 from GCHQ. The puzzle text reads: "Name. M lives in Q, and is very fond of G. M is married to J, and they have two children, C and V. What do the children call M?" The GCHQ logo is at the bottom.

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GCHQ retweeted
NCSC UK
@NCSC
Sep 14
Passkeys are a faster, simpler and more secure way to sign in and forget the password headaches.🔐 Millions of users will now be able to choose passkeys on GOV.UK One Login for improved security and usability at point of access. @DCMS ncsc.gov.uk/passkeys
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On the 25th anniversary of 9/11, we remember the nearly 3,000 people who were killed, including 67 Britons. My thoughts are with all those who lost friends and family members that terrible day. Time may pass, but I know the grief is still felt just as deeply today. On this anniversary, we must remember that hatred and fear did not have the last word on 9/11. The terrorists sought to weaken and divide America, and everyone who believes in the values our countries share. But our response was clear: those who seek to destroy our way of life will never win. I saw that same defiance in Greater Manchester. When I was Mayor, Manchester was the victim of two horrific terrorist attacks. I will never forget the messages of support and friendship from people across America who knew better than anyone the suffering of our city. Some of the children of those killed in the 9/11 attacks wrote to the families of the people killed in Manchester, and they said this: We are you and you are us. We are one. We will never forget these terrible events, but we refuse to be defined by them. Terror still knocks on the door of democracy, but the United Kingdom and the United States stand together in memory of those we lost, and in defence of the values we cherish. We are you and you are us. And we will prevail.
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On the 25th anniversary of the 9/11 terror attacks, the United Kingdom remembers the near 3,000 people who lost their lives on that terrible day, including 67 British citizens. We pay tribute to all those affected including frontline emergency workers, who continue to confront the threat of terrorism and put their lives at risk to protect others. We honour the courage and sacrifice of members of the Armed Forces who have lost their lives in the fight against terrorism. Britain stood with our American friends a quarter of a century ago. We stand with you today. 🇬🇧🇺🇸
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Today we remember all those killed in the 9/11 attacks, including 67 British nationals. 25 years on, the UK stands with the United States in remembrance, solidarity and shared resolve. We will never forget.
Graphic showing New York skyline with two beams of light shining into the sky with text: 25 years. Never forget.

ALT Graphic showing New York skyline with two beams of light shining into the sky with text: 25 years. Never forget.

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25 years on, we pause to remember the lives lost and the communities whose lives were changed forever. We remember the courage and dedication of those who responded and the people across the world who have worked tirelessly in the years since to help keep others safe.
Skyline of New York City at night with buildings illuminated. Two beams of blue light shine upwards, symbolising the twin towers memorial. Text reads: "September 11, 2001 – 25 Years. Remembering the lives lost. Never forgotten.

ALT Skyline of New York City at night with buildings illuminated. Two beams of blue light shine upwards, symbolising the twin towers memorial. Text reads: "September 11, 2001 – 25 Years. Remembering the lives lost. Never forgotten.

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We've asked our brilliant linguist community to tell us their favourite phrases and idioms from the many languages that we delve into. What classic phrase, that we use in daily business, could this direct translation mean?
Image featuring a pair of traditional Dutch wooden shoes, known as clogs, with decorative carvings. A caption says 'I can feel it in my clogs - Dat kan ik op mijn klompen aanvoelen.' The logo of GCHQ is also visible.

ALT Image featuring a pair of traditional Dutch wooden shoes, known as clogs, with decorative carvings. A caption says 'I can feel it in my clogs - Dat kan ik op mijn klompen aanvoelen.' The logo of GCHQ is also visible.

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We have recognised neurodiversities, including dyslexia, as a mission-critical skill in what we do, actively seeking dyslexic thinking. The @MadeByDyslexia Intelligence 5.0 report studies how much we value such super skills. madebydyslexia.org/MBD-Intel…
Quote by Anne Keast-Butler on the value of neurodiversity and dyslexic thinking at GCHQ, from the Made By Dyslexia Intelligence Report 5.0, September 2024, with the GCHQ logo at the top.

ALT Quote by Anne Keast-Butler on the value of neurodiversity and dyslexic thinking at GCHQ, from the Made By Dyslexia Intelligence Report 5.0, September 2024, with the GCHQ logo at the top.

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🤔 Ready for a Monday morning brain teaser? Put your thinking cap on and see if you can solve this week's #GCHQPuzzle. Pop your answer in the comments, the solution will be revealed tomorrow 👀
A pink puzzle image with the title "Enigma Rating 1" from GCHQ. The puzzle involves filling in blanks in phrases: a) Golden _____ Sugar, b) True ____ ____ River, c) Blackberry ____ ____ Pressure, d) Ma _____ _____ __ ___ Brigade. #GCHQPuzzle is at the bottom.

ALT A pink puzzle image with the title "Enigma Rating 1" from GCHQ. The puzzle involves filling in blanks in phrases: a) Golden _____ Sugar, b) True ____ ____ River, c) Blackberry ____ ____ Pressure, d) Ma _____ _____ __ ___ Brigade. #GCHQPuzzle is at the bottom.

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Well done for those that got it right this week, see you next time 🔗🔗
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At GCHQ, we're always on the lookout for innovative minds to join our team 🕵️‍♀️🕵️‍♂️ If you have: 🔹 A passion for problem-solving 🔹 An eye for detail 🔹 The ability to think outside the box Visit our careers page to find out more about current opportunites. gchq-careers.co.uk/
Overhead view of three individuals walking around a spiral staircase in GCHQ's HQ with a detailed tile floor.

ALT Overhead view of three individuals walking around a spiral staircase in GCHQ's HQ with a detailed tile floor.

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