GCHQ

Let the puzzling begin! Your weekly dose of #GCHQPuzzle is here 🧩 Put your best guess in the comments.

Disrupting high-harm criminals, networks and groups takes a team effort, which is why we work closely with law enforcement and partners. Our efforts extend to combating cybercrime, trafficking and the supply of drugs and firearms. Read more ➡️ gchq.gov.uk/section/missio…

Today, the NCSC, alongside international allies, has published a new advisory on defending against the threat from Russian state intelligence actors. To read more on the threat and how to mitigate it ⬇️ ncsc.gov.uk/news/uk-and-al…

The @ComputerWeekly #UKTech50 list highlights the most influential people in tech and a trio of colleagues from GCHQ are included for 2026 🗒️ Their recognition reflects the expertise, leadership and commitment that underpin our work and the wider UK technology community 🌐

Don’t wait for the breach, sign up for tailored alerts on the cyber threats to your organisation's IP address. Early Warning delivers an average of 2,000 alerts a month, offering potentially invaluable time to detect and stop a cyber incident. Sign up⬇️ ncsc.gov.uk/section/active…

In this #GCHQPuzzle, one hidden connection ties these together 🪢 Solved it? Let’s hear your answer. ⤵️

Only the persistent can solve this one, are you one of them?🕵️‍♀️ Let us know how you get on with your weekly #GCHQPuzzle in the comments below.

Warfare is changing. It's why we're making the largest ever drone investment in our Armed Forces. 🚢 Autonomous submarine hunting frigates ✈️ Drone "wingmen" to fly alongside Apaches 💥 Thousands of low-cost kamikaze strike drones 🛰️ Surveillance drones to replace older systems

Whilst frontier AI can ultimately benefit our cyber defences, in the immediate term it is making it easier and faster for attackers to discover and exploit cyber weaknesses. Organisations should take these 5 urgent steps to maintain cyber security fundamentals:🧵

With our Five Eyes partners, we have published a joint statement warning organisations they have months - not years - to protect their systems from the accelerating cyber threat driven by frontier AI.🧵 To read the full statement⬇️ ncsc.gov.uk/news/the-ai-sh…

In May, Director GCHQ Anne Keast-Butler delivered our first ever annual lecture from our wartime home at Bletchley Park. Find out more here ⬇️ gchq.gov.uk/speech/gchq-an…

The iconic 'doughnut'. It's been our home for over 20 years, but did you know when GCHQ Cheltenham was built, it was Europe's biggest construction operation?! 🤯

“Cyber security is a continuous national contest with capable adversaries, requiring urgent, coordinated action across government, industry and individuals to strengthen resilience.” - NCSC CEO Dr Richard Horne delivering RUSI’s Annual Security Lecture this afternoon.

This week’s #GCHQPuzzle challenge starts now 🔐 Drop your answers below, let's see who gets it right first. 🧠

📺 GCHQ Historian Dr David Abrutat features in 'Secrets and Lies', an episode of @tomhanks' epic new series 'WWII with Tom Hanks' on @SkyHistory @Nutopia - airing this evening.

How did you fare with this week's #GCHQPuzzle? Here is the answer we were seeking

Puzzle people, assemble! It's #GCHQPuzzle time. 🧩 No cheating- answer first and then check the comments ⬇️