If you design or maintain an Operational Technology (OT) network, our secure connectivity principles can help you build cyber resilience.
Make sense of navigating cyber, operational and safety considerations with our new fictional worked example⬇️🚰
We are the National Cyber Security Centre – part of the UK’s intelligence & cyber agency @GCHQ. We help to make the UK the safest place to live and work online.
- If you've been the victim of a data breach, stay alert to scammers using phishing messages, emails and calls asking you to click links or share sensitive information. For guidance on how to spot such messages and what to do if your data has been breached⬇️ ncsc.gov.uk/guidance/data-…
- The NCSC is a partner for @AMLUCS, the Applied Machine Learning for Cyber Security Conference 2026, 23-24 September. The programme covers AI security threats, offensive/defensive AI, multi-agent system design, governance, and more. For more information:
- Cyber incidents targeting critical national infrastructure are becoming more frequent. With our Five Eyes partners, we have produced joint guidance on isolating vital systems - see CISA's post⬇️ Read the NCSC's severe cyber threat guide: ncsc.gov.uk/collection/how…We’re united with international partners in our #CIFortify initiative to help #CriticalInfrastructure orgs prepare to isolate & recover vital systems during crisis & continue delivering the essential services citizens rely on. Read the latest guidance 🔗 go.dhs.gov/5Wz
- Understanding your supply chain is the first step to securing it.✅ Cyber Essentials provides a clear way to save time and reduce complexity on cyber security due diligence. To find out whether your suppliers are certified, try the supplier check tool⬇️ ncsc.gov.uk/cyberessential…



