NCSC UK (@NCSC) / X

NCSC UK

18.5K posts

NCSC UK

@NCSC

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.

London, England

Joined November 2015

NCSC UK
@NCSC
Jul 13
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…
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NCSC UK
@NCSC
Jul 11
Cyber deception as a defensive strategy 'is both a viable tool and a valuable tool when used in the right way to disrupt adversaries.' NCSC CTO Ollie Whitehouse on how deception can be used for threat intelligence and threat detection. To learn more⬇️ ncsc.gov.uk/blog-post/cybe…
Tracebit
@tracebit_com
Jul 9
🎙️Episode 5 of Canaries in the Wild is now live with Ollie Whitehouse, CTO of the UK's @NCSC. Ollie has spent 23 years in and around deception – from running personal honeypots in 2002, to catching state adversaries and a criminal zero-day at a previous employer, to now leading
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NCSC UK
@NCSC
Jul 7
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…
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NCSC UK
@NCSC
Jul 1
Mitigating the threat from future quantum computers is a challenge that needs addressing now. Migration to post-quantum cryptography (PQC) will take years to complete. To learn about the key milestones and necessary steps to take towards PQC⬇️ ncsc.gov.uk/guidance/pqc-m…
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NCSC UK
@NCSC
Jul 1
Listen to the PQC episode of our NCSC Cyber Series podcast to learn more about what “the quantum threat” really means and how organisations should prepare ⬇️
open.spotify.com
Post-Quantum Cryptography
NCSC Cyber Series · Episode
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NCSC UK
@NCSC
Jun 30
Dr Margaret Heffernan, expert in management thinking, explains that leaders must set the tone for their organisation’s resilience to cyber security incidents. Don’t wait for the breach; keep your business goals on track with our culture principles⬇️ ncsc.gov.uk/collection/cyb…
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NCSC UK
@NCSC
Jun 30
Watch the full #CYBERUK26 interview:
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NCSC UK
@NCSC
Jun 27
At #CYBERUK26, David Koh, CSA Singapore's founding CEO, reflected on the importance of building a cyber defender community. Together with our partners across government, industry and academia, the NCSC supports a data-led, collaborative response to threat insight and sharing🧵
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NCSC UK
@NCSC
Jun 27
Last year, our i100 and Cyber League schemes broadened and deepened in expertise, driving resilience through strong public-private partnership. Want to find out more? Head to
About i100
From ncsc.gov.uk
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NCSC UK
@NCSC
Jun 27
Watch the full interview 📺
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NCSC UK
@NCSC
Jun 26
This year's CyberFirst Social Value Report highlights the positive impact of early skills investment in classrooms, communities, and ultimately across the wider UK economy and society. Learn more: ncsc.gov.uk/sites/default/…
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NCSC UK
@NCSC
Jun 25
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:🧵
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NCSC UK
@NCSC
Jun 25
✅Reduce your attack surface. ✅Accelerate patching processes. ✅Address legacy systems. ✅Review and strengthen identity and access controls. ✅Prepare for incidents before they happen.
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NCSC UK
@NCSC
Jun 25
Business leaders who act now will be in a much stronger position to maintain operational continuity, build market trust and benefit from the opportunities AI can offer. Ensure you are ready to counter AI-powered attacks with our guidance⬇️
Frontier AI: what you need to know
From ncsc.gov.uk
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NCSC UK
@NCSC
Jun 23
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⬇️
The AI shift in cyber risk: why leaders must act now
From ncsc.gov.uk
1M
NCSC UK
@NCSC
Jun 23
Leaders are urged to make cyber security whole-of-organisation, implement cyber security fundamentals & test incident response plans. For more on what orgs can do to prep for AI & a vulnerability patch wave⬇️ ncsc.gov.uk/blogs/prepare-…
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NCSC UK
@NCSC
Jun 20
Need a vibe check? Find out how our spectrum approach could help you build safer AI-assisted software:
The 'vibe coding spectrum' approach to AI-assisted software development
From ncsc.gov.uk
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NCSC UK
@NCSC
Jun 18
Organisations using Fortinet services are urged to investigate whether they have been affected by global targeting of firewalls and VPN gateways and should follow mitigation advice to help defend against the threat. For more information ⬇️
Alert: NCSC issues advice following global targeting of Fortinet firewalls and VPN gateways
From ncsc.gov.uk
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NCSC UK
@NCSC
Jun 17
“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.
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NCSC UK
@NCSC
Jun 17
The NCSC CEO also described the sustained pressure on the UK’s critical national infrastructure, noting that there were more than 200 cyber incidents between June 2025 and May 2026, with 75% of them believed linked to state actors. To read more ⬇️
NCSC CEO: Hostile states linked to three-quarters of cyber attacks affecting UK's critical systems
From ncsc.gov.uk
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