NCSC Profile Banner
NCSC UK Profile
NCSC UK

@NCSC

Followers
143K
Following
7K
Media
11K
Statuses
18K

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
Don't wanna be here? Send us removal request.
@NCSC
NCSC UK
12 days
As the UK’s technical authority on cyber security, our mission is to make the UK the safest place to live and work online. We work round the clock to counter the threats facing the UK, wherever they may come from, and to empower organisations to protect themselves.
16
20
69
@NCSC
NCSC UK
8 hours
RT @ukhomeoffice: 🎫 Looking to score tickets to a big match? Don’t rush - FOMO can cost you. Over £2.5 million has been lost to football t….
0
16
0
@NCSC
NCSC UK
13 hours
CYBERUK returns in 2026 for our 10th year. Subscribe to our mailing list now to be the first to hear more: Get a taste of what’s coming by rewatching the highlights from this year’s unforgettable event 👇.
2
4
13
@NCSC
NCSC UK
3 days
Technology is rapidly changing the way we live, work, and connect. Digital innovations are at the heart of modern life, and that’s why it’s more important than ever to protect them. Visit for practical cyber security guidance and free online tools.
10
30
54
@NCSC
NCSC UK
5 days
Missing CYBERUK? Don’t worry we’ll be back next year for our 10th anniversary! . Subscribe to our mailing list now and be the first to get updates for #CYBERUK26:
Tweet card summary image
ncsc.gov.uk
1
12
20
@NCSC
NCSC UK
7 days
Want to find out more about our cyber governance resources? They are designed to help boards and directors govern cyber risks effectively. Learn more here:
Tweet card summary image
ncsc.gov.uk
Resources to enable Boards to govern cyber risks with confidence.
0
0
1
@NCSC
NCSC UK
7 days
Senior leaders from the UK food retail sector convened at NCSC headquarters earlier this week as part of ongoing discussions to raise collective cyber resilience. Here’s what NCSC CEO Dr Richard Horne had to say⬇️
Tweet media one
2
5
14
@NCSC
NCSC UK
7 days
Exercise in a Box is our free online resource which helps organisations test and practise their response to a cyber attack. Learn more⬇️.
Tweet card summary image
ncsc.gov.uk
A free resource to help organisations rehearse their response to cyber attacks.
0
15
31
@NCSC
NCSC UK
9 days
RT @CYBERUKevents: CYBERUK returns in 2026 for our 10th year. Subscribe to our mailing list now to be the first to hear more: https://t.co/….
0
3
0
@NCSC
NCSC UK
9 days
What does it really mean to be cyber resilient?. Our CEO Dr Richard Horne says it comes down to three things:.1. Exposure.2. Defences.3. Consequences. Hear more in his conversation on the @McCraryCyber's Cyber Focus podcast now⬇️.
16
15
32
@NCSC
NCSC UK
10 days
🆕Alongside international partners, we have today published a cyber security advisory highlighting recent techniques by Scattered Spider threat actors against a range of organisations. Read the advisory for recommended mitigations and defensive guidance:.
cisa.gov
@CISACyber
CISA Cyber
10 days
🕷️🚨 Scattered Spider threat actors are using social engineering techniques like phishing, push bombing & SIM swap attacks to target #CriticalInfrastructure orgs & commercial facilities. Check out our updated joint advisory for recommended mitigations. 👉
Tweet media one
3
57
106
@NCSC
NCSC UK
11 days
RT @GCHQ: A small rebrand is in order 👀 . Congratulations, you awesome @Lionesses 🏆 . #WEURO2025 #Lionesses
Tweet media one
0
119
0
@NCSC
NCSC UK
12 days
Visit for practical cyber security guidance and free online tools .
1
2
6
@NCSC
NCSC UK
15 days
"Cyber Essentials makes you 92% less likely to file a cyber insurance claim.”. Our CEO, Dr Richard Horne, discussed five foundational principles for cyber security with @McCraryCyber ⬇️.
2
8
12
@NCSC
NCSC UK
16 days
🚨Organisations are encouraged to take immediate action to mitigate a vulnerability affecting certain Microsoft SharePoint Server products. Here’s what you need to know and do next ⬇️.
Tweet card summary image
ncsc.gov.uk
The NCSC is encouraging UK organisations to take immediate action to mitigate a vulnerability (CVE-2025-53770) affecting Microsoft SharePoint Server products.
5
27
25
@NCSC
NCSC UK
17 days
Most cyber attacks are basic - the digital equivalent of a thief trying your front door to see if it’s unlocked. Cyber Essentials helps you bolt your door against the most common cyber attacks. Learn more⬇️.
ncsc.gov.uk
Protect your organisation, whatever its size, against the most common cyber threats.
8
20
35
@NCSC
NCSC UK
18 days
Tonight, the NCSC features on @BBCPanorama’s ‘Fighting Cyber Criminals’ where we share some of our work countering threats, supporting victims and empowering organisations to protect themselves. Watch on BBC1 at 8:30pm or on iPlayer now.
Tweet card summary image
bbc.co.uk
Cyberattacks are on the rise. Reporter Richard Bilton investigates the online crimewave and meets the secret agents trying to stop the hackers.
3
26
51
@NCSC
NCSC UK
19 days
Did you catch our CEO Richard Horne on @BBCr4today this morning?. Visit our website for a range support and guidance for businesses in the UK to improve their cyber resilience and protect themselves from threats⬇️.
@BBCr4today
BBC Radio 4 Today
19 days
"The challenge for many organisations is just making it a priority. recognising the urgency.". Richard Horne, National Cyber Security Centre CEO, speaks to #R4Today after it said it was dealing with at least one ransomware attack a day.
14
20
27
@NCSC
NCSC UK
21 days
Today’s attribution comes as the UK Government sanctions GRU Units and 18 Russian individuals for malicious hybrid operations.
Tweet card summary image
gov.uk
The UK has exposed Russian spies responsible for spreading chaos and disorder on Putin's orders.
1
6
18
@NCSC
NCSC UK
21 days
Here’s what NCSC Director of Operation, Paul Chichester said 👇
Tweet media one
2
4
8