The National Cyber Security Centre

Helping to make the UK the safest place to live and do business online. Read more about the NCSC.

The National Cyber Security Centre a part of GCHQ

Latest information on malicious cyber activity

The NCSC, FBI and DHS have issued a joint Technical Alert about malicious cyber activity carried out by the Russian Government.

This advisory provides information on the worldwide cyber exploitation of network infrastructure devices (e.g. routers, switches, firewalls, Network-based Intrusion Detection System (NIDS) devices) by Russian state-sponsored cyber actors.

Additional information around the joint US and UK statement about malicious cyber activity carried out by the Russian government.

CYBERUK 2018 round-up

Highlights from CYBERUK 2018, the NCSC's 3-day flagship event on cyber security. 


Director GCHQ, Jeremy Fleming, opened the final day of CYBERUK 2018 with his first public speech.

A selection of images from CYBERUK 2018 with more to come!

Ciaran Martin, CEO of the NCSC, looks back on a successful CYBERUK 2018.

A report examining how nefarious cyber activity over the past 12 months has impacted UK businesses.

cyber threat to UK business

CyberFirst Girls Competition 2018

The 2018 CyberFirst Girls Competition reaches its conclusion at the grand final in Manchester

Check out the image gallery from this year's CyberFirst Girls Competition final in Manchester

Learn more about CyberFirst and the annual Girls Competition.

The UK will be implementing the EU directive on the security of Networks and Information Systems (known as the NIS Directive). Our NIS Guidance Collection guidance helps 'Operators of Essential Services' to implement the Directive.

Europe networks

Active Cyber Defence – one year on

A paper written by Dr Ian Levy, Technical Director of the NCSC, following a year of the Active Cyber Defence programme.

Ian Levy discusses a new academic paper which shows how UK citizens are safer in cyberspace thanks to the ACD programme.

Results of the NCSC's Active Cyber Defence programme have been revealed in figures published today.

NCSC industry 100 copyright NCSC

At the NCSC we are inviting organisations of all sizes to work with us to achieve a greater understanding of the cyber security environment.

Cyber Essentials helps you to guard against the most common cyber threats and demonstrate your commitment to cyber security.

Cyber Essentials

Press & Media

The NCSC launches its first cyber security guidance for the charity sector.

The National Cyber Security Centre has hosted Commonwealth leaders and delegates to Nova South

The NCSC and law enforcement are implementing a new cyber incident prioritisation framework.

Find out about the NCSC...

The NCSC is making the UK one of the safest places in the world to live and do business online.

Read about the key events that lead to the formation of the National Cyber Security Centre.

Find out who makes up the NCSC leadership team. 

Services and resources

Cyber Aware provides cyber security advice for small businesses and individuals. By using strong passwords made up of three random words and always downloading the latest software updates, you can help protect your devices from cyber criminals.

Protect your business against cyber threats. Cyber Essentials is a government-backed and industry-supported scheme to guide businesses in protecting themselves against cyber threats. Cyber Essentials is for all organisations, of all sizes, and in all sectors - we encourage all to adopt the requirements as appropriate to their business.

Join our community on CiSP. CiSP allows members from across sectors and organisations to exchange cyber threat information in real time, in a secure and dynamic environment, while operating within a framework that protects the confidentiality of shared information.