Threats and Advice
Threat Levels
The majority of our work is secret: that’s how we can stay ahead of our adversaries to keep the country safe. Where necessary, we share information in order to inform the public about the threats the UK faces, and what they can do about them.
The Joint Terrorism Analysis Centre (JTAC) sets the UK’s national terrorism threat level and the threat level for Northern Ireland-related terrorism in Northern Ireland.
Find out more about the terrorism threat levels
Threat updates
From time to time, the Director General of MI5 will provide a public update on the national security threats facing the UK.
Read latest news
Protective Security Advice
A fundamental part of the work of MI5 is using our intelligence to inform expert protective security advice. The National Protective Security Authority is part of MI5 and offers advice, guidance and training on physical and personnel security, to a whole host of organisations.
Visit the NPSA website
Travel advice
The Foreign Commonwealth and Development Office provide travel advice for countries around the world, which includes information about the threat posed by terrorism.
Visit the FCDO travel advice page
