MI5

The Security Service, better known as MI5, is Britain’s counterintelligence service responsible for internal security. It is in charge of counterterrorism, fighting both dissident republican groups in Northern Ireland and dealing with the Islamist threat.

Refine your search

Sign up for real-time alerts and be notified of new editions!  

Once registered, you will be notified by a short message on your computer or mobile phone as soon as a new edition of our publication or an alert is published. Stay informed anytime, anywhere!