To report an imminent threat call 999 or ring the Anti-Terrorist Hotline on 0800 789 321
Current national threat level: SUBSTANTIAL Read more
about threat levels >>
Contact Us
MI5's mission is to keep the country safe, both now and in the future. The organisation's values contribute to that mission:
Our singular focus on the mission, striving for real results that make the country safer.
Working as one as MI5, bringing together in common purpose the best that everyone can give, supporting colleagues and treating each other with respect, and forging close partnerships and teams with others we depend upon.
Highest standards of integrity, objectivity and sense of proportion; great skills, expertise and experience; high quality information management; strong security culture; commitment to the rule of law, ethical conduct, accountability and compliance with our own procedures.
Constantly seeking new ideas and different approaches to advance our capabilities, improve our ways of working, and overcome obstacles to our success; an embedded habit of learning and development and sharing knowledge.
Like the rest of the country, MI5 pays tribute to the service and sacrifice of the entire Second World War generation
The Thames House entrance archway lit up blue on Thursday 16 April alongside other UK landmarks to show our...
The Director General has expressed MI5's "regret and shame" for historical treatment of LGBT community