To report an imminent threat call 999 or ring the Anti-Terrorist Hotline on 0800 789 321
Current UK threat level: SEVERE Read more about threat levels >>

MI5 – The Security Service

MI5's mission is to keep the country safe. For more than a century we have worked to protect our people from danger whether it be from terrorism or damaging espionage by hostile states.

Careers at MI5

A career at MI5 is like no other. Not only is it rewarding and unique, but the variety is unlike anywhere else. Our employees have significant autonomy to manage their own careers and the opportunity to change jobs or business areas every two to three years. It wouldn’t be unusual for someone to work in counter-terrorism, recruitment, counter-espionage and corporate communications within their first few roles. This variety together with our supportive and flexible working environment means most people who join MI5 stay for a substantial part of their careers.

Visit Careers

MI5 Insights

Fact or Fiction?
Terrorism is the biggest current threat to national security.

True False

Latest News

view ALL News

GCHQ Centenary Plaque Unveiling

Andrew Parker, Director General of MI5, was present at the unveiling by HM The Queen of a plaque commemorating the GCHQ...

Read Full Article ›

Celebrating Vote 100

MI5 is celebrating the centenary of women’s right to vote with a number of events. In particular, our gender network is...

Read Full Article ›