MI5 - Security Service

MI5 The Security Service

Report a threat

To report an imminent threat call 999 or ring the Anti-Terrorist Hotline on 0800 789 321

To report non-urgent suspicions:
Contact Us here

IF YOU SUSPECT IT, REPORT IT


Current UK threat level

SEVERE

Read more about threat levels >>

The Security Service (MI5) is responsible for protecting the United Kingdom against threats to national security. This website provides information about the Security Service, the threats it counters, links to sources of security advice and details of careers with the Service.

MI5 among top LGB employers for another year

14 January 2015

MI5 is ranked 7th in the annual Stonewall Workplace Equality Index.

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