The current threat level in the UK - SEVERE

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.

ABOUT US

Information on the role of the Security Service, how we do our work and how it is overseen.

SECURITY ADVICE

What your business or organisation can do to protect against terrorism and other security threats.

THE THREATS

Details on the current threats to UK national security, including a summary of the threat from international terrorism.

HOW CAN YOU HELP

Your chance to give us any information you think could help with our work.

Careers at MI5

Think of any skill and the chances are we could be using it. At MI5 we are currently looking for...

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