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

Your chance to give us any information you think could help with our work. (Secure page).
> More on how you can help

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

Information on the role of the Security Service, how we do our work and how it is overseen.
> More about MI5