Skip to Main Content

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

Introduction

“MI5 investigates threats to national security through the gathering of secret intelligence and by working closely with other organisations and government departments. We do this within a strict framework of legislation and oversight to ensure our investigative powers are only used where it is necessary and proportionate to do so.”

Fact or Fiction?
MI5 has a secret training facility under Baker Street tube station.

True False

Latest News

view ALL News

Director General Ken McCallum makes first public address

MI5 Director General Ken McCallum made his first public address on 14 October where he laid out his top priorities.

Read Full Article ›

MI5 marks Black History Month 2020

Throughout October, MI5 will again be marking Black History Month with a series of internal events.

Read Full Article ›