Threat Information

Understanding the threats facing your business or organisation will ensure protective security measures are proportionate, effective and responsive.

Last Updated: 08 June 2023

The UK faces a range of national security threats from terrorism, espionage and state threats. Understanding and assessing the threats facing your business or organisation will ensure protective security measures are proportionate, effective and responsive.

Information on the current threat landscape is provided by MI5. See the links below for more information on the current threats to the UK's national security.

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

If you know something about a threat to national security such as terrorism or espionage, contact MI5 online via their website or call:

  • Freephone 0800 111 4645
  • 020 7930 9000 (standard call rates apply)
  • +44 20 7930 9000 (international calls only)

Counter-Terrorism

The Security Services have countered terrorist threats to UK interests, both at home and overseas, since the 1960s and the threat has developed significantly since then.

Terrorism threats to the UK cover International terrorism, Northern Ireland-related terrorism (NIRT), Right Wing terrorism (RWT) and Left, Anarchist and Single-Issue terrorism (LASIT).

MI5's Counter-terrorism page

Explosion

Counter-Espionage

The threat of espionage (spying) did not end with the collapse of Soviet communism in the early 1990s. Espionage against UK interests still continues and is potentially very damaging.

Filing Cabinets

Cyber

The National Cyber Security Centre (NCSC) provides advice to businesses, other organisations and the public about cyber security. Other useful sources of information for individuals and businesses include the Get Safe Online website.

MI5's Cyber page

back of head looking at screen

Counter-Proliferation

The proliferation of weapons of mass destruction (WMD) poses a potential threat to the UK's security. A number of countries continue to develop WMD programmes which give cause for concern.

MI5's Counter-Proliferation page

Radioactive tape
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