The Security Service, commonly known as MI5 (Military Intelligence, Section 5), [2] is the United Kingdom's domestic counter-intelligence and security agency and is part of its intelligence …

Discover how MI5 works to protect against threats to national security through intelligence gathering techniques, partnerships and legislation. Find out how you can play your part in …

Dec 10, 2025 · MI5, intelligence agency charged with internal security and domestic counterintelligence activities of the United Kingdom. It is authorized to investigate any person …

The Security Service, MI5, is responsible for protecting the UK against threats to national security. MI5 works with the Home Office .

Dec 23, 2025 · The Security Service, universally known as MI5, stands as Britain's domestic counterintelligence and security agency, operating in the shadows to protect - British History, …

Dec 20, 2025 · Concerns are raised over whether the MI5 can be trusted to provide full evidence to courts and investigations following the findings of Operation Kenova. The final report of …

A 110-year-old lemon that played a key role in espionage history is one of the star attractions of a London exhibition drawn from the files of British spy agency MI5.

MI5 is directed by the Joint Intelligence Committee (JIC), and the service is bound by the Security Service Act 1989. The service is directed to protect British parliamentary democracy and …

Apr 4, 2025 · Headquartered in Thames House, MI5, formally known as the Security Service, is a linchpin of the UK’s intelligence community and is globally recognized for its vital role in …

Apr 1, 2025 · Britain's domestic spy agency MI5 issued a rare public warning to members of parliament on Monday that they are being targeted by spies from China, Russia and Iran in an …