MI5 (Military Intelligence, Section 5), officially the Security Service, is the United Kingdom's domestic counter-intelligence and security agency and...

Security Service is the head of the Security Service (commonly known as MI5), the United Kingdom's internal counter-intelligence and security agency...

Country and Slough House. Slough House is an administrative purgatory for MI5 service rejects who have seriously failed a task but have not been sacked...

which MI5 investigated and found to be false[citation needed]), to Wilson being the victim of treasonous plots by conservative-leaning elements in MI5 and...

British intelligence officer who has been serving as the Director General of MI5 since 2020. McCallum was born in Glasgow, Scotland, in 1974. He attended...

Look up MI5 in Wiktionary, the free dictionary. MI-5 may refer to: MI5, the domestic security service of the United Kingdom MI-5, a television series broadcast...

author and former Director General of MI5, a position she held from 1992 to 1996. She was the first female DG of MI5, and the first DG whose name was publicised...

CBE (9 August 1916 – 26 April 1995) was a principal scientific officer for MI5, the British counter-intelligence agency. His book Spycatcher, written with...

The MI5(g), or the MI5 G section, was a branch of MI5 that was formed during World War I to address the wartime espionage operation by the Indian revolutionary...

a British intelligence officer who served with MI5 from 1938 to 1965. He was Director General of MI5 from 1956 to 1965. Some commentators, including...