Some of the newly released documents will feature in the forthcoming exhibition at the National Archives. The Director General of MI5, Sir Ken McCallum, said: "While much of our work must remain ...

Newly released MI5 files from the National Archives reveal that British intelligence monitored potential connections between ...

Historian and exhibition curator Mark Dunton speaks about special files that will form part of a special exhibition at the National Archives titled 'MI5: Official Secrets', featuring case files ...

A World War II-era guide to tailing a target, and files on notorious double agents such as Kim Philby, feature in MI5: ...

Avoid facial disguises, carry loose change and be ready to make split-second decisions: just some of the advice Britain’s ...

Some of the documents released today will feature in a forthcoming exhibition at the National Archives. The Director General of MI5, Sir Ken McCallum, said: "While much of our work must remain secret, ...

A closer look at recently declassified MI5 files on the intelligence failure surrounding the five "Cambrdige spies" ...

That was the advice issued to rookie MI5 “watchers” whose job it was ... focusing on the work of M15 due to open at the National Archives in Kew, west London, in the spring.

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by Britain’s National Archives. They shed new light on a spy ring linked to ...

Some of the newly released documents will feature in an exhibition, entitled “MI5: Official Secrets,” opening at the National Archives in London later this year. Two of the Cambridge spies ...

The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by Britain's National Archives. They shed new light on a spy ring linked to ...