Official Secrets' will feature original case files, photographs and papers, alongside authentic espionage equipment ...

The MI5 alert in question also alleged that Lee ... nor was it illegal for a British citizen or foreign national working in the UK to be affiliated with the Chinese Communist Party.

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

In one of the newly released files, an MI5 officer notes that Blunt said he ... bringing with him details of moles inside British intelligence – including Philby himself. As a result of ...

It put an end to the British government's willingness to engage ... defying his boss John Deverell, the head of MI5 in Northern Ireland who had ordered him not to go. Senior republicans Martin ...

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

Documents from the British secret service MI5 reveal that Anthony Blunt, an art historian and supervisor of the official Royal Art Collection, was actually a member of the notorious spy ...

In one of the newly released files, an MI5 officer notes that Blunt said he felt “profound ... bringing with him details of moles inside British intelligence — including Philby himself. As a result of ...

For the past few years, Rosalind Eleazar has been a standout in the supporting role of British MI5 agent Louisa Guy in Apple TV+’s espionage drama “Slow Horses.” Now Eleazar is proving she ...

Around the same time, a KGB defector told spooks that a young British actor had been targeted in a possible recruitment attempt in the Russian capital. MI5 thought this man might have been Bogarde ...