Confessions of double agents and tips for new spies have been released as part of a tranche of recently-declassified documents from MI5. The documents are part of a new exhibition on display at the ...

Anthony Blunt, who worked at Buckingham Palace as Surveyor of the Queen’s Pictures, was secretly a Soviet spy during WWII.

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

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

The manual gives instructions on preferred appearances, disguises and how to follow targets – but warns against fake ...

The documents, on display in the National Archives in Kew, West London, suggest the organisation was keen to dismiss any ...

In 1970, MI5 learned that Bogarde had been named as gay to the Russians by a man who himself had fallen victim to a KGB sting during a visit to Moscow in the late 1950s. Separately, a KGB defector ...

The UK's terrorist threat level is currently classified as "substantial," meaning an attack is considered likely.

Keir Starmer says that terrorism has 'changed' and that the problem must be urgently addressed. But the system is fluid when ...

FILM star Dirk Bogarde was investigated by spies at MI5 as they thought he could be the target of a gay “entrapment” attempt by the Russians, newly-declassified files show. Documents released to ...

British counter-terrorism officers are on high alert amid concerns of a copycat attack in the wake of the New Orleans atrocity. Police and MI5 fear Islamic State supporters could be triggered into ...

Newly declassified British documents show that Queen Elizabeth II wasn’t ... The files about royal art historian Anthony Blunt are among a trove from the intelligence agency MI5 released Tuesday by ...