Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not ...

Newly declassified British documents show that Queen Elizabeth II wasn’t told details of her long-time art adviser's double ...

The newly-declassified documents include details about some of the UK's most notorious spies.

Despite advances in electronic surveillance, security service MI5 still relies on human ‘watchers’. Government documents ...

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

The late Queen was not formally told of the full scale of Cambridge spy Anthony Blunt’s treachery for almost a decade, according to newly published MI5 documents. A distinguished art historian ...

Newly released MI5 files reveal that, for nearly 10 years, the late monarch didn’t know that royal household member Anthony Blunt was actually a Soviet double agent. According to the BBC ...

MI5's official historian Christopher Andrew noted that the queen had previously received "general terms" information about Blunt. Later, Prime Minister Margaret Thatcher publicly revealed Blunt ...