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 ...

Jan. 14 (UPI) --Documents newly declassified by MI5, Britain's internal intelligence agency, show the late Queen Elizabeth II was not informed for almost 10 years that a member of her staff had ...

Some MI5 material relating to its involvement with a teenager who was charged with terrorism before taking her own life is being "withheld" from her inquest but is "not a cause for concern", a ...

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 ...

Blunt featured in a 2019 episode of " The Crown," played by Samuel ... Blunt are among a trove from the intelligence agency MI5 released Tuesday by Britain's National Archives.