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CASE #PD0HQK · 2 entities · 1 connections
The Cambridge Five
Five British men recruited at Cambridge University spent decades passing top-secret intelligence to the Soviet Union from inside Britain's own spy agencies — and one of them ran British counter-intelligence itself while secretly working for the enemy.
The Cambridge Five were a ring of British spies recruited at Cambridge University in the 1930s who provided classified information to the Soviet Union for decades, penetrating deep into British intelligence, the foreign office, and MI5 and MI6 themselves. Their exposure across the 1950s-60s remains one of the most damaging confirmed espionage cases in British history.
✓documented
Quick facts
- →The five identified members were Kim Philby, Guy Burgess, Donald Maclean, Anthony Blunt, and John Cairncross, all recruited around Cambridge University in the 1930s.
- →Kim Philby rose to a senior position in MI6, at one point serving as a liaison officer coordinating with the CIA, while secretly passing intelligence to Moscow the entire time.
- →Anthony Blunt was a respected art historian and surveyor of the Queen's pictures, publicly exposed as a spy only in 1979, decades after his recruitment.
- →Burgess and Maclean defected to the Soviet Union in 1951 after being tipped off about an impending investigation; Philby defected in 1963 after also being confronted with mounting evidence.
Entities on file
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Kim Philby (person)
Senior British MI6 officer and the most damaging member of the Cambridge Five spy ring; defected to Moscow in 1963.
→ was recruited alongside → Anthony Blunt✓documented
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Anthony Blunt (person)
Art historian and Cambridge Five member; his role as a Soviet spy wasn't publicly confirmed until 1979.
No outgoing connections on file.