How Cambridge Students Became Stalin's Most Valuable Spies — 17 Years Inside MI6 | Cold War

In this video, you'll discover how five Cambridge University graduates were secretly recruited in 1934 and went on to execute one of the most devastating intelligence operations in Cold War history. While working inside British MI6 and Foreign Office, these seemingly loyal officials were living double lives that would eventually shake Western intelligence to its core. One of them rose to become head of MI6's Soviet counter-intelligence department - the very position meant to catch Soviet spies. For 17 years they operated undetected, until a single decryption project threatened to expose everything. What followed was a dramatic escape that became an international scandal.

In this video:

How Soviet intelligence identified and recruited five Cambridge students in 1934

How one spy reached the highest levels of MI6 while working for Moscow

What secrets were passed to Stalin and how many operations were compromised

How American code-breakers accidentally discovered the network through old messages

How the dramatic 1951 defection unfolded and who escaped to Soviet Union

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