A Hungarian suspected spy used a marriage to a peer to bypass security and embed herself in the English establishment, a betrayal that kept her in secret custody under a wartime regulation.
By Harlan Pryce ·
A Soviet cipher clerk handed over the keys to the Kremlin's North American operation in 1945, but the full list of compromised officials remains hidden in London.
By Constance Bell ·
The Security Service files on Hildegarde Nunn May reveal a woman with four identities and a strategic marriage to an atom spy, hidden behind the facade of a local clinic
By Constance Bell ·
A Soviet agent used five aliases to move spies through the world's ports for decades; the British kept the record of his movements in a file that identifies the holes in Western security.
By Constance Bell ·
A physicist gave the Soviet Union the secrets of the bomb and stayed silent about his handlers, yet he found the British Security Service acting as his employment agent upon release.
By Harlan Pryce ·
He handed over "detailed and damaging" nuclear data for years, yet his 14-year sentence rested entirely on a confession elicited by the Security Service after a US source spoke.
By Eleanor Voss ·
He spent years in the heart of the Manhattan Project betraying allies to the KGB and GRU; his 1950 conviction relied on a confession because investigators found no evidence.
By Constance Bell ·
A British citizen lost his nationality after providing damaging nuclear data to the KGB and GRU, though the investigation that caught him produced no physical evidence of espionage.
By Roy Castellano ·
He volunteered for the Russians in 1942 and passed damaging secrets until 1949, though the British investigation found no evidence of his espionage.
By Harlan Pryce ·
For seven years, a high-ranking physicist fed the KGB and GRU the blueprints of the atom bomb, leaving the West blind to the speed of the Soviet nuclear program.
By Constance Bell ·
He volunteered his services to Moscow in 1942 and passed damaging data for seven years, yet the investigation that led to his arrest produced no evidence of his espionage.
By Roy Castellano ·
A physicist volunteered his services to the KGB and GRU, stealing the blueprints of the first atomic bomb while his handlers remained hidden for nearly a decade.
By Constance Bell ·
A physicist who volunteered to the KGB spent 14 years in prison after a sensitive US source flagged his betrayal, though the British investigation found no physical proof.
By Vera Kessler ·
One Soviet officer’s flight from the embassy in Ottawa ended the illusion of the wartime alliance and exposed a network of moles hunting Western military secrets.
By Harlan Pryce ·
Seven years of damaging secrets passed to the KGB and GRU ended in a 14-year sentence and the total loss of British nationality for a man trusted with the bomb.
By Harlan Pryce ·
The public and the press were deceived by an Indian diplomat who used his journalism post as cover for industrial intelligence and a lifelong career as a GRU agent.
By Constance Bell ·