Description: (British Civil Servant Who Spied for the Soviets)
William John Christopher Vassall was a British civil servant who engaged in espionage for the Soviet Union from 1954 to 1962. He provided significant information on naval technology during this period, leading to his arrest and imprisonment for eighteen years. Vassall was released after serving ten years. His espionage scandal caused embarrassment to the Macmillan government, though it was overshadowed by the more sensational Profumo affair.