 Nyora kupfuurira kweiyi ndima - Muna 1953 pashure porufu rwaStalin, Deriabin akaiswa muVienna saChief weSoviet Counterintelligence pamwe nemukuru weCommunist Party wechikamu chose cheAustria-German. Muna 1954, akapandukira United States kuburikidza nechitima chekutakura zvinhu kuburikidza nenharaunda yeSoviet iri pedyo neVienna, uye aive mukuru wepamusoro weSoviet intelligence kuti azviite panguva iyoyo. Mukutsiva, Military Collegium yeDare Repamusorosoro reUSSR yakamutongera rufu asi asipo. Akapupura pamberi peSeneti yeU.S. neHUAC muna 1959, uye akanyora bhuku pamusoro penguva yake muKGB. 