Boris Rybkin

Boris Arkadyevich Rybkin (Russian: Бори́с Арка́дьевич Ры́бкин) – born Boruch Aronovich Rivkin Russian: Борух Аронович Рывкин; 19 June 1899 – 27 November 1947) was a Soviet diplomat and a secret agent of NKVD. He worked as a junior diplomatic official named Boris Yartsev in the embassy of the Soviet Union in Helsinki.