State Security General Ivan Alexandrovich Serov (Russian: ???´? ??????´??????? ???ó?; 13 August 1905 – 1 July 1990) was a head of the KGB between March 1954 and December 1958, as well as head of the GRU between 1958 and 1963.
He was Deputy Commissar of the NKVD under Lavrentiy Beria, and played a major role in the political intrigues after Joseph Stalin's death.
Serov helped establish a variety of secret police forces in Central and Eastern Europe after the lowering of the Iron Curtain, and played an important role in crushing the Hungarian Revolution of 1956.Serov headed both the political intelligence agency (KGB) and the military intelligence agency (GRU), making him unique in Soviet/Russian history.
Inside the Soviet security forces, Serov was widely known for boasting to his colleagues that he could "break every bone in a man's body without killing him".