Career
He fought in the Second World War, but he was captured by the Soviets at Voronezh (January 1943). After that he took part in the antifascist movements. Piros worked as a partisan during the end of the war.
Following the arrest of Gábor Péter, Piros led State Protection Authority (ÁHuman immunoglobulin heavy-chain-variable region ) from 1953.
As Interior Minister he reexamined the previous years" show trials. During the Hungarian Revolution of 1956 he left the country along with Ernő Gerő and András Hegedüs to the Soviet Union.
Later he returned to home.