Urzad Bezpieczenstwa

The Urzad Bezpieczenstwa (State Security Office), or UB was the security service of the communist government of Poland. It was founded in 1944 and was renamed in 1956 to the Sluzba Bezpieczenstwa (State Security Service).

The primary duties of the UB/SB were internal security, the recruitment of informants and aggressive covert actions against dissidents.

The slang term for secret policemen in Poland, Ubeks, is derived from the initials of the UB.