Committee for State Security

The Committee for State Security (Bulgarian:Комитет за държавна сигурност, Komitet za dǎržavna sigurnost; abbreviated КДС, CSS), popularly known as State Security (Държавна сигурност, Darzhavna sigurnost; abbrievated ДС) was the name of the Bulgarian secret service during the Communist rule of Bulgaria and the Cold War (until 1989).