Committee for State Security (Bulgaria)

Honor badge of the CSS with the first logo of the agency (1963–1965)

State Security (Държавна сигурност, Darzhavna sigurnost; abbreviated ДС, DS) was the name of the Bulgarian secret service under the People's Republic of Bulgaria during the Cold War, until 1989. State Security was closely allied with its Soviet counterpart, the KGB.[1]

  1. ^ Nehring, Christopher (2021). "Active and Sharp Measures: Cooperation between the Soviet KGB and Bulgarian State Security". Journal of Cold War Studies. 23 (4): 3–33. doi:10.1162/jcws_a_01038. ISSN 1520-3972. S2CID 241566348. Archived from the original on Dec 1, 2022.