2. KGB (Soviet Union)
The KGB, or Committee for State Security, was the Soviet Union’s principal security agency from 1954 to 1991. It was responsible for internal security, foreign intelligence, counterintelligence, and secret police functions. Operating under the Communist Party’s control, the KGB conducted extensive surveillance of Soviet citizens, suppressed political dissent, and engaged in covert operations abroad. Its pervasive influence and methods have left a lasting impact on Russia’s security apparatus.



