Russian Federal Security Service (FSB)

The Russian Federal Security Service (FSB) is Russia’s main domestic intelligence and security agency, responsible for national security, counterterrorism, and surveillance within the country. It evolved from the Soviet KGB and handles intelligence gathering, border security, and combating organized crime and espionage. The FSB operates under the authority of the Russian government and plays a key role in maintaining internal stability, protecting state secrets, and responding to threats against Russia’s political and economic stability. Its activities are often classified, and it works closely with other government agencies to ensure national security.