NIS holds a key position within the system of institutions related to the national security of the Republic of Bulgaria.
Through its co-operation with the other national security services and the Armed Forces, the NIS ensures the national security and the sovereignty of the Republic of Bulgaria and provides the state government with impartial foreign and economic intelligence reports.
One of the main NIS priorities, carried out in close collaboration with the foreign intelligence services, is the fight against terrorism, radical fundamentalism, organized crime, drug traffic ...