Welcome to the Norwegian National Security Authority
The Norwegian National Security Authority (NSM) is a cross-sectoral professional and supervisory authority within the protective security services in Norway. We administer the Act of 20 March 1998 relating to Protective Security Services.
The purpose of protective security is to counter threats to the independence and security of the realm and other vital national security interests, primarily espionage, sabotage or acts of terrorism. Protective security measures shall not be more intrusive than strictly necessary, and shall serve to promote a robust and safe society.