Ministry of Industry and Information Technology (MIIT)-- the Ministry of Industry and Information Technology recently launched a special campaign to improve the operational security capability of 5G networks. Based on the new situation and new management requirements of 5G network operation and development, the special action focuses on three main tasks: one is to establish three safety risk lists for network operation, including extreme accident scenarios, key network equipment and high-risk operation posts. to achieve a clear base of safety risks, strict management and control, and resolutely avoid extreme accidents. The second is to strengthen the four major network operation security support capabilities, such as network protection, risk perception, accident prevention and comprehensive disposal, and build a multi-dimensional network operation security capability system to ensure the safe and stable operation of 5G network in all directions; the third is to build a solid foundation for the security of network operation, such as system, personnel, and culture, to make up for the shortcomings of the system, enhance personnel skills, and deepen security concepts, so as to form a strong joint force.