The National Development and Reform Commission and other three departments issued a notice on the "Guidelines for the Construction of National Data Infrastructure." Diversified activities such as data collection, aggregation, transmission, processing, circulation, utilization, and Operation involve multiple parties and various links, requiring comprehensive and dynamic protection of data in an open environment. The national data infrastructure needs to build a standardized, multi-level, and all-encompassing security protection framework, promoting the transition of security protection from static to dynamic, from boundary security to intrinsic safety, and from closed environment protection to open environment protection, forming a dynamic security protection capability that spans all links of the data lifecycle, systematically ensuring the security of networks, computing power, data, and applications related to data infrastructure.