According to statistics, foreign brands occupy more than 95% of the market share of high-end machine tool control systems in China. As the key equipment of production and processing enterprises, CNC machine tools are facing various industrial virus and cyber attack risks. Improper protection against external attacks can result in the danger of downtime on CNC machine tools and even the entire production line.

Recently, the 706 Institute of the Second Institute of China Aerospace Science and Industry Corporation successfully developed China's first information security product for the protection of CNC machining: "HT706-CNCP CNC system terminal information security protection equipment" and "HT706-CISP border security dedicated gateway" .

The CNC machining information security solution can be used to construct security lines from the outside to the inside, from the network to the CNC machine tools, including network protection and data security in the operation of CNC machine tools. Through two aspects of risk analysis, the protection requirements for NC machining information security are given and technical measures are given.

Statistics show that the “Stokes Network” virus incident that occurred in 2010 was a wake-up call to the security of our industrial control system. Safeguarding the industrial security of CNC machining and manufacturing has become a major issue that needs to be resolved.

High-end CNC machine tools are related to industrial safety and national security. There are a large number of high-grade machine tool system log files, which contain extremely rich information in machine tool processing, and can reflect various technical information of important products produced by this type of machine tools. Western developed countries not only value their lucrative profits, but also classify them as strategic materials and conduct technical blockades. The numerical control processing protection system can break through the bottleneck of informationization and realize secure interconnection between the DNC network and the office network, which greatly facilitates the improvement of the processing efficiency of the manufacturing enterprises.