Recently, the 2022 national cyber security publicity Week kicked off, and a series of innovative cyber security publicity activities were held throughout the country, once again making the topic of cyber security the focus of the whole society. Leak tracing technology, big data anti fraud system, quantum encryption technology... At the 2022 National Cybersecurity publicity week cybersecurity Expo, many new technologies and applications of cybersecurity appeared, and various immersive popular science interactions also dazzled the audience. At present, the number of Internet users in China has reached 1.051 billion, and the Internet penetration rate has reached 74.4%. The Internet has been fully integrated into all aspects of social life and has become an indispensable infrastructure to support the normal operation of society. The basic function of the Internet in the whole social life is constantly enhanced, which determines the significance of network security. Once the network security is destroyed, even if the security function in a certain local area is lost, social life will be directly affected. Network security means that the Internet, cyberspace and network life are free from attacks, damages, dangers, accidents and other interference or threats, and can maintain their stable existence and normal operation under effective prevention and protection. Building a solid barrier to network security is a necessary prerequisite for building a beautiful Internet home and enjoying a stable, orderly, civilized and good internet life. In recent years, the successful practice in various fields of China's network security work has profoundly revealed the three "passwords" of network security: strengthening the awareness of network security, improving the network security system and implementing the responsibility of network security. The formation and strengthening of network security awareness can guide people to form good behavior habits that meet the needs of network security, which can be said to be the cornerstone of ensuring information network security. From the moment that human society marches into the network era, various risk factors and threat forces are constantly challenging network security and testing human wisdom in dealing with it. Security awareness, security thinking and necessary security skills and qualities should become the necessary qualities of all actors in the information network era. The top-level design and strategic planning of network security at the national level, the management and operation of companies, enterprises and administrative departments, and the unfolding of personal network life can not be separated from the guidance of network security awareness, which is the important significance of network security publicity week. The construction and improvement of the network security system provides system norms and mechanism guarantees for the normal operation of the network social life. The problem of network security system has comprehensive characteristics, including many aspects and levels. In addition to technical factors, it also includes economic, political, military, cultural, legal, ethical and other social and cultural factors. A complete and effective network security system can effectively maintain the security of network facilities and maintain the continuous supply of network public services. At the same time, it can also effectively maintain the security of network information, ensure the security of information and data stored and transmitted in cyberspace, and prevent them from being damaged or stolen. Implementing the responsibility of network security is the practical base point for dealing with network security risks and challenges. As an important responsibility subject for maintaining network security, government departments effectively undertake the responsibility of implementing network security supervision and providing network public security services; Network enterprises and platform organizations effectively undertake the security of network basic operation and network service operation