With the continuous progress of computer network technology, computer network has been closely related to people's daily life. Internet with a great convenience, can help people get more information, on the basis of which, numerous shopping platform, chat platform and game platform constantly grew up in dealing with people. It can be said that the existence of the computer network is an important part of modern society, at the same time ,the computer network to bring convenience to people there

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... being some hazards that the main is the issue of information security. Due to the openness of the Internet, the user's personal information is easy to leak out which becomes a means of criminals to reap benefits, threatening the normal life of the people. This article analyzes the influence factors of computer network information security, and gives some preventive measures to promote the healthy development of Internet security, and protect the privacy of users. Introduction Computer network plays an important role in all walks of life, and is also one of the important manifestations of globalization, through which we can achieve long-distance communication and business operations, at the same time relying on the development of computer networks, the various platforms affecting people's normal life. Network information security has been a problem in the development of computer network, because of the characteristics of the network itself and the popularity of the computer network, the importance of network information security being enhanced constantly, For individuals, network information containing a lot of personal factors, for the enterprise, containing important information of the enterprise, and for the country, containing a significant state secrets. So network information security is a problem that must be paid great attention to in the process of computer network development. Analyzing from a narrow point of view, the so-called computer network security is to protect that the resources of network information system data information are not illegal to be obtained, change, leakage, to ensure information security so to maintain the stability of the computer system. Computer network information is an important part of the network, information security threatened, it means that the entire network system has been destroyed, affecting the normal and stable operation of the entire network. Analyzing from a general point of view, computer network information security includes many features, reliability, authenticity and integrity, availability and confidentiality, which can be used as a part of computer network security, below for specific analysis Reliability. Reliability refers to the reliability of the entire computer network, to ensure users can use normally and can be assured of transmission the individual or enterprise information to the network which is the basis of computer network to be able to run stably, to make clear the lack of user trust and reliance on the computer network whose application value will be greatly affected, thus affecting the normal development trend Authenticity and Integrity. The authenticity and integrity of the network information refers to the information that exists in the network is not modified and deleted by others illegally, which