计算机网络在给广大网民带来便捷和方便的同时,也在一定程度上让人们的生活开始有了全新的变化。网络的普及和网络世界的到来,让人们的信息和信息安全成为了主流的网络话题。随着大数据时代的降临,个人的信息安全和网络安全逐步引起人们的重视,并且已经开始影响到了人们的正常生活。本文通过解读计算机网络的原理,分析其存在安全问题的原因,并针对计算机网络的安全问题进行解析,探讨如何进行计算机网络安全问题的防范。 Computer network in the majority of Internet users to bring convenience and convenience, but also to some extent so that people’s lives began to have a whole new change. The popularity of the Internet and the advent of the online world have made people’s information and information security a mainstream online topic. With the advent of the big data era, personal information security and cyber security gradually attract people’s attention and have begun to affect people’s normal life. By analyzing the principle of computer networks, this paper analyzes the reasons for the existence of security problems, and analyzes the security problems of computer networks to explore how to prevent computer network security problems.