计算机网络在给人们带来方便的同时,也存在许多安全隐患。网络安全问题造成的危害已经相当广泛和严重,及时采取有力的安全措拖和相关技术,才可防患于未然。文章在概述计算机网络安全面临威胁的基础上,分析了网络攻击的方式及发展趋势,并提出网络信息安全的技术保障策略及主要防范措施。 Computer network to bring convenience to people at the same time, there are many security risks. The hazards posed by cybersecurity problems have become quite widespread and serious, and vigorous security measures and related technologies can be taken timely to prevent any possible future problems. On the basis of an overview of the threats to computer network security, the article analyzes the ways and trends of network attacks and puts forward the technical support strategies and the main preventive measures for network information security.