在信息化时代背景下,网络早已成了人类活动的一部分,但由此引发的网络安全讨论也越来越激烈。目前,常见的网络安全问题包括计算机病毒、网络漏洞及黑客攻击等,这严重威胁到了计算机网络用户的切身利益。据此,本文笔者结合相关知识,浅析计算机网络安全及其防范措施。 In the context of the information age, the Internet has long been a part of human activities, but the cyber-security discussions that have been triggered by it have become increasingly fierce. At present, common network security problems include computer viruses, network vulnerabilities and hacker attacks, which seriously threaten the vital interests of computer network users. Accordingly, the author of this text combines relevant knowledge, analyze the computer network security and its precautionary measures.