计算机网络安全研究摘要随着我国经济的不断发展，我国互联网的技术也在不断的更新，其中受到外来黑客攻击的事件也是屡见不鲜，严重影响了正常网络的使用，造成了沉重的经济损失。正因为现有计算机网络的先天缺陷，极易被别有用心的攻击者利用，造成目前黑客攻击、病毒入侵的发生。与此同时，随着计算机网络防范新技术、新方法的发展及投入使用，使正常的网络系统稳定性和安全性得到极大的保证。除此之外，计算机网络使用者其自身的安全意识，也会直接影响到其使用互联网的安全。关键词：网络安全 防火墙 计算机病毒AbstractWith the rapid development of Internet technology in recent years, there have been many attacks on computer network, which have seriously affected the use of normal network and caused heavy economic losses. Because of the congenital defects of the existing computer network, it is easy to be exploited by attackers with ulterior motives, resulting in the current hacker attack, virus invasion. At the same time, with the development and application of new technology and method, the stability and security of normal network system are guaranteed greatly.In addition, the user's security awareness is also an important aspect of computer network security. Key word: Network security Firewall Computer virus1目录引言...........................................................................................................................1一 计算机网络安全的现状......................................................................................1二 计算机网络的主要隐患......................................................................................2（一）环境灾害.................................................................................................2（二）黑客的威胁和攻击.................................................................................2（三）计算机病毒.............................................................................................3（四）垃圾邮件和...
