Internet以其网络的两大功能:资源共享和数据通讯,给我们的生活、学习带来了极大的便利,同时也给了黑客们发动攻击的机会,越来越多的人遭受攻击,使得我们的电脑处于危险之中。因此,必须采取措施防御,以提高微机系统的安全性。 Internet to its two major functions of the network: resource sharing and data communications, to our life, learning has brought great convenience, but also gave hackers the opportunity to launch attacks, more and more people were attacked, making Our computer is in danger. Therefore, measures must be taken to defend to improve the security of the microcomputer system.