当前计算机网络在世界各国迅速发张,应用范围越来越广泛,针对此种现象,本人对本世纪计算机网络系统安全性问题的发展方向和发生重大变化的提出一些自己的见解。 At present, computer networks are rapidly issued in various countries in the world, and their applications are more and more widely. In view of this phenomenon, I put forward some opinions on the development direction and major changes in the security of computer network systems in this century.