为保障信息化系统的安全和针对各种网络安全威胁,人们开发应用了防火墙、IPS、VPN、杀毒软件等多种软硬件技术,但各种网络安全威胁仍未得到有效解决。为解决这方面的网络安全问题,有安全专家认为安全应该回归终端,以终端安全为核心来解决信息系统的安全问题。 In order to ensure the security of information system and a variety of network security threats, people have developed and applied various software and hardware technologies such as firewall, IPS, VPN, anti-virus software, etc. However, various network security threats have not been effectively solved. In order to solve this network security problem, some security experts think that the security should return to the terminal and take the terminal security as the core to solve the security problem of the information system.