以计算机病毒、网络攻击等技术为首的信息化手段成为攻击网络信息系统的重要战略武器,建立起从网络整体的安全性、保密性、完整性,到数据可用性、可管控性和唯一性的全方位的网络安全防御体系成为必然发展趋势。从安全预警与安全防护两个方面,结合管理、策略和技术三个层面建立细粒度的网络安全建模,形成网络安全态势预警,打造全方位的网络安全感知防御系统,从而达到网络应用环境一体化的安全防御。 Information technology such as computer viruses and cyberattacks has become an important strategic weapon for attacking network information systems and has established the entire network security, confidentiality, integrity, data availability, manageability and uniqueness Azimuthal network security defense system has become an inevitable trend. From the aspects of security early warning and security protection, we establish fine-grained network security modeling from three aspects of management, strategy and technology to form early warning of network security situation and build a comprehensive network security awareness defense system so as to achieve network application environment integration Security defensive