随着商业发展的需要,工业控制系统(ICS)与外部网络的联接日益紧密,工业控制网络已不再相对独立和安全。ICS的资源弱点和漏洞正面临着异步、持久性攻击,且传统的安全策略已无法应对目前的安全风险。为有效保护ICS信息安全,保证商业的顺利发展,本文提出采取深度防御策略,以降低新形势带来的安全风险。 With the need of commercial development, the connection between Industrial Control System (ICS) and the external network is getting closer and closer, and the industrial control network is no longer relatively independent and safe. ICS resource vulnerabilities and vulnerabilities are facing asynchronous, persistent attacks, and the traditional security strategy has been unable to cope with the current security risks. In order to effectively protect ICS information security and ensure the smooth development of commerce, this paper proposes to adopt a deep defense strategy to reduce the security risks brought by the new situation.