Model-based cybersecurity for control systems: Modeling, design and control

Control systems of critical infrastructures are not able to avoid dealing with some security incidents caused by cyberattacks, such as malware infection and information. It is insufficient to apply existing information security countermeasures to control systems and then we need security concept specific to control systems because there exists gaps between information and control system security policies. Also, the existing studies tend to focus on the preliminary countermeasures of cyberattacks, but it is necessary to consider incident responses of control systems during the cyberattacks in terms of control system security strategy “Defense-in-Depth”. Motivated by this, this paper focuses on model-based techniques which are familiar with control systems. Further, we present a fallback control method as an incident response of control systems which is a minimal operation devoting control systems to facilities protection and minimizes the damage caused by cyberattack.