A resilience Component for a Digital Twin

Abstract. Industry 4.0 has popularized Cyber-Physical Systems (CPSs), engineered systems integrating physical components with computerized controls for process management. Despite efforts by academia and industry to address CPSs challenges, security remains a key concern. This involves identifying vulnerabilities, weaknesses, and threats. The primary objectives of security are the evaluation of CPSs’ security status, uncovering flaws, and suggesting risk mitigation. Nevertheless, besides lists of several CPSs security improvement techniques and methodologies for detecting CPSs security issues, little emphasis is paid to their resolution. This paper analyzes existing techniques to enhance resilience in CPSs, encompassing both design and operational phases to mitigate identified risks. Additionally, we introduce the integration of a resilience component into a Digital Twin (DT) framework. This component utilizes the capabilities of the DT to oversee resilience mechanisms within the system, monitor system activity, and respond effectively to security events.

Keywords: Cyber Physical Systems · Resilience · Digital Twin · Security · Mitigation.