Cyber-resilience of Critical Cyber Infrastructures: Integrating digital twins in the electric power ecosystem

This contribution presents a model for cyber-resilience of critical cyber infrastructures (CCI) based on the implementation of a digital twin. It addresses the risks associated with the in-tegration of computational, communication and physical aspects of CCIs. We focus specifi-cally on cybersecurity in the electric power sector due both to its salience and to the poten-tial risks associated to failures in guaranteeing resilience. Informed by the literature on in-formation security management, situational awareness (SA) and common operational pic-ture (COP), we derive an overarching model to provide CCIs' actors with increased cyber sit-uational awareness, common understanding of incidents and enhanced response capacity. On the practical side, the model seeks to minimize response time and to reduce the impact of cyber-attacks on the organizations and on society as a whole. We develop a process model and validate three design propositions through a formative evaluation in the context of a digital twin implementation in the EU electrical power sector. We discuss the implications of this model for further research as well as practical applications for the electrical power sector. (c) 2021 Elsevier Ltd. All rights reserved.