“Energy networks are currently affected by strong technological changes due to the increasing decentralization and digitalization. Due to the progressive dependency of our everyday lives on ICT technologies, the electricity grid gains importance as the critical infrastructure of our society. The energy system itself is also experiencing increasing connection with the communication infrastructure. At the same time, interconnected systems are subjected to a growing threat through increasingly professionalized cyber-attacks. A holistic consideration of the future energy system must take place as an overall architecture and take cybersecurity as an integral design parameter into account. Only in this way, a secure, resilient energy system can be ensured for the future.”