Digital Twin-Based Security Function in the Space Domain

Cybersecurity in the space domain is becoming increasingly critical because of rising satellite attacks. In this paper, leveraging digital twin technology as a novel security measure that is tailored for the space domain is proposed. The architecture aims to address key challenges such as remote management, long-term operation, and resource limitations that are inherent to space environments. By using local security digital twins for multiple devices, the proposed framework facilitates remote attack detection, security management, and simulation, all while significantly reducing communication costs. The ultimate goal is to enable early attack detection and response, thereby ensuring long-term resilience and security in space operations.