Orbital Escalation: Modeling Satellite Ransomware Attacks Using Game Theory

Ransomware has yet to reach orbit, but the conditions for such an attack already exist. This paper presents the first game-theoretic framework for modeling ransomware against satellites: the orbital escalation game. In this model, the attacker escalates ransom demands across orbital passes, while the defender chooses their best strategy, e.g., attempt a restore procedure. Using dynamic programming, we solve the defender's optimal strategy and the attacker's expected payoff under real orbital constraints. Additionally, we provide a GPS III satellite case study that demonstrates how our orbital escalation game can be applied in the context of a fictional but feasible ransomware attack to derive the best strategies at every step. In conclusion, this foundational model offers satellite owners, policy makers and researchers, a formal framework to better prepare their responses when a spacecraft is held for ransom.