Optimizing the resilience of interdependent infrastructure systems against intentional attacks

This paper develops a defender-attacker-defender (DAD) model for the resilience optimization of interdependent critical infrastructures (CIs) against intentional at-tacks. In the outer level, the system defender identifies the components to be hardened in order to reduce the damage associated with the worst case attack. In the middle level, the attacker disrupts the system to inflict maximum damage. In the inner level, the defender responds to the attack to minimize the consequence of the attack by optimal operation of the system. A recently developed decomposition-based two-layer cutting plane algorithm is adopted to solve the proposed model. A case of interdependent power and water systems is presented to show the proposed model.