Vulnerability of CPS inference to DoS attacks

We study distributed inference of Cyber Physical Systems (CPS) subject to Denial of Service (DoS). For the purpose of inference, we assume the CPS as a physical-layer (dynamical system) monitored by a cyber-layer (multiagent network). Under DoS, an adversary may disrupt the sensor network monitoring the system either at the underlying communication or at sensors. We investigate countermeasures and CPS resiliency to such failures. We show that the rank-deficiency of the physical system increases the prevalence of hubs in the cyber-layer, and consequently, the vulnerability to the adversary attacks. We provide a power system monitoring example to illustrate our approach.