Design of strictly stealthy attacks for nonlinear multiagent systems under distributed attack detection mechanism

This paper focuses on the problem of strictly stealthy attacks design against nonlinear multi -agent systems (MASs) with directed communication topology. First, a distributed attack detection mechanism with powerful detection capability is used to detect system anomalies and measure the concealment of attacks. Then, under different attack scenarios, the necessary and sufficient design conditions of strictly stealthy attacks which can bypass the distributed detection mechanism and lead to MASs insecurity are derived. Moreover, by combining the basic idea of blocking attacks and false data injection attacks (FDIAs), a strictly bounded stealthy attack scheme is proposed, which considers the energy constraint of attackers. Finally, simulation examples are carried out to show the effectiveness and superiority of the developed stealthy attack strategies.