Chapter 11

Safety assurance under stealthy cyber attacks

Abstract

The security of Cyber-Physical Systems (CPSs) against cyber attacks is an important yet challenging problem. Since most cyber attacks happen in erratic ways, it is difficult to describe them systematically. In this chapter instead of identifying a specific cyber attack model, we focus on analyzing the system's response during cyber attacks. Deception attacks (or false data injection attacks), which are performed by tampering with system components or data, are not of particular concern if they can be easily detected by the system's monitoring system. However, intelligent cyber attackers can avoid being detected by the monitoring system by carefully designing their cyber attacks. ...

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