Abstract
Industrial Control Systems (ICSs) are widely deployed in critical infrastructures, such as electric power, water filtration and distribution. Programmable Logic Controllers (PLCs) work as the core components of an ICS. The offensive security technology of PLCs has attracted the popular interests of both attackers and researchers. In this paper, we firstly abstract a 4-layers model of PLC’s implementation, and then summarize and classify attacks against PLCs into 5 types. Further, we point out the features and trends of the related attack studies, which is helpful to promote the research in the ICS security community and provide vital suggestions for defenders.
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