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When Cyber Got Real: Challenges in Securing Cyber-Physical Systems

The security challenges arising at the layer between their digital and physical components of Cyber-Physical Systems (CPSs) are, at the same time, pressing, important and complex. In this paper, we discuss how the unique nature of CPSs influences and drives security analysis through two case studies. We also discuss how sensors and their networks, being a key element of the aforementioned interaction surface, are critical to this effort.