Abstract

Computer system security and engineering system safety have traditionally been very distinct topics pursued by people with very different expertise. The advent of cyber-physical systems and the Internet-of-Things (IoT) changes that dynamic. Safety and security are now inextricably linked through our linkage of computer hardware and software with complex physical plants. Computers have been added to traditional engineering systems to achieve goals that we cannot achieve using traditional mechanical control. The automobile provides an important early example of the benefits of cyber-physical systems: computer engine control allowed manufacturers to simultaneously meet stiff requirements on both fuel economy and emissions; features such as antilock brakes and traction control improved vehicle handling and safety; and a new generation of supercars use software to not only provide sophisticated vehicle capabilities but also to change the vehicle's handling characteristics at the push of a button.

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