Kevin Fu is a professor of electrical engineering and computer science at the University of Michigan. He heads a research group on medical-device security, Archimedes, that works to find vulnerabilities in medical equipment. WattsUpDoc, a system that can detect malware on medical devices by monitoring changes in power consumption, is based on his work. Professor Fu has agreed to put down the pacemakers for a moment and answer your questions about his work and medical device security in general. As usual, ask as many as you'd like, but please, one question per post.
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