SLIPPERY SLOPE. “The frontier between the digital and the biological world is already blurring, the researchers said, citing cybernetic prosthesis as a good example. Some people have several electronic devices in their body, such as pacemakers, deep brain stimulators, and cochlear implants.”
http://www.pcworld.com/article/252103/computer_viruses_could_cross_frontier_into_biological_realm_researchers_say.html