" Stuxnet, the virus believed to have taken down Iranian nuclear processing plants in 2010, had used about ten zero-days to get inside the systems it attacked. It was one of the first of a new breed of sophisticated cyberweapons. They cost a lot of time and money to build, so someone wouldn’t be unleashing these ones without some purpose in mind. “What "

― Matthew Mather , CyberStorm (Cyberstorm, #1)