According to this story in the Sentinel, Knox County got hacked election night and the distributed-denial-of-service attack that made the election results unavailable was a smokescreen for a more invasive attack. Somebody hacked a county server and had a look around while everyone was distracted by the election website being down. The FBI and Homeland Security is investigating. It's kind of hard to believe that this elaborate attack was just someone deciding to have a quick look around on a county server.