Symantec Security Response director Kevin Haley said elections can also be hacked by breaking into the machines after the votes are collected. "The results go from that machine into a piece of electronics that takes it to the central counting place," Haley said. "That data is not encrypted and that's vulnerable for manipulation."
40 states are using a voting technology that's at least 10 years old, according to the article. And while one of America's national election official argues that "there are paper trails everywhere," CBS reports that only 60% of states conduct routine audits of their paper trails, while "not all states even have paper records, like in some parts of swing states Virginia and Pennsylvania, which experts say could be devastating."