Hackers scour voting machines for election bugs

Hackers attending this weekend's Def Con hacking convention in Las Vegas were invited to break into voting machines and voter databases in a bid to uncover vulnerabilities that could be exploited to sway election results.

There’s been a lot of claims that our election system is unhackable. That's BS," said Braun. "Only a fool or liar would try to claim that their database or machine was unhackable."

Barbara Simons, president of advocacy group Verified Voting, said she expects Russia to try to influence the U.S. 2018 midterm election and 2020 elections. To counter such threats, she called for requiring use of paper ballots and mandatory auditing computers to count them.