I recently wrote about how voting machines could be hacked. There is a second way the vote can be hacked with no one finding out, if cleverly done.
Today, the web site Mother Jones published an article that someone is selling 40 million voter records on the ‘dark web.’ These are the records hacked from a number of state voter registration databases. If they can be downloaded, they can also be uploaded once changed by a nefarious agent. The uploaded records could disenfranchise a selected group of voters, making them ineligible to vote, reducing the votes for a non-favored candidate. A vote not made is a vote not counted, and helps tip the balance to the favored candidate. Between this method for counties using paper ballots and the counties using vote machines, it may have flipped the vote.