And it was detected. That's a big part of the advantage of paper ballots. The cost of subversion is high because more people need to be in on any conspiracy to

And it was detected. That's a big part of the advantage of paper ballots. The cost of subversion is high because more people need to be in on any conspiracy to subvert the system. More conspirators means more and more incentive to defect against co-conspirators. Electronic systems do not scale subversion cost with electorate size. But they do scale the payoff of subversion.