Sequoia/Dominion assigning wrong ballots in 2012:
https://www.computerworld.com/article/2502640/e-voting-system-awards-election-to-wrong-candidates-in-florida-village.html
Illegal activities
https://www.madcowprod.com/2016/04/28/election-company-in-ny-primary-has-arm-long-rap-sheet/