The media is replete with stories of vulnerabilities [real or potential] having been discovered [or likely to exist] in electronic voting machines. What I want to ask here is: what are some of the worst known examples of fraud actually happening due to electronic voting, in countries where electoral fraud is otherwise rare?

Best/accepted answer goes to the story with largest, percentage-wise impact of electronic fraud.

  • 2
    What about an answer that backs up "electronic voting fraud is as common as non-electronic voting fraud, as far as we can tell"?
    – Caleth
    Aug 6 '18 at 8:32
  • @Caleth: if it's backed up by more than mere opinion it would be a reasonable answer. I didn't ask that question yet (i.e. average comparison) because I thought it would be harder to answer with data than looking for a max/outlier. Usually it's the latter that fires up the press... but in this case I couldn't find much myself.
    – Fizz
    Aug 6 '18 at 10:49
  • @Caleth: there's a paper on India concluding that electronic voting helped reduced fraud over there: brookings.edu/wp-content/uploads/2016/10/evm_march2017.pdf And another one (more guarded) that there was no increase in fraud rochester.edu/college/faculty/alexander_lee/wp-content/uploads/… I'm not sure how widespread fraud was in India (beofre)...
    – Fizz
    Aug 6 '18 at 14:03
  • 1
    @WS2: The 2000 election was (in the problem area of Florida) a paper ballot, not an electronic ballot. Mostly Florida was so close that some of the ballots thrown out because they were improperly marked were being questioned as to whether they were or were not improperly marked (the "hanging chad") punch cards... these are not used in electronic balloting for this reason.
    – hszmv
    Aug 6 '18 at 19:27
  • 1
    Whatever you call the Yr2000 Florida system, it was vastly less transparent than the voting system in Britain - consisting of a handwritten pencil cross on a ballot paper, and counted by hand in front of candidates, press and public. If it all happens electronically inside a machine, it seems to me that transparency is totally lost. At least that is how it is mostly seen in Britain.
    – WS2
    Aug 6 '18 at 21:51

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