My relationship with Joss Whedon is complicated.
Just as a note of the most infamous American "hacks" -- the famous rigged machines of Chicago and the dead voting.
Those were highly limited -- it required total precinct control (so not scaleable), required both the physical machines be altered (to change the count), and the voter registration to be altered (to "pad" the registration numbers -- if there are 10,000 eligible voters and 9500 turn out, you can't add 600 more votes without making people suspicious, so you register a 1000 or so more people).
Neither of which can be done with machines these days (too many auditors from both parties).
Notice that it was still a machine hack -- adding paper ballots or people showing up to vote more than one time or altering people's actual votes didn't happen -- they padded the count.
That "hack", if you tried it with paper ballots today, could be defeated by a random audit of the paper ballots. (You'd quickly find less ballots than voters, in very suspicious percentages). On a pure electronic machine, with no paper record? You could never tell....
In the end, if you're gonna use electronic voting booths -- they should print out a human readable ballot which is verified by the voter, and subject to random audits of the machine count versus the stored and voter-validated 'receipts'. Any problems should trigger a full audit, and if necessary a full hand recount.