paper ballots are not perfect, but it's a proven technique with known processes and checks (double counting, check the number of votes match the number of ballo

paper ballots are not perfect, but it's a proven technique with known processes and checks (double counting, check the number of votes match the number of ballots, people from various parties controlling the ballot, etc). Also, at least for national election, it's quite hard to manipulate such ballot wildly as there are heavily decentralized with a lot of individual polling places. It's quite hard to have a massive fraud on the ballot itself has you have fraud in hundreds of places. Now with the voting machine, you have one or a few central points where it could be possible to take over the voting machines and manipulate the vote on a large scale. Also, voting machine can be quite horrible. It's basically a computer that is only used once or twice a year. So it's likely that voting machines have a ton of CVE. Also, those are generally not very well made, with a lot of security holes, from physical attack to debug ports not removed, default passwords from the manufacturer not replace or bad configuration/lack of security in the software. The only use case for a voting machine that I could see is the following: Using a voting machine where when you cast your ballot, it prints a paper with the name of the candidate, after that you do it the 'old' way (envelope+ballot). When counting it's now possible to compare the paper ballot and the electronic one and check if everything matches. As a side effect, it reduces the quantity of paper required.