I also recommend Andrew Appel's talk on the mechanics of voting. In addition to the dangers inherent in any complex electronic system, he also discusses how we

I also recommend Andrew Appel's talk on the mechanics of voting. In addition to the dangers inherent in any complex electronic system, he also discusses how we invented the secret paper ballot. It may look "low tech", but the secret paper ballot is several hundred years of bugfixes and security features that we would be foolish to ignore. https://www.youtube.com/watch?v=abQCqIbBBeM https://www.youtube.com/watch?v=abQCqIbBBeM