I can (and regularly do) explain the security of our elections in a few sentences that everyone has understood so far. I almost have a masters in CS and I can only understand like half of what Helios Voting does.

- committees are made up of 6 people that have to be nominated by 6 different parties - 3 of them must be on the polling place at all times - 2 of them must have eyes on the ballot box at all times - all 6 are present for the counting - the higher-level comission (chosen by the same system) double-checks uncounted ballots - everyone checks that their partial result is correct on the website - anyone can check that the published partial results are summed correctly