It's funny when the Right screams voter fraud, the left calls them all stupid because they have no evidence.
When he Left screams voter fraud from Russian hackers that they have zero evidence of, we have to waste millions of taxer payer money with lawsuits and recounts.
There is a difference between voter fraud and election fraud. Voter fraud is when an individual is able to cast a vote they are not supposed to. So far there has only been 4 cases of actual voter fraud this election. Election fraud is on a massive scale where hundreds or thousands of votes are changed or suppressed. It is easier to change the outcome of an election with a rigged election. Republicans falsely claim that voter fraud is a massive problem, so when they control state legislatures, they gerrymander districts and pass onerous voter ID laws that make it difficult or impossible for people who don't generally vote Republican (usually people of color) to vote (they don't need Russian hackers). This is a form of election fraud (but legal). Other forms of election fraud are tampered with ballot boxes like that has been reported in the Wisconsin recount. Democrats claim election fraud. They are not the same or equivalent. Election fraud can be harder to prove or do much about.
We need a balloting system that is auditable. A recount isn't an audit. An audit checks to make sure the system is working as it is supposed to and that votes are counted and reported accurately. This usually means some sort of paper trail. You can still use electronic voting machines as long as it prints a record that can be viewed.
As a side note, I favor an instant-runoff balloting system so that voter preferences are recorded, so that a candidate in a multi candidate election, a candidate doesn't win with a plurality of votes (Candidate A gets 39%, Candidate B gets 37%, Candidate C gets 24%. Candidate A wins but 61% didn't vote for him).
The number of computer scientists in a room is inversely proportional to the number of bugs in their code.