The testing is not open. Selected groups are invited, and it runs for a given length of time. To the point that obviously only so many flaws can be found, as th

The testing is not open. Selected groups are invited, and it runs for a given length of time. To the point that obviously only so many flaws can be found, as the test environment is not realistic. There are plenty of examples of flaws in the voting system. Most of them have been corrected, but not all. Yes, fraud is widespread with paper voting. But it does not scale. One single flaw in an electronic voting system could scale to every single voting machine, thus impacting even presidential elections.