Not that it's either relevant or germane to a discussion regarding an organization using stolen identity to wire funds electronically.
Multiple states have been using mail-in ballots for literally decades. No widespread voter fraud has ever been reported.
Here's an anecdote for you: a few elections back, my signature didn't look quite right on the envelope of my ballot. Got a call from elections officials to verify that I had in fact filled out the ballot.
There's a lot more control involved in mail-in voting than there are in fraudulently filling-out an online form and receiving an electronic funds transfer.