Microsoft has developed open-source voting protection technology to identify when or if votes are tampered with. As their website describes:
"ElectionGuard is a way of checking election results are accurate, and that votes have not been altered, suppressed or tampered with in any way. Individual voters can see that their vote has been accurately recorded, and their choice has been correctly added to the final tally. Anyone who wishes to monitor the election can check all votes have been correctly tallied to produce an accurate and fair result."
I recommend the use of this technology, or similar programs, to secure each vote in the 2020 election.