Also, be aware that Dominion voting systems actually acquired the old "Diebold Election Systems", who were not so secure a couple of years back. (though things may have changed by now, of course)
https://en.wikipedia.org/wiki/Premier_Election_Solutions
Note that it looks like the states on that list that have “DREs without VVPAT” (electronic machines without a paper trail) are Indiana, Kentucky, Louisiana, New Jersey, Tennessee, and Texas on that list, along with some DREs without VVPAT in Kansas and Mississippi.
Since Trump won 7/8 of those states, a conspiracy theorist might suggest that Trump’s team successfully hacked the electronic machines in those states that have no paper trail.
However, there’s really very little reason to believe there was fraud in this election - but those republican states (and New Jersey) should replace their DREs without VVPAT by the next election so that they have a secure paper trail for auditing.
Do let me temper that slightly :
Some states didn't or didn't fully have a paper trail quite yet https://ballotpedia.org/Voting_methods_and_equipment_by_stat...
Also, be aware that Dominion voting systems actually acquired the old "Diebold Election Systems", who were not so secure a couple of years back. (though things may have changed by now, of course) https://en.wikipedia.org/wiki/Premier_Election_Solutions