Kudos to Georgia for finding and tracing the attack and making it public.
Homeland Security should be testing the election infrastructure. It needs to do white hat attacks to see if they are vulnerable.
But it should be done under supervision with congressional oversight from both parties. Otherwise you could get rogue people inside Homeland Security actually manipulating elections.
I definitely agree with this. I would assume that there is documentation to show that the scan was routine and above board, although probably not normally available to states and other jurisdictions. Oversight should be enough, but these days even oversight is not politically impartial. Depending on party and objective, some things seem to be given the blind eye while others are scrutinized in on incessantly.