I hope this is done over VPN and that you have 2FA configured on the VPN endpoint? Please don’t tell me it’s just portforward directly to a VNC running on the servers or something similar because then you have bigger problems than just random ‘oops’.
I have never accessed any of my servers from the internet and haven’t even adjusted my router firewall settings to allow this. I kept wanting to but never got around to it.
Since these are home systems the potential monetary damage from downtime and re-install isn’t huge, so personally I’d just take the hit and wipe/reinstall. I’d learn from my mistakes and build it all up again with better routines and hygiene. But that’s what I’d do.
Yeah this and other comments have convinced me to reinstall and start from scratch. Will be super annoying to set everything back up but I am indeed paranoid.