On: Hacker increased chemical level at Oldsmar's city ...

[kritiko]

I don't think it's an all-or-nothing proposition. You can share telemetry and get patches from a remote team without having the equipment connected to the internet to reduce the risk of destroying expensive equipment.

[Kim_Bruning → kritiko]

VPN or jump host, sufficiently firewalled in all directions.

Putting a defenseless PLC or robot controller on the open internet is clearly not the best of plans.

(though the amount of people using teamviewer is telling)