Big picture, where this leads is a lot of physical stuff just getting unplugged from the Internet.
It's very easy to see how this goes — one side of the ledger is the cost savings you get from remote monitoring, remote control, automated cloud backups of access logs from employee badges, or whatever dumb reason this system was internet-connected in the first place.
On the other side of the ledger is the potential cost and probability of a shutdown from a cyberattack, whether that's from a belligerent state actor, a malfunctioning or maliciously deployed AI agent swarm, weird accelerationist hackers, or whatever, plus the cost of constantly defending and hardening systems against attack.
Chances are, the cost/benefit analysis will heavily favor just unplugging the thing from the Internet.
Or maybe connect it to an air-gapped intranet