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the stuxnet attack had a significantly higher level of sophistication than this. if your threat is a competent nation state the bar is much much higher.

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Is the threat not from a competent nation-state or supranational entity? Is that not the intention of designating power & water & electricity systems as "critical infrastructure?"

I don’t think the water treatment plant of Oldsmar, Florida falls under the same threat model as a uranium enrichment facility.

I don't think the threat is much different, but an attacker doesn't have the patience for a stuxnet level attack on one of many water treatment facilities.

If it was airgapped it wouldn't be available to easily be used by a nation state to attack infrastructure in case of other simultaneous attacks.

Remember the concerns during the first gulf war about Iranians potentially planning to contaminate drinking water in the US?

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