Comment by cduzz

Sure, that's possible?

It's also possible that, because the US is busy bombing Iran, Iran may be busy attacking the US infrastructure in any way possible? The US is also in a tepid war with russia, last I checked.

Some "cyber" crew getting a shell on an outsourced service provider and running a "defrost" command is also a totally explanation for this situation. It's also totally possible that some crew has mapped out a list of PLC entry points for various orgs and has them in a spreadsheet of "if we find a vulnerability, we should X this Y with this prestaged script that our intern / LMM cooked up last year to defrost these freezers"