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Homeowner baffled after washing machine uses 3.6GB of internet data a day
(www.newsweek.com)
This is a most excellent place for technology news and articles.
Who's to say it isn't acting as a gateway for other smart devices that aren't connected to the Internet? Or part of a bot net?
Reality.
https://www.tomshardware.com/networking/your-washing-machine-could-be-sending-37-gb-of-data-a-day
Note the language could be.