> The vulnerability was in their backend cloud structure.

The vulnerability is in having a backend cloud structure.

(There are plenty of ways to provide remote access without that, and no other feature warrants it.)

Not sure why this is being downvoted, it's a pervasive flaw across all these IoT products. See my description elsewhere here about how Haier "smart" controls work. It's completely insane, and pointless. For systems that can't fail--I include heating systems in the winter--this kind of "move fast and break shit" way of doing it is malpractice. The last thing in the entire world I want my furnace controls doing is an automatic OTA firmware update. Ever.