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xkcd #3109: Dehumidifier
(imgs.xkcd.com)
Title text:
It's important for devices to have internet connectivity so the manufacturer can patch remote exploits.
Transcript:
[A store salesman, Hairy, is showing Cueball a dehumidifier, with a "SALE" label on it. Several other unidentified devices, possibly other dehumidifier models, are shown in the store as well.]
Salesman: This dehumidifier model features built-in WiFi for remote updates.
Cueball: Great! That will be really useful if they discover a new kind of water.
Source: https://xkcd.com/3109/
It would be a lot more difficult to hide a backdoor on a bare ESP device, than a proprietary Tuya one, just putting that out there. Regardless, I still block internet access from my ESPHome devices, because I don't want to feel like I need to constantly be on top of updates, that can cause things to break at times. I do them every couple months when I have the time to sit down and make sure everything's still working, or roll it back where it's not.