An appliance could just have blutooth so it can connect to an app on your phone. With the machine not having a direct internet connection, the app can collect diagnostics, metrics and do software updates. Require you to press a button in the machine to pair it to your phone.
99% of the functionality with 0 annoyance and ~0 security/privacy risks.
99% of the functionality with 0 annoyance and ~0 security/privacy risks.