Mitsubishi Kumo Cloud
Mitsubishi heat pumps with a Kumo Cloud Wi-Fi adapter: on and off, heat, cool and auto, the temperatures and the fan in the Home app. Use the email and password of the Kumo Cloud app; after this the helper talks to the units on your network.
The helper keeps what you type only on this computer, to talk to Mitsubishi Kumo Cloud for you. It never shows it again.