Piling-on to my comment here: They're using an exploit to get access to the filesystem of the device: https://wiki.exploitee.rs/index.php/Exploiting_Nest_Thermo

Piling-on to my comment here: They're using an exploit to get access to the filesystem of the device: https://wiki.exploitee.rs/index.php/Exploiting_Nest_Thermostats https://wiki.exploitee.rs/index.php/Exploiting_Nest_Thermost...