Leaving the thermostat connected to the "Guest" Wi-Fi network, which is open to all guests, is the least effective action in protecting it from unauthorized access. Here is a detailed explanation:
* Network Segmentation:
* A guest Wi-Fi network is typically designed to provide internet access to visitors without granting access to the main network or its devices. However, if the guest network is open (i.e., no password), it poses significant security risks.