I wasn’t aware you could use a Nest without an account. If that’s possible, absolutely no need for MFA. If you use a throwaway account and don’t connect the device to a network, then there’s no reason to pay the premium for the device.
Whether or not the device is connected to a network has little bearing on securing the account. Usually you’re getting a smart thermostat to control it remotely or for a savings program with your power company which requires at least the account be connected. You don’t want that to be exposed ergo you want MFA.
I wasn’t aware you could use a Nest without an account. If that’s possible, absolutely no need for MFA. If you use a throwaway account and don’t connect the device to a network, then there’s no reason to pay the premium for the device.
Whether or not the device is connected to a network has little bearing on securing the account. Usually you’re getting a smart thermostat to control it remotely or for a savings program with your power company which requires at least the account be connected. You don’t want that to be exposed ergo you want MFA.