Google revealed back in February that it would enable all Nest users to allow for two-factor authentication this spring. Google is now starting to enforce this latest security measure for 2FA account.
This measure is intended for Nest users who have not moved to a Google Account or who have been enrolled in a two-factor authentication process where a code is texted. Those remaining unsecured accounts at any sign-in will be forced to use 2FA based email.
That is intended to “reduce the risk of an unauthorized person accessing your Nest account, even though they have your Nest username and password.” This comes in the wake of several news reports of reused credentials stolen from other sites that are used to access Nest accounts over the past year.
Google also suggests today that you “consider switching to a Google Account if it’s right for you.” This method utilizes the same Gmail and YouTube leveraged security apparatus.
This Nest 2FA requirement is being rolled out this month, with Google alerting users via email before account changes are implemented: