Google will require two-factor authentication for Nest accounts starting this spring February 11, 2020 https://www.androidpolice.com/2020/...ation-for-nest-accounts-starting-this-spring/ Google Nest: More protection for Nest accounts
Google Is Slowly Requiring Nest Users To Use Two-Factor Authentication May 5, 2020 https://www.ubergizmo.com/2020/05/google-require-nest-users-two-factor-authentication/ Google Nest: Two-Factor Authentication Update