How do I change my two-factor authentication (2FA) preference from SMS to Authy on Newton? July 31, 2020 19:56 Updated Download the Authy app on iPhone or Android. Login to your Newton account. Navigate to the menu and navigate to 2FA method. Select Authy on the slider. The next time you login into your Newton account, your 2FA method will be Authy. Related articles How do I use Authy two-factor authentication (2FA) for Newton with Authy notifications turned on? How do I use Authy two-factor authentication (2FA) for Newton with Authy notifications turned off? How do I change my two-factor authentication (2FA) preference from Authy to SMS on Newton? What happens to my Newton account in the case of death? What are the withdrawal limits on Newton?