



More from Russell SmithInstead of using a physical security key to enable two-factor authentication, you'll now be able to use any Android 7+ phone as a security key, too. If you happen to have Outlook 2013 connected to Office 365, and you suddenly can't log in, it's because the end of life for the default authentication method has been …In this article, I showed you how to enable Modern Authentication in Exchange Online so that 2FA-enabled Office 365 can use Outlook 2013 or later. In essence, you are simply enabling another authentication provider - it is not directly tied to MFA. Answer Enabling Modern Authentication for your Microsoft 365 (formerly called Office 365) tenant gives that tenant the ability to issue and validate authentication and refresh tokens (OAuth2.0 tokens) for thick clients like Outlook.
