Modern Authenticationin Office 365 help desktop applications to user ADAL based authentication and eliminate the need to memorize app password. App passwords are randomly generated and it's hard for end users to memorize these passwords. Randomly generated password that can be used with an Office client application as a way of increasing security in lieu of the second authentication factor. Users who are enabled for multi-factor authentication are required to configureĪpp Password in order to use Office desktop applications, including Outlook, Skype for Business, Word, Excel, PowerPoint and OneDrive for Business. Office 365 Multi-Factor Authentication (MFA) enables you to configure additional layer of security for user sign-in process to ensure data protection and minimize the security risk. Identity Providers with Office client applications, smart card and certificate-based authentication, and it removes the need for Outlook to use the basic authentication protocol. Modern Authentication allows administrators to enable features such as Multi-Factor Authentication (MFA), SAML-based third-party Modern authentication in Office 365 leverage Active Directory Authentication Library (ADAL)-based sign-in to Office client apps.