Depending on the user's choice, a text message is sent or a phone call is made to the verified phone number to identify the user. During subsequent sign-ins, the user is prompted to select either the Send Code or Call Me phone MFA option. SMS or phone call - During the first sign-up or sign-in, the user is asked to provide and verify a phone number.The user provides the OTP code that was sent in the email. Email - During sign-in, a verification email containing a one-time password (OTP) is sent to the user.The methods of the multifactor authentication are: With Conditional Access users may or may not be challenged for MFA based on configuration decisions that you can make as an administrator. For example, the customer can sign in to a banking application with a social or local account and check the account balance, but must verify the phone number before attempting a wire transfer. You don't require multifactor authentication to access an application in general, but you do require it to access the sensitive portions within it.For example, the customer can sign into an auto insurance application with a social or local account, but must verify the phone number before accessing the home insurance application registered in the same directory. You don't require multifactor authentication to access one application, but you do require it to access another.This feature helps applications handle scenarios such as: If you already created sign up and sign-in user flows, you can still enable multifactor authentication. You enable multifactor authentication without writing a single line of code. Enable multifactor authentication in Azure Active Directory B2CĪzure Active Directory B2C (Azure AD B2C) integrates directly with Azure AD Multi-Factor Authentication so that you can add a second layer of security to sign-up and sign-in experiences in your applications.
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