“Number matching” means that when users go through an MFA Authentication, they see a number that they must enter in the Authenticator app to complete the authentication process. The new process for logging into Microsoft 365 gives you an auto-generated number to type into your device.
This resets the user's MFA details, and they must now re-register their MFA methods upon their next sign-in.Microsoft is moving to a more secure method of authentication that changes “Push” notifications. If the user's device has been lost or stolen, then also click Revoke MFA sessions. On the left-hand menu panel, under Manage, click Authentication methods.Īn option bar appears at the top of your screen.The selected user's Profile page appears. Search the list for, and click on, the desired user.From the left-hand menu, click Azure Active Directory and, from the options given, click Users.Go to, and sign into the Microsoft Azure portal using an account with administrative privileges.Resetting a user's MFA details requires the user to re-register at next log-on. To complete this task, you must have appropriate Office 365 administrator permissions. This article shows how an administrator can reset a user's MFA details, enabling the user to then set up new MFA details at their next log on. However, if this is not completed prior to decommissioning the old device, then administrator assistance will be required to reset the user's MFA details. Individual users may manage their own MFA settings using the online portal at. A resultant change to MFA details is therefore required if the user is to continue to enjoy access.
This is likely to impact MFA and so prevent access to the user's computer. Over time, a user may lose or replace an authenticator device or perhaps move to a new mobile phone number. Multi-factor authentication (MFA) is an authentication method in which a computer user is granted access only after successfully presenting two or more pieces of evidence (or factors) to an authentication mechanism. Resetting an Office 365 user's MFA details
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