Microsoft Authenticator software has introduced “number matching” for users who select push notifications as multi-factor authentication (MFA) method when logging into an online service. This service update can protect users from accidentally approving sign-in request initiated by a third party.
The new “number matching” function has been enabled on 17 April 2023 6:00 p.m.
How will “number matching” affect services required MFA?
For users who select push notifications as identity verification and already installed “Microsoft Authenticator” app to the mobile device, when MFA service is performed, a 2-digit number will be displayed on your PolyU Single-Sign-On browser screen. Please enter this number to “Microsoft Authenticator” app in order to complete the sign-in process instead of simply pressing “approve” button shown on Authenticator app screen.
To use this feature, the minimum “Microsoft Authenticator” app version for Android is 6.2006.4198 and for iOS is 6.4.12. You need to update your “Microsoft Authenticator” app if it has not been updated since 2021. To check your installed version/ release of Authenticator app, please sign in Authenticator app and select “Help” option from app menu.
It is the same process as before if you use “Passcode” authentication method (i.e., 6-digit display on your authenticator app). You should input the 6-digit verification code from Authenticator app to the PolyU Single-Sign-On screen.
Please visit MFA service website for more information.
If you need further assistance, please contact our IT HelpCentre at (Tel: 2766 5900, WhatsApp/ WeChat: 6577 9669).
