Recommended Order for Registering MFA Information

To prevent unauthorized access to your information, once you have added any MFA information to Microsoft 365, you are required to verify your identity with the MFA you set up to access the MFA settings page in Microsoft 365 from another device or browser. Therefore, if you do not register the MFA information in the correct order, you may not be able to sign in to Microsoft 365. This section describes the recommended order of MFA information registration to avoid the abovementioned sign-in problems.

Also, in our Microsoft 365 environment, MFA information cannot be registered until MFA is activated for account protection. If you access the MFA information registration page and see the message “Your sign-in was blocked”, please activate MFA first.

Here, “mobile device” refers to smartphones, tablets, laptops, etc. that can use the authentication application or a mobile phone that can receive text messages (SMS) or voice calls. As far as possible, please use a device that is available to you at all times.

1. Owners of mobile devices

Staff and others who have a workplace on campus

1. Always register your mobile device first (authentication application and phone number)
2. Additionally, register an authentication app for your work PC browser or work phone number while in possession of a registered mobile device (not the default sign-in method)

• If you first registered your home phone number but came to work without registering your mobile device
  • Register your work phone using the “Alternate Phone Number Registration”.

Others

1. Always register your mobile device first (authentication application and phone number)

   • Students should register an authentication app for their own PCs’ browsers if other mobile devices are unavailable

2. Additionally, register an authentication app for your home PC browser or home phone number while in possession of a registered mobile device (not the default sign-in method)

2. Those who do not own mobile devices

Staff and others who have a workplace on campus

1. First, register an authentication app for your work PC browser or work phone number.
2. Then do one of the following
   • Register your home phone from home using the “Alternate Phone Number Registration.”
     • If you have access to a matrix password
   • Register your home phone from the campus using the “Alternate Phone Number Registration.”
     • If you do not have access to a matrix password
3. Sign in at home using MFA with your home phone number and register an authentication app for your home PC browser

Others

1. Register your home phone number and an authenticator app for your home PC browser where you usually use Microsoft 365.
   • You may not use Microsoft 365 outside of your registered location

3. If your registered device is unavailable due to malfunction, loss, etc.

• Do one of the following
  • Register another phone number using “Alternate Phone Number Registration” from within the university.
    • If you do not have access to a matrix password
  • Register a different phone from off-campus using “Alternate Phone Number Registration”.
    • If you have access to a matrix password
  • Last resort: Contact Us
    • After confirming your identity by phone, you will be given administrator rights to add your phone number.