MFA Number Matching

Overview

Multifactor authentication (MFA) is required for employees when logging in to AACC online services.  This includes MyAACC, Email, OneDrive, Teams, and other Microsoft applications.  MFA is also used to authenticate with FortiClient (VPN) for remote access. 

Beginning May 2, 2023, Number Matching will be enabled for Microsoft Authenticator.  Microsoft is releasing this upgrade to improve the security of MFA and the Authenticator app.  Instead of selecting "Approve" on the Authenticator app, you'll be required to enter a two digit number to approve your sign in.  Take a look at the instructions below for more information. 

Uploaded Image (Thumbnail)

If you've never set up or used MFA, follow the instructions here for Setting Up Multi-Factor Authentication.

Instructions

These step-by-step instructions demonstrate the sign in experience after Number Matching has been enabled on May 2, 2023.

  1. Sign in to an AACC online service, such as MyAACC or office.com. Enter your full @aacc.edu email address.

AACC sign in page

  1. Select Next and enter your password on the next page. If Microsoft Authenticator is your default MFA sign in method, you'll receive a prompt, similar to the image below to approve your sign in request. 
  2. Open the Microsoft Authenticator app on your mobile device.  Approve your sign in by entering the number shown and selecting Yes on your mobile device.

Once your sign in has been successfully approved, you'll be redirected to the service (ex. MyAACC, office.com, etc).

Troubleshooting

I am getting an error on my Microsoft Authenticator app

If you're running an older version of Microsoft Authenticator that doesn't support number matching, authentication won't work. You will need to upgrade to the latest version of Microsoft Authenticator.  Outdated versions - Android versions prior to 6.2006.4198, or iOS versions prior to 6.4.12.

Still have questions?  Contact the Technical Service Desk or request assistance using one of the service offerings on the Multifactor Authentication service page.  

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