Microsoft is changing the way users complete multi-factor authentication (MFA). If you currently use a text message (SMS) or phone call to verify your identity when signing in to your Trinity account, you will need to switch to Microsoft Authenticator.
From 27 October 2026, if you have not set up Microsoft Authenticator, then you will begin receiving prompts to do so. The good news is that you do not need to wait for these prompts. You can set up Microsoft Authenticator now and avoid any interruption when signing in to your Trinity account.
If you already use Microsoft Authenticator to approve sign-in requests, no action is required.
How to set up Microsoft Authenticator
Step 1: Install Microsoft Authenticator
Download and install the Microsoft Authenticator app from:
- Apple App Store (iPhone)
- Google Play Store (Android)
Step 2: Open your Security Info page
Sign in to your Microsoft account and open your Security Info page.
Step 3: Add a new sign-in method
Select Add sign-in method.
Step 4: Choose Microsoft Authenticator
Select Authenticator App from the list of available methods.
Step 5: Link the app to your account
Follow the on-screen instructions and scan the QR code using Microsoft Authenticator.
Step 6: Complete the test notification
Approve the test notification sent to your phone to confirm that Microsoft Authenticator has been set up successfully.
