Using the key, the Authenticator decrypts the JWE and verifies its integrity using the hash from step 3c. Why We have a handful of new users who are downloading an installing Outlook mobile on iOS devices. Make sure 'Receive Notifications for Verification' is selected. The Authenticator app uses a strong authentication token and the Key ID to retrieve the key from the Microsoft account key service. Signing into Outlook mobile app prompts for authenticator app download. If MFA is enabled/enforced you will be presented with a different login prompt.

Open a browser on your computer and go to sign in to your Office 365 work or school account. Set up MFA with Authenticator App:ĭownload and install Microsoft Authenticator App for your mobile device. If you've previously set up your security info, but you want to make changes, you can follow the steps in the various method-based how-to articles. You'll only see this prompt if you haven’t set up the security info required by your organization. If you do not have a local administrator please email can follow these steps if you're prompted to set up your security info immediately after you sign-in to your work or school account.

If you are not sure the account is enabled for MFA please contact your local help desk. Note: Before attempting to configure the Authenticator app your account must be enabled for multi-factor authentication by the organizations administrator. How to Setup Multifactor Authentication and Install the Microsoft Authenticator App on Your Phone On your mobile device, go to either the Play Store for.

Microsoft authenticator app install