Microsoft Office 365 : Configuring two-factor authentication

Through the Microsoft Authenticator app

It is possible to configure its double authentication options manually through the following link : https://aka.ms/mfasetup

Enabling two-factor authentication will disconnect all connected Office 365 applications, a reconnection to these applications will be requested once the configuration is complete

Download the app

for iphone : for android :

Accept the collection of basic information from the application to ensure its proper functioning

Choose Scan a QR code and go to the next step

Click Next

Choose Mobile App

On the first drop-down menu, the default method is through a phone number, using the Microsoft Authenticator app is faster and will potentially become mandatory, so we recommend choosing Mobile App from the drop-down menu

If you do not want to install an application on your mobile phone

Choose Authentication Phone and enter your number, you will then be asked to confirm this phone number via a code that will be sent to you by SMS. A code will be sent to you each time you log in on a new device or when authentication expires. If you choose this option, you've completed the procedure.

Choose Receive notifications for verification then click on Setup

to simplify double authentication validation for future times, the application will simply ask you to approve connections.

Scan the QR code

A new window appears with a QR code, scan this code with your phone through the Microsoft Authenticator app

On your computer, click Next

Once scanned, a notification will let you know that the account was added successfully.

This triggers an approval request to be sent to your phone

Add a mobile number

To guarantee that you can connect even if you lose access to the application (when changing your phone, for example), you will then be asked to validate your phone number via a code that will be sent to you by SMS.

(as indicated, this number will not appear on your contact card and is only used for the security of your account)

You can now (re)connect to different Office 365 services.