Multi Factor Authentication Illustration
Multi Factor Authentication Illustration
What is Multi-Factor Authentication?

Multi-factor authentication (MFA) is an authentication method that requires two or more verification factors. This means that when you want to login to an account or a site, you’ll enter your password, and you’ll need to enter a secondary access key.

For example:

MFA can also go by the name Two Factor Authentication (2FA).

2FA = two authentication factors only.
MFA = two or more authentication factors.

Different Types of Multi-Factor Authentication:

Something you know:

Something you have:

Something you are:

Authenticator Mobile Apps

MFA apps are the simplest way to secure your accounts. Once linked to your account, the app will generate random codes for you to enter after your password. These codes change regularly – usually every 30 seconds.

To setup MFA, visit your mobile app store and search for the Microsoft Authenticator app:

Microsoft Authenticator App

Once you’ve downloaded the app, it will look pretty empty. Below is an example of the app with MFA activated on some accounts:

 

Microsoft MFA App

If you click on the plus button in the top right, you can add a new account. You will be given three options:

Microsoft MFA App Accounts

Personal account: this will cover a Windows account you use at home.

Work or school account: your work or school accounts can be added here.

Other: this will allow you to add any other accounts, such as other email accounts or social media accounts.

When you select one of the options, you’ll then be asked to scan a QR code or you have the option to manually enter a code. Both the QR code and manual code will be on screen when setting up MFA on your account.

For some accounts, you may then be asked to enter the MFA code from the app to confirm setup.

When you click on an account in the MFA app, it will bring information about the setup. This can include the option to enable notification approval. If you enable this, an approve or deny option will appear when you sign into the account.

Android Microsoft MFA App

Free Guide

Download, share and use our free guide on multi-factor authentication.

Multi-Factor Authentication Guide

More of a visual learner?

Watch our video demo below to learn more about multi-factor authentication.

Client Story

East Anglian Air Ambulance

Enabling two-factor authentication.
View Client Story

Latest Guides

Microsoft 365 Monthly Feature Update. Microsoft Logo.
Microsoft 365 Monthly Feature Update
Check out our top three Microsoft 365 feature releases each month.
Copilot
Microsoft Copilot
Get up to date with the latest on Microsoft's AI assistant.
Microsoft Clipchamp for Work
Learn more about Clipchamp, Microsoft’s video editor that’s free with 365 business licences.