How to set up your Microsoft 365 sign-in for multi-factor authentication

Multi-Factor Authentication (MFA) enhances the security of your Microsoft 365 account by adding an extra verification step when signing in. Once your administrator enables MFA for your organization and account, you’ll need to set it up. This process is quick and takes only a minute or two.

What is Multi-Factor Authentication?

MFA is a security feature that requires multiple forms of verification when signing in. For example, after entering your password, you’ll be prompted to provide a dynamically generated verification code from an authenticator app or a code sent via SMS. This helps protect your account from unauthorized access.

How to Set Up MFA in Microsoft 365

1. Sign In to Microsoft 365
   • Use your work or school account and enter your password as usual.After clicking Sign in, you’ll be prompted for additional information.
2. Choose an Authentication Method
   The default option is the Microsoft Authenticator app, which is free and highly secure.
   • If you already have the app installed on your mobile device, click Next and follow the prompts to add your account.
   • If you don’t have the app, there will be a link provided to download it.
   Prefer SMS Verification?
   • Select I want to set up a different method.
   • Enter your mobile number. Microsoft will send a 6-digit code via SMS for verification.
   Tip: For a faster and more secure experience, we recommend using an authenticator app rather than SMS verification.
3. Complete the Setup
   After specifying your preferred verification method, your MFA setup will be complete.

Read Also: Microsoft Copilot Introduces Voice, Vision, and Advanced AI Features

What Happens Next?

• The next time you sign in to Microsoft 365, you’ll need to provide the additional verification, such as entering the code from your authenticator app or SMS.
• Typically, you’ll only be prompted for the additional verification when signing into a new app, device, or after changing your password.

Using App Passwords

If you have applications that don’t support MFA, you’ll need to create an app password. Refer to the guide on managing app passwords for more details.