Secure your account with Multi-Factor Authentication in minutes
Install the free Microsoft Authenticator app on your smartphone. Scan the QR code for your device or tap the link to open the store directly.
Scan the QR code with your phone's camera app — no special scanner needed. The camera will automatically detect the code and prompt you to open the store.
From your computer or browser, navigate to the Microsoft 365 security portal to begin MFA enrollment.
On your computer, go to the Microsoft My Sign-Ins page:
mysignins.microsoft.com/security-infoType your Microsoft 365 work or school email address (e.g., yourname@yourcompany.com) and click Next.
Type your current Microsoft 365 password and click Sign in.
Make sure you're using your work or school Microsoft 365 account — not a personal Microsoft account — unless your organization uses personal accounts.
Once signed in, you'll navigate to your Security Info page to add a new authentication method.
After signing in you should already be at mysignins.microsoft.com/security-info. If not, click the link to go there.
Look for the blue + Add sign-in method button near the top of the Security info section and click it.
From the list, choose Microsoft Authenticator app and then click Add.
Your IT administrator may have already started this process. If you see a prompt titled "More information required" when you sign in, click Next to be guided through the same setup flow.
Microsoft will display a QR code on your screen. Use the Authenticator app on your phone to scan it and link your account.
Launch the app you downloaded in Step 1. If this is your first time opening it, tap Add account.
When asked what type of account you're adding, choose Work or school account.
Allow the app to use your camera if prompted, then point it at the QR code displayed on your computer screen.
Microsoft will send a test push notification to your phone. Tap Approve in the app to confirm everything is working.
Once the test is approved, click Next in your browser, then Done to complete the registration.
Keep your phone and computer close together while scanning. The QR code expires after a few minutes — if it does, click Refresh QR code on your screen.
Your Microsoft 365 account is now protected with Multi-Factor Authentication. Here's what to expect going forward:
Add or remove MFA methods anytime at:
mysignins.microsoft.com/security-infoFull documentation and troubleshooting at:
Microsoft Support — Authenticator AppGetting a new phone? Before you switch, add your new device as a second authenticator method at mysignins.microsoft.com so you don't get locked out.