Enable two-factor authentication (2FA)

1. Install Google Authenticator or Microsoft Authenticator on your phone.
2. In AOMS open My Profile & Security → Security and click Set up 2FA, confirming your password.
3. Scan the QR code and enter the 6-digit code shown in the app.
4. Save your recovery codes somewhere safe — each works once if you lose your phone.

From now on, signing in on a new device requires a code from your phone. You can also see and sign out other active sessions on the same page.