Hello, Here is some ways to troubleshoot the problem : '''Use a trusted device''' *use a device (like your phone) that is already signed in to approve the new login, or use Yahoo's Sign-in Helper to reset your password. '''Use the Sign-in Helper ''' *If you cannot access another device, go to the Yahoo Sign-in Helper to recover your account using your recovery email or phone number. '''Clear Browser Data''' *If using a web browser, clear your cookies and cache, restart the browser, or try a different browser. '''Check App Settings''' (Yahoo Mail app) *Remove and re-add your account, or uninstall and reinstall the app. '''Wait 24 Hours''' *If you have exceeded the number of allowed verification attempts, you may need to wait 24 hours before trying again. Note : If you are using a third-party app (like Outlook or Apple Mail), you may need to generate an "app password" in your Yahoo security settings.