Google seems to think phones are very secure: https://support.google.com/accounts/answer/183723 https://support.google.com/accounts/answer/183723 Why mobile p

Google seems to think phones are very secure: https://support.google.com/accounts/answer/183723 https://support.google.com/accounts/answer/183723 Why mobile phones are more secure Your mobile phone is a more secure identification method than your recovery email address or a security question because, unlike the other two, you have physical possession of your mobile phone.