Google Authenticator is a multi-factor authentication tool launched by Google based on OTP (One Time Password), which can effectively improve the overall security of user accounts.
For example, after setting up multi-factor authentication, you must fill in a one-time password in addition to the password every time you log in to the account. The possibility of this password being copied is almost zero.
Therefore, even if the user account password is accidentally leaked, it will not cause many problems. After all, the attacker cannot directly login to the user’s corresponding account through the account password.
But Google Authenticator has a drawback that it does not support network synchronization. Its identity verification is completely dependent on the mobile phone. If the mobile phone is lost, it will cause serious problems.
When the phone with Google Authenticator is lost, it means that we cannot log in to the website. We must contact the website support staff one by one to appeal the removal of multi-factor authentication.
It’s not uncommon for mobile phones to be lost and there may be more cases of replacing new ones. The iOS version of Google Authenticator has not been able to support account migration for 10 years since its release.
This means that when replacing the new machine, we need to cancel the multi-factor authentication of the website one by one, and then re-enable each website one by one after installing the authenticator on the new machine.
Until yesterday, Google finally updated the Google Authenticator app for iOS to bring the export account function, and users can directly export the bound information to the new mobile phone.
The new export account function supports exporting ten accounts at a time. After clicking the export option, a QR code will appear, and the bound accounts can be imported by scanning with the authenticator on the new mobile phone.