When you successfully restore access to an account with two-factor authentication enabled:
2FA is disabled
access to your account is revoked from websites and apps
old application passwords stop working
You can enable 2FA again immediately after you restore access.
To restore access to an account when two-factor authentication is enabled:
Confirm the phone number that you linked to your account:
Enter your number in the field and click Send code. You will receive an SMS with the code.
Enter that code in the space provided.
If you can't access the linked phone number or you've forgotten which number it is, click I've forgotten my phone number to contact our Support staff. Independently restoring access without a phone number is not possible.
If you received and entered the code from the SMS, you are then prompted to enter the PIN code which you created while setting up 2FA.
If you enter the wrong PIN code 10 times, you are automatically blocked from further attempts to restore access. In this case, you should fill in the form to contact Support.
If the PIN code is entered correctly, you can set a new password for your account. Then you can re-activate 2FA.
You will need to create new app passwords for third-party apps and mail importers because your old passwords will stop working after you disable 2FA. New passwords can be created on the access management page.
If you have lost the phone which you installed Yandex.Key on, but still have the SIM-card with your main account number on it, then follow the instructions on how to disconnect Yandex.Key from your account.
If the lost phone has the SIM card with your main account number, then the person who finds your phone can access your Yandex account by inputting your Yandex.Key PIN code. Follow these precautions to minimize the risk of being hacked:
Block the SIM card by following your mobile service provider's instructions. That way only you can restore access to your account.