Google provide 2 step verification to protect your Gmail account. This 2 step verification is done by sending verification password on your registered mobile number.
Many times it happens that you forget your phone to carry and you want to access your Gmail account. Also it may happen that you have lost your mobile phone and want to access your Gmail account, but you may fail to access your Gmail account since there is no mode of 2 step verification between you and your Gmail account.
This problem has lead Google to create backup verification code which will help you to access your Gmail account even if you don’t have your mobile phone to perform 2 step verification.
How to create backup verification code?
#1. Login to your Gmail account and go to this link https://accounts.google.com/SmsAuthConfig
#2. Scroll down to ‘Backup Code’ and click on ‘Show backup Code’
#3. It will take you to page as shown below. Please note that each of this code can be used only once to login in your Gmail account.
#4. On the above page you will find ‘Print’ and ‘Save to Text file’. I would recommend you to create a hardcopy of the above shown code and keep it in your wallet so that you can use that code in emergency.
#5. Since this is for one time use only you can create more such codes by visiting this link https://accounts.google.com/SmsAuthConfig
Google’s 2 step verification help to keep your account safe from unauthorized access. So smartly protect your Gmail account since same Gmail account can be used to access your Google drive, Picasa web album, YouTube subscription and many more. This backup verification code will help you to access your Gmail account if you don’t have your registered mobile number with you. So create a backup copy and carry with you anywhere to access your all Google activity associated with that Gmail account.