You have the option of using two-factor authorization to add security to your account. The method uses Google Authenticator to get it done, so start by making sure this app is installed on your device.
Select this option and follow the instructions there.
Note: Disabling this option can be done at any time, but requires your device or backup code. MAKE SURE TO SAVE THE BACKUP CODE. Make sure you create your backup methods with Google so that you won't get locked out if you lose your device or when you change phones. If you lose your access, it can be reset on the backend, but this will require identity verification.
