Amazon's Two-Step Verification adds an additional layer of security to your account. Instead of simply entering your password, Two-Step Verification requires you to enter a unique security code in addition to your password during sign in.
You'll enter your sign in information like you normally would, but then you'll be prompted to enter a security code. You can receive this security code in a variety of ways depending on the option you select during sign up, including text message, voice call, or authenticator app.
If you need help from Customer Service after enabling Two-Step Verification, you'll need provide a security code similar to when trying to sign in to your account.
Tips: To simplify sign-in on computers and devices that you routinely use, you can tell us not to ask for a security code so that you won't need to enter a code each time you sign in. Afterward, that computer or device will only ask for your password when you sign in.