2-Step Verification (2SV) adds an extra layer of account security. When you activate 2SV, you can choose to sign out of PlayStation Network on all your devices, so make sure you know your account password and sign-in ID before switching it on.
When you sign in on your PS4 and 2SV is activated, you are asked for:
Step One: your account password and sign-in ID (email address), and
Step Two: a verification code that we text to you.
You usually stay signed in on your PS4, even when it is switched off. However, you need to sign-in with a verification code if:
The verification code is valid for 10 minutes after you sign in with your account sign-in ID and password. If you enter a verification code after this time, you will see an error message and you can’t use this code for sign-in. Select [Resend Code] from the sign-in screen to get a new code.
You can add up to two mobile numbers to your account and choose one to receive 2SV texts. To update your mobile number you need to add your new number and remove your old one. If you already have two mobile numbers on your account, you need to remove one before you can add a new one.
To add a mobile number:
To remove a mobile number: