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 2SV is activated and you sign in on your PS3, PS Vita, PS TV, PSP or Xperia you are asked for:
Step One: your account sign-in ID (email address), and
Step Two: your Device Setup Password, instead of your usual account password.
You need to authorise your PS3, PS Vita, PS TV, PSP or Xperia on your account to get your Device Setup Password.
You cannot activate 2SV on your PS3, PS Vita, PS TV, PSP or Xperia. You need to activate it on your PS4 or through account management on web browser.