To use your PlayStation 3, PlayStation 4, or PlayStation Network, you need a valid email account and a password. If you forget your password, it’s almost a puzzle to figure out how to reset it. Here’s a step-by-step guide to changing your PlayStation Network (PSN) password across multiple devices.
Reset Password From Your Primary PS4
If you have forgotten your security question or other important information, you should contact Sony's helpline directly. You will need the email address or PSN name that you use on your system, and some form of identification, such as your driver's license.
If you want to reset your PlayStation password remotely, you can easily do so online.
First, go to the Sony Entertainment Network login page.