Your Account PIN and security question answer

To enhance account protection, Sprint requires you to secure your account with a 6- to 10-digit personal identification number (PIN).
You'll need your PIN or the answer to your security question to access your account when calling us or visiting a Sprint retail store. This will better ensure that no one else can access your account without your authorization.
You'll also need your PIN the first time you register your account online at Sprint.com - although you won't need it to sign on to your account once you've registered. Instead, you will use your Sprint.com username and password.
Tips for creating a secure PIN:
Choose a 6- to 10-digit number you can easily recall, but make sure it's not easy for someone else to guess. Avoid using parts of your phone number or a birth date for example.
For your protection, you can't create a PIN that contains:
Consecutive and/or repeating digits for more than half its length (e.g., 111111, 123456)
Any part of your social security, Tax ID or Sprint account number.
Viewing, modifying or retrieving your PIN:
You can easily view and modify your PIN by signing on to sprint.com and going to the My Preferences tab.
If you forget your PIN, you can retrieve it in several ways:
When you establish your PIN, you must select a security question and provide your own answer to it. Your security question and answer help us verify your identity if you ever forget your PIN. Double check your answer - capitalization and spacing count.
You can have your PIN or a PIN retrieval code sent to you via email, text message or regular mail. These preferences can be established on sprint.com by selecting My Preferences > Update account PIN, or by contacting Sprint Customer Care.
Remember to keep your PIN private. If you feel someone has gained access to your PIN without your authorization, change it immediately.