If you have spend hundreds of hours gaming at Neopets and have a massive gallery, a whole page of trophies and millions of Neopoints chances are you have a PIN / Personal Identification Number in use on your bank (for withdrawals), your gallery (to be able to remove items) and your Safety Deposit Box (to be able to remove items). If you don’t and your account is “sniffed”, you could end up losing everything including your pets.
Cookie sniffers (packet sniffer) capture the password and account information transmitted from your computer to a server; in regards to Neopets it happens when a code is inserted on a page and you enter a shop or a Petpet page (those are customizable). You are then locked out of your account and whoever has control of it can change your password and then start working on breaking down the account.
TNT / The Neopets Team have done a relatively great job of protecting users from this but it does happen. The most obvious way to attract people to your shop is to sell things incredibly cheap, Codestones being at the top of the list. If you ever see a shop full of 100NP Codestones you would be wise to leave the page, go directly to the Account page and change your password. In order to be completely safe you need to clear your cache of cookies too.
To set up a P.I.N. you need to go to My Account then in to PIN Preferences. If you haven’t set up a number you need to pick a four digit number and enter it into the box. Then you can select where the PIN will be applied; I have it set up so I have to enter my PIN when I remove NP from the bank, remove items from my Safety Deposit Box, un-equip weapons, send Neocash items using an NC Gift Box and remove items from my shop. There are other options that you can select for more protection but they are not things that I use on a regular basis.
Initially I wasn’t sold on the idea of using a PIN until there were a couple of cookie grabber rumors floating around on the message boards. Adding the PIN buys you some extra time to change your password if you are worried about your account security and the items you worked so hard to buy.
There is no cost or charge to add a PIN and you can change the settings on the PIN Preferences page. It might be a little bothersome to have to enter the number every time you remove something from your Safety Deposit Box or duplicate items from your gallery but with nefarious people always on the look out for aged accounts with huge galleries, that little bit of extra security can make a world of difference if someone ever managed to get your password.