Many people have been losing their accounts in which they play with the most, got it robbed, or something like that. Well, fear NO more! This is just a solution to the problem and might prevent lots of scamming of accounts.
I'm sure many of you may know this, but a simple way to solve all this is to make a new account in which you only buy things from that account. For instance, I have a PS3 account, iDelete--. I made a new account with the name of CoDLC and from now on I will only buy from that account.
Whenever a friend asks me for a map pack or theme, I'll just send him that account's detail and not the iDelete-- info. I can guarantee this works as I've experienced it. Good luck out there!