HOW TO FIX "INVALID SECURITY CODE" PROBLEM:
Since apple's "customer support" consists of a whole bunch of ******** derelicts who blame you or your credit card company for this message, I had to take it upon myself to figure out a way around the problem. All you have to do is change your billing information in iTunes from your credit card to PayPal.
I was getting this same ridiculous "invalid security code" message when I knew I had entered it correctly!
It's funny, because PayPal recognized it as a valid account and security code, and now all my apps finally work again.
- Open iTunes
- Go to the Store
- On the right, click on "Account"
- Next to "Payment Type", click "Edit"
- Click the PayPal logo and either enter your existing PayPal account info or create a new one (as I did)
I'm not a fan of PayPal, therefore I never had one. I created one really quickly and even used the same account that mysteriously stopped working. (AND WITH NO PROBLEMS... THANKS, APPLE)
I really hope this helps anyone with this same problem as it is really frustrating when somebody **cough cough apple** tells you that you're doing something wrong when you know you're not, and takes no liability whatsoever when the error is on their behalf.
Happy Apping.... For now