Re: How does the generic credit card module "verify" card numbers?
Originally Posted by
LRS
How does the generic credit card module determine if a card number is valid or not? (or is that a secret?)
We have decided to go manual on all our credit card processing due to the huge increase in fraud attempts lately, so we turned off the authorize.net module and turned on what I will call the generic credit card module since I don't know the proper term for it, and now process all charges manually.
How the heck does it know if a card number is valid or not since it isn't really processing anything, just storing it so it can be manually processed? I used a real credit card number to test it and only changed one or two numbers at the very end, and it said it was invalid.......
From what I can see the expiration date and code don't matter as long as the date is not in the past, but I am really curious why it rejects the number when I only changed one number at the end of the card number.
I believe there is a module in the addon section that can partly help to reject invalid numbers (based on the pattern used by each card provider etc...)
However, at the end it is totally up to you. Usually your payment gateway should help you with that.
I no longer provide installation support on forum for all my modules. However, if there are real bugs with the modules please feel free to contact me
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