[ic] ip validation

[Aftermarket Cellular]

Hi,

I have recently received hundreds of fraudulent attempts on my merchant 
account from within my interchange store, where a customer uses various 
credit card numbers to find a valid one. The transactions are being 
declined by authorize.net but I am still receiving an $.08 decline fee 
each time. Is there an available script that will block an ip address 
after three attempts.

Thank you
-Bill Fiore
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