Response codes are supplied by the merchant’s bank to your payment gateway provider after making contact with the customer’s card issuer.
After receiving the payment information, your bank contacts your customer’s bank to confirm the details of the transaction (card #, expiry...
I am a guy who doesn't usually sell dumps, my area of blackhat being another.
But in a complicated breach attempt, one thing led to another and here I am having access to a huge network of POS systems and to a huge database of fresh, untouched dumps.
So here we go:
1. They are...