MagSpoof – wireless credit card/magstripe spoofer
There's more gems in there, e.g. a couple of Amex vulnerabilities:<p><a href="https://github.com/samyk/magspoof#american-express-card-number-prediction" rel="nofollow">https://github.com/samyk/magspoof#american-express-card-numb...</a><p>> I found a global pattern that allows me to accurately predict American Express card numbers by knowing a full card number, even if already reported lost or stolen.
> This means if I were to obtain your Amex card and you called it in as lost or stolen, the moment you get a new card, I know your new credit card number.