Hacker Invents Device to Spoof AmEx Credit Card Numbers

A hacker has developed a $10 device that can easily spoof American Express credit card numbers. “Brainiac hacker Samy Kamkar has developed a US$10 gadget that can predict and store hundreds of American Express credit cards and use them for wireless transactions, even at non-wireless payment terminals. The mind-blowing feat is the result of Kamkar cracking how the card issuer picks replacement numbers, and in dissecting the functionality of magnetic stripe data.”

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