Egor Homakov exploits bug in Starbucks gift cards gets rebuke, not love

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A security researcher said he found a way to game Starbucks gift cards to generate unlimited amounts of money on them. Both he and the coffee chain are grumbling after he used a fraudulent card to make a purchase, then repaid the amount and reported the vulnerability.

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Story added 25. May 2015, content source with full text you can find at link above.