Amazon expands palm-scanning payment system

Users link their palm print to a credit card on the first use.
Amazon is expanding its palm-scanning payment system."Amazon One" allows shoppers to pay for items by placing their palm over a scanning device.Users link their palm print to a credit card on the first use.The company has been testing the device in about a dozen physical stores since the Fall.Amazon is bringing the palm scanner to a Whole Foods in Seattle, with plans to roll out to more stores in the coming months.
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