Amazon expands palm-scanning payment tech to three more US stores, prompting privacy concerns

With the Amazon One technology, customers have the option to enter the store by waving their hand over a palm scanner, after linking their handprint to a credit card. — Amazon/TNS

SEATTLE: In its latest push to collect data on consumer purchases, Amazon is expanding a new palm recognition payment technology into three more Seattle-area stores, the company announced Tuesday.

Civil-liberties advocates, though, are concerned the company is storing immutable biometric information on its customers, which they say poses risks to consumer privacy.