Biometrics: Vein Scanners Show Promise

Japanese banks have turned to devices that read your finger or palm for sizable ATM cash withdrawals. Will U.S. banks follow their lead?

When Masahiko Ishibashi needs lots of cash, he gives his bank the finger. His right index finger, to be precise. The bank, Sumitomo Mitsui Banking, outfits its automated teller machines with scanners that take a snapshot of the veins in each customer's finger, and then compares it with a digital image stored in a chip on the customer's ATM card.

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