Last Friday, Samsungs new Galaxy S5 arrived with an unexpected and underhyped feature. Like the iPhone 5S, it came with a fingerprint reader, but this reader plugs directly into PayPal, which in turn connects you to dozens of different payment systems. It’s a clever trick: instead of a password, all you need is a fingerprint, carrying you through the entire web. Of course, the S5’s fingerprint scanner might fail — by all accounts, it’s far from perfect — but that won’t be our only chance.
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