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Amazon files a pay-by-selfie patent while Microsoft’s own face authentication languishes

Amazon files for a patent allowing people to buy stuff with their face. Microsoft has this technology in place, but has yet to turn it on.

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As PCWorld's senior editor, Mark focuses on Microsoft news and chip technology, among other beats. He has formerly written for PCMag, BYTE, Slashdot, eWEEK, and ReadWrite.

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