Hundreds of millions of people use passwords every day — they unlock our devices, email, social networking, and even bank accounts. However, passwords are an increasingly feeble way to protect ourselves: Barely a week goes by without a major security gaffe hitting the news. This week, it’s Cisco — maker of much of the hardware that essentially powers the Internet.
Right now, almost everyone is looking to move beyond passwords to multifactor authentication: requiring “something you have” or “something you are” in addition to something you know. Biometric technologies that measure eyes, fingerprints, faces, and/or voices are getting more practical, but frequently fail for some people, and are hard to bring to hundreds of millions of users.
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