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Imagine unlocking your computer the same way you do a car. That’s right, you have a little fob, and you push the button. And presto! It’s unlocked. (Maybe it even does a little “beep” too. Boy, that’d be great.) Google’s new Titan Key, which I tested this week, is not far from this vision. Developed internally, and now in the hands of more than 85,000 Google employees, the Titan Key has eliminated phishing at the company, according to Google. And now you can buy one yourself for $50.