“I’ve Given Up on the Idea of Privacy”

By now most of us understand the privacy consequences of all the data we handed over to social media and Internet companies. But what happens to the huge amount of health information we generate from health apps, DNA kits, doctors' visits, blood tests and fitness trackers? Some of it's carefully protected by law. Other data -- including intimate details about our lives -- can be sold to brokers who trade it like a commodity. How worried should we be?

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