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What Secrets Your Phone Is Sharing About You

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Chris Gilpin, Turnstyle

Turnstyle's founder Chris Gilpin: "We know there is more value to be extracted from this data. But we're wanting to move cautiously...."

Credit: Brett Gundlock for The Wall Street Journal

Fan Zhang, the owner of Happy Child, a trendy Asian restaurant in downtown Toronto, knows that 170 of his customers went clubbing in November.

From The Wall Street Journal
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