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  • Facebook said to use people’s phone numbers for ad targeting

    CBS News - 10/01/2018

    The company may also rely on information that consumers may not be aware is being tapped to sell ads, such as security phone numbers and  “shadow information” gleaned about you from friends’ accounts, Gizmodo reports. Alan Mislove of Northeastern University and other researchers discovered that numbers provided to Facebook in two-factor authentication became targeted by advertisers within a matter of weeks, Gizmodo noted. 

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