Facebook Is Giving Advertisers Access To Your Shadow Contact Information

I directed the ad to display to a Facebook account connected to the landline number for Alan Mislove’s office, a number Mislove has never provided to Facebook. He saw the ad within hours.

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Facebook is not content to use the contact information you willingly put into your Facebook profile for advertising. It is also using contact information you handed over for security purposes and contact information you didn’t hand over at all.

Source: Facebook Is Giving Advertisers Access To Your Shadow Contact Information | Gizmodo Australia

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