“Behind the Facebook profile you’ve built for yourself is another one, a shadow profile, built from the inboxes and smartphones of other Facebook users.” Kashmir Hill explains how Facebook figures out everyone you’ve ever met.

+ “Courtney was beginning to feel trapped in a world of anonymous abuse. She didn’t know if she would be able to convince anyone that what she believed to be happening was real.” Wired: How one woman’s digital life was weaponized against her.