Security News This Week: Oh Look, LinkedIn Also Has a 500M User Data Leak

A week into the revelation that Facebook leaked the data of 500 million users—including phone numbers and other potentially sensitive info—and the company still hasn't given a full account of what happened. But we've managed to figure out both that the root of the problem was Facebook's “contact import” feature, and that Facebook had plenty of opportunities to fix that issue before it resulted in attackers scraping half a billion people's data.