Bug exposes contacts of 6 million Facebook users
1 of 1
A sign with Facebook's "Like" logo is posted at Facebook headquarters near the office for the company's User Operations Safety Team in Menlo Park, Calif. in this Dec. 13, 2011 file photo.
Photos: Island Images: August 2015, Part 2
Photos: 2015 Endless Summer Photo Contest
Photos: H.S. football: St. Louis vs. Liberty, Aug. 29
More Photo Galleries »