Facebook says a hack that exploited some Web browsers was responsible for a flood of porn, violent images and other graphic content that spread across the site over the past couple of days.
Spokesman Frederic Wolens said Facebook’s security team had been working to identify the cause of the spam and that, by Tuesday afternoon, “we have eliminated most of the spam caused by this attack.”
“We are now working to improve our systems to better defend against similar attacks in the future,” Wolens said in an e-mail.
Earlier Tuesday, Graham Cluley, a consultant with Web security firm Sophos, said that “explicit and violent” images had been flooding the News Feeds of Facebook users for the past 24 hours or so.
Cluley wrote on the Sophos blog that the images included hardcore porn; photoshopped images of celebrities, including teen pop star Justin Bieber, in sexual positions; “extreme violence;” and at least one image of an abused dog. Continue reading




