One of the more prominent members of the Anonymous hacking movement has shot down reports that the group is planning to take down Facebook on Nov. 5. "Sabu" tweeted Wednesday that the so-called OpFacebook is a hoax. His claim was backed up by AnonOps, considered the most reliable Anonymous news source on Twitter. It is possible splinter members are planning the attack, which is being launched over allegations that Facebook provides information about its users to government agencies and security firms, according to a YouTube video posted in mid-July. The Nov. 5 date is known as Guy Fawkes Day to commemorate the capture of the British revolutionary who plotted to blow up the House of Lords.