A Hacker group called facebookOP claiming to Kill Facebook on November 05 2011 : Guy Fawkes Day.
A video released in youtube named as "Message from Anonymous: Operation Facebook, Nov 5 2011" was released by the group claimed that the group would “kill” Facebook because it abused its users privacy.
The group had declared they are going to execute an operation named "Operation Facebook" in which they would take down the network as it infringes users privacy and claimed the social network, based in Palo Alto,California, provides information to "government agencies" so they can "spy on people". Operation Facebook is first phase of 3-phased Operation as they Twitted on #OpFacebook. The group also has an large number of subscriber in the  forum they own encouraging like minded people to join them in their mission.