Several Anonymous members have denied and denounced the group's plan of a cyberattack on Facebook, which was announced in a YouTube video clip weeks ago. The hacker group insists the plan is not supported by "all of Anonymous."

In the video manifesto that circulated widely on Tuesday, the speaker urged hacktivists to "join the cause and kill facebook [sic] for the sake of your own privacy."

Security specialists and media alike doubted the credibility of the video's source. The Twitter account "#OpFacebook" was created on July 16, the same day a YouTube account went alive showing the clip "Message from Anonymous: Operation Facebook, Nov 5 2011." Both accounts raised questions as to why new accounts were needed.

"The news around #Anonymous to attack #Facebook on Nov 5 most probably is fake," tweeted Eugene Kaspersky, an information security specialist.

Kaspersky warned web users to "pay attention to the strange Twitter name they used and links to websites with adverts."

Anonymous members, through several Twitter accounts, denied the group's involvement in the plan.

"TO PRESS: MEDIAS OF THE WORLD... STOP LYING! #OpFacebook is just ANOTHER FAKE! WE DONT "KILL" THE MESSENGER. THAT'S NOT OUR STYLE #Anonymous," tweeted @anonops this morning.

"Sabu," the alleged leader of the hacker group Anonymous followed the twitter thread by saying,

"ATTN Media: Don't get trolled by trolls pushing for #opFacebook. It simply does not exist. Even if we get 100,000,000 people to delete accts."

Later, AnonOps said in a Twitter feed,

"#OpFacebook is being organised by some Anons. This does not necessarily mean that all of #Anonymous agrees with it."

It seems there is a dissension among members of Anonymous, which has a loose structure with no central authority or spokesperson representing the group. The hackers also own a dozen Twitter and YouTube accounts, making it difficult to track their activities.

Whoever behind the Facebook Op apparently has a strong resentment against Facebook's privacy policy. 

"The riots are underway. It is not a battle over the future of privacy and publicity. It is a battle for choice and informed consent," said the video manifesto.

" It's unfolding because people are being raped, tickled, molested, and confused into doing things where they don't understand the consequences. Facebook keeps saying that it gives users choices, but that is completely false. It gives users the illusion of and hides the details away from them "for their own good" while they then make millions off of you. When a service is 'free,'  it really means they're making money off of you and your information."

The Nov. 5 date is Guy Fawkes Day, commemorating the day Fawkes was arrested in 1605 while guarding explosives beneath the British House of Lords in attempt to kill politicians and King James I. Fawkes has become a symbol to activists and those who oppose authority.

As a symbol for the group, Anonymous has adopted the Guy Fawkes mask, shown in "V for Vendetta."