The dark angels of antisecurity, hacker collective Anonymous, have set eyes on Facebook for its alleged large-scale security violations and sell-off of private individuals' data to government agencies.

The hackers have said they will do 750 million Facebook users a "a favor" by killing the social networking site. The hacktivists have planned to hit the site on Nov. 5, the day Britain commemorates the foiling of an attempt by Guy Fawkes to help blow up King James I and Parliament in 1605 in a bid to restore a Catholic monarch to the throne.

Facebook hasn't yet responded to the hackers' claims. It is also unclear if the message posted on behalf of Anonymous is real or fake.

"Your medium of communication you all so dearly adore will be destroyed," the hackers warned Facebook in a YouTube video.

"If you are a willing hacktivist or a guy who just wants to protect the freedom of information, then join the cause and kill facebook for the sake of your own privacy."

In recent months, Facebook has faced criticism about its privacy-related policies. In May, a Senate panel questioned Facebook executives for allegedly failing to prevent underage people from having access to the network. Security software company Symantec also has said third-parties like advertisers had access to sensitive data of millions of Facebook users for years.

"Everything you do on Facebook stays on Facebook regardless of your 'privacy' settings, and deleting your account is impossible, even if you 'delete' your account, all your personal info stays on Facebook and can be recovered at any time," the post read.

Facebook has denied there was any security breach, saying no private information could have been passed to third parties. The site also said the Symantec report had ignored contractual obligations of advertisers and developers that prohibit them from obtaining or sharing user information in a way that violates its policies.

In June, European regulators said they were checking whether the tagging of photos on Facebook was in breach of privacy laws.

Must Read: Anonymous Threatens to Slash Facebook on Nov. 5