Anonymous is preparing to launch a wave of cyber attacks against the Islamic state after the attacks in Paris last week that left 129 dead, he said in a video posted on the internet hacker group.
A man with Guy Fawkes mask said members of the Islamic State, the responsibility for the attacks in Paris claimed, were "parasites" and that Anonymous would pursue.
"These attacks can not go unpunished," the man said in French in the video.
"We will launch the largest operation has been launched against you. Expect many cyber attacks. It has declared war. Get ready, "the man said, without giving details about the attacks. "I do not forgive or forget."
Anonymous is an international network of cyber activists claimed many attacks on the internet.
Reuters