Hacker Group Anonymous Announces 'Biggest Operation' Against ISIS After Paris Attacks

Paris Attacks France Anonymous
The hacktivist group released the video following the Paris attacks warning ISIS of its biggest cyber operation ever. YouTube screenshot

Hacker group Anonymous declared "total war" on the Islamic State (ISIS) extremist group on Sunday following the wave of attacks in Paris that killed at least 129 people and left dozens more in a critical condition.

In a two-minute-long YouTube video posted by the group, a masked, French-speaking figure with a distorted voice is shown reading a statement. Clips from the attacks in Paris are shown in the video.

"War is declared. Get prepared," the masked figure says in the video. "The French people are stronger than you and will come out of this atrocity even stronger. Anonymous from all over the world will hunt you down. You should know that we will find you and we will not let you go. We will launch the biggest operation ever against you."

Make no mistake: #Anonymous is at war with #Daesh. We won't stop opposing #IslamicState. We're also better hackers. #OpISIS

— Anonymous (@GroupAnon) November 15, 2015

The hacker says that the infamous group will use its cyber skills to "unite humanity" and said that terrorists should "expect massive cyber attacks."

ISIS has yet to respond to Anonymous's declaration.

The escalation in Anonymous's operation against ISIS comes after at least seven suspected attackers carried out gun and bomb attacks against a number of civilian targets across the French capital, leaving 352 wounded and at least 99 in a critical condition. French police are continuing a manhunt for a man they believe took part in the attacks, identified as 26-year-old Salah Abdeslam.

Anonymous has targeted ISIS for a number of months; the group has revealed the Twitter accounts of ISIS members and hacked a number of ISIS sites. Foreign Policy estimates that Anonymous has dismantled at least 149 of the extremist group's affiliated websites, and flagged approximately 101,000 Twitter accounts and nearly 6,000 propaganda videos.

Anonymous's campaign against ISIS began after the extremist group's cyber wing hacked the Twitter account of U.S. CENTCOM in January, as well as the radical Islamist attacks on the Paris offices of satirical magazine Charlie Hebdo that same month.