Warning of The Day: Anonymous Declares War on ISIS After Paris Attacks

Anonymous has declared war on ISIS.

The global hacktivist collective released a chilling video Saturday where they threaten terrorist organization ISIS (or Daesh) in retribution for horrible attacks carried out last week in Paris.

A series of bombings and armed attacks linked to ISIS killed 129 people.

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

"Anonymous from all over the world will hunt you down," a masked spokesperson says in French.

"You should know that we will find you and we will not let you go. We will launch the biggest operation ever against you."

Anonymous is promising to take down any websites with ISIS propaganda and make their Internet lives hell.

This will be the group's "biggest operation ever"