Anonymous declares war on Islamic State after Paris attacks in chilling video: 'We will hunt you down'

Hacker group Anonymous have declared war against ISIS after the attacks in Paris on Friday night.

Posting a video on YouTube, the group said it would use its knowledge to "unite humanity" and warned the terrorists to "expect us".

Behind their signature mask, a spokesperson said: "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. Full story...

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