Cyber activists linked to Anonymous have called for escalating protests over the controversial CISPA cyber-security bill recently passed by the US Congress.

The cyber security legislation – which the Obama administration has vowed to veto – would effectively negate existing privacy laws by allowing companies to share user data with the government without a court order.

“To the citizens of the United States of America: We are Anonymous. This is a special emergency message regarding the status of the Cyber Intelligence Sharing and Protection Act,” a synthesized voice intoned in a video posted on You