Julian Assange, the founder of WikiLeaks, may now be sitting in a UK prison, but it has not stopped his website and supporters from causing more chaos and controversy.<br /><br />One of the world's biggest credit card websites, Mastercard, has been hacked in what appears to be a revenge attack for blocking donations to WikiLeaks, along with a number of other sites that have recently distanced themselves from the whistleblowing website.<br /><br />Al Jazeera's Paul Brennan reports from London.
