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    WikiLeaks controversy sparks cyber war

    Al Jazeera English

    by Al Jazeera English

    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.

    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.

    Al Jazeera's Paul Brennan reports from London.