The student reportedly participated in numerous hacking attacks that were affected companies including PayPal, MasterCard and Visa following their decision not to process Wikileaks decisions anymore.
Christopher Weatherhead, who considers himself a "hacktivist", and now faces up to 10 years in prison, along with three others who had pleaded guilty to the same charges in January and March.
The group struck their targets with denial-of-service attacks, causing a claimed damage of a total of $5.6 million, according to prosecutors. There was no information when Weatherhead would be sentenced.
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