Christopher Weatherhead a.k.a Nerdo has been convicted in a London court on one count of conspiracy to impair the operation of computers under the 1977 Criminal Law Act. He was arrested in January 2011 in connection with "Operation Payback", a series of prolonged Distributed Denial of Service (DDoS) attacks that targeted PayPal, Visa, Mastercard and other web sites after they refused to process payments to Wikileaks. He is said to have coordinated the DDoS attacks through IRC chat rooms as the "communications manager" for a group of hackers belonging to the Anonymous collective, according to a report in The Guardian.