New arrest over Anonymous' pro-WikiLeaks attacks 15 Apr 2011 Police have made a sixth arrest in their investigation of Anonymous, the online activist collective that launched a series of cyber attacks on major firms it saw as anti-WikiLeaks. The new suspect, a 22-year-old man from Cleveland, was questioned by specialist computer crime detectives at a local police station on Wednesday last week. They are suspected of involvement in cyber attacks on the websites of Amazon, Bank of America, Mastercard, PayPal and Visa in December.