According to the Metropolitan Police’s website, the arrests stem from an ongoing investigation into the recent DDoS attacks that occurred after the fallout of the arrest of WikiLeaks’ leader Julian Assange. Various companies refused to host WikiLeaks, and the site has been perpetually blocked since its release of classified U.S. cables. In response, a group of “hactivists” who call themselves Anonymous, issued repeated attacks on WikiLeaks’ opponents, including the likes of Visa, Mastercard, PayPal, and Amazon, to varying success.
Anonymous claims to be a leaderless organization without an established hierarchy. Authorities worldwide have been investigating the group for its responsibility in the recent bout of Web attacks, which, to date, has led to arrests in the Netherlands.
The group is being targeted stateside as well. Less than a month ago we learned that the FBI was attempting to trace ISP addresses to the DDoS attacks, that it had seized several hard drives. Twitter was also subpoenaed to hand over user information regarding WikiLeaks, which possibly could have related to members of Anonymous using the site to coordinate its attacks.