(2012) NEW YORK (CNNMoney) -- Anonymous has struck again. In the hacktivist group's biggest attack to date, thousands of people teamed up and temporarily blocked access to the websites of the U.S. Department of Justice, the FBI, the Copyright Office, the Motion Picture Association, the Recording Industry Association, and several other music industry sites on Thursday. The attack came in retaliation for the DOJ's shuttering of Megaupload, a popular content site that hosted a large collection of pirated media.
http://money.cnn.com/2012/01/20/technology/anonymous_hack/index.htm