MafiaBoy (Mike Calce) was the Internet alias of a high school student from the upscale area of The West Island in Montreal, Canada who launched a series of highly publicized denial-of-service attacks in February 2000 against large commercial websites including Yahoo!, Amazon.com, Dell, Inc., E*TRADE, eBay, and CNN. Canada's Youth Criminal Justice Act forbids Canadian news outlets from publication of MafiaBoy's real name in connection with this incident. Wikipedia
The definitive Wikipedia entry for Mafiaboy. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/MafiaBoy