Dennis M. Moran (born 1982 in Massachusetts, United States), also known as Coolio, is an American computer hacker from Wolfeboro, New Hampshire, who was accused in February 2000 of a series of denial-of-service attacks that shut down some of the most popular websites on the Internet. He was later arrested and pled guilty to defacing the websites of DARE and RSA Security, as well as unauthorized access of the U.S. Army and Air Force computer systems at four military bases.
