Dennis Michael Moran (December 27, 1982 - April 14, 2013), also known by his alias Coolio, was 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 17 years old when he committed the attacks.
He was later arrested and pleaded 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.