A. Chen Ing-hau- He was the author of the CIH virus. This virus infected millions of computers.

John Draper-He was the son of a U.S. Air Force engineer. His nickname was Captain Crunch Crunch.

B. Phone Phreak- is a word to describe the activity of a subculture of people who study, experiment with, or explore telecommunication systems.

Rootkit- This is a program made to take fundamental control.

C. Iloveyou virus is written by Chris Moon, It relied on social engineering entice users to open the e-mail and ensure its continued propagation, it began in the Philippines may 4ht, 2000.