Define virus, Hacker and cracker
Answers
Virus is a program that disrupts the normal working of a computer. It may cause little or severe damage, depending on it's nature.
A hacker is a person who gains access to a computer system or network without authorization.
A cracker is a person who breaks into someone else's system or network, bypasses passwords or other licenses in a program and intentionally breaches computer security. Cracker should not be confused with hacker, as a hacker may be on the legal side of the law, but a cracker is illegal.
Virus: A computer virus is a type of malicious software program(malware)
that ,when executed, repilcstes itself by modifying other computer programs indiserting its own code when its replication succeeds, the affected areas are then said to be infected with a computer virus