Question

A software program installed without the user's knowledge and designed to alter the way a computer operates or to cause harm to the system is called _________

Answer 1

Answer:

The correct answer for the given question is "Computer virus"

Explanation:

A computer virus is a software program that is installed automatically without user's knowledge and designed to duplicate itself .The main purpose of computer virus is to harm the computer system.

Some of the points regarding computer virus

1.The computer virus contain malicious software Which harm the computer system.

2.It damage the  computer computer system in such away that sometimes users will unable to access some certain functionality of computer system.