Question: what is the difference between a computer virus a worm and a trojan horse quizlet?
Answer: Worms are parasitic computer programs that replicate, but unlike viruses, do not infect other files. What is a Trojan horse? A Trojan horse is software that performs unexpected or unauthorized, often malicious, actions. The main difference between a Trojan horse and a virus is that Trojan horses do not replicate.