Malware is software that is intentionally malicious, in the sense that it is designed to do damage or break the security of a system. Malware comes in many familiar varieties, including viruses,...

Malware is software that is intentionally malicious, in the sense that it is designed to do damage or break the security of a system. Malware comes in many familiar varieties, including viruses, worms, and Trojans.

a. Has your computer ever been infected with malware? If so, what did the malware do and how did you get rid of the problem? If not, why have you been so lucky?

b. In the past, most malware was designed to annoy users. Today, it is often claimed that most malware is written for profit. How could malware possibly be profitable?