1. What is a botnet? Describe two uses of botnets.
2. In a study done in London, people in subway stations were offered a cheap pen in return for disclosing their passwords. About 90 percent offered their passwords in return for the pen. What can be done to get people to take security more seriously?

3. Kalamazoo College requires that all computers connected to the campus network be running up-to-date antivirus software. When a students computer is discovered to have a virus, its network connection is cut until a staff member can remove the virus. If it turns out that the computer was not running up-to-date antivirus software, the student is fined $100. Is this a morally justifiable policy?