1. Why is it hard to determine how big the Internet is today? Give several reasons.

2. Why are TCP/IP protocols so important to the functioning of the Internet? What do they do?

3. Give some examples of how spoofing or other types of social engineering might be used by computer criminals.

4. Describe several things you can do to protect yourself from identity theft.

5. Some virus creators claim that theyre providing a valuable service to society by pointing out security holes in systems. Do you accept this argument? Why or why not?

6. For one or more of these accounts, try changing your password. Will the system let you change your password to a common word such as love or fish? Does the system set a minimum number of characters for passwords? Are you allowed to have a letters-only password, or are you required to include non-alphabetic characters? How do the password security requirements compare?