1. Phishing-a program that can be designed to steal personal information from your computer

1. 
   1.Phishing-a program that can be designed to steal personal information from your computer
   

2. Spam-advertising emails

3. Spyware-a program that is hidden and can be used to get information

about users’ online buying habit

4.   Trojan horse-a program that steals money by tricking people into giving away personal information

5.  Virus-a hidden program that can destroy data

2. 1. Many people do not back up their computer files, so they lose a lot of data.

2. Many users don’t empty their mailboxes, as a result they may have problems downloading their mail.

3. Many people install an anti-virus program, because there is a serious threat from viruses.

4. Many employees do not know how to use basic programs effectively, consequently  many companies offer IT training .

5. Manufacturers put in secret codes to detect copies since people use copies of programs.