If these viruses are so damaging, why do people allow them to infiltrate their computers? Because people are tricked into it. Viruses are sent attached to email message. These emails use a variety of her tricks to fool the reader into opening up the attachment. For example, some of these emails are designed to appeal to people’s emotions. The “I LOVE YOU” virus included an attachment titled “Love-Letter-For-You. Text.vbs.”Users, thinking they had been sent a love letter, opened the file, instantly releasing a virus and infecting their computer. Another common virus disguised as a personal message is “Koob” is spread through messages sent through social networking sites. The emails have subject lines like, “You look so amazing and funny on our new video.” When users try to download the “video,” what they really get is a virus.