As the development of technology, today people keep in touch with each other not only by cell phone, but also through email. When we open computer, we may find all kinds of message, some are important, they are sent from friends, while some are rubbish message, which are sent by the unknown ones. As we can get the message from all resources, we may be cheated any time. There are always some messages about ads in our emails, such as the car secure, some ads say you are the one who hits their luck, you can have the big prize if you give them some message they need. A lot of people get cheated, because they want to try to get the prize. When we read the email, we should take care of the fraud, never be greed, the fortune can’t fall from the sky, only we work for it.