Spammers make their living finding email addresses from the Internet, off mailing lists, and by hacking in to computer databases. They also spend time trying to get passed spam blockers that could potentially cause them to lose money. Since these filters have become more sophisticated, spammers have had to invent new ways to send email and make sure it reaches its destination. Spammers sell products, subscriptions, as well as steal personal information and spread viruses. They used to earn more money, but thanks to spam blockers, savy Internet users, and new laws, spamming has lost its appeal for many and also caused those who linger to lose lots in potential profits.