The Economics of Spam

Tennessee resident K. C. "Khan" Smith owes the internet service provider EarthLink $24 million. According to the CNN, in August 2001 he was slapped with a lawsuit accusing him of violating federal and state Racketeering Influenced and Corrupt Organizations (RICO) statutes, the federal Computer Fraud and Abuse Act of 1984, the federal Electronic Communications Privacy Act of 1986 and numerous other state laws. On July 19, 2002 - having failed to appear in court - the judge ruled against him. Mr. Smith is a spammer.

Brightmail, a vendor of e-mail filters and anti-spam applications warned that close to 5 million spam "attacks" or "bursts" occurred in June 2002 and that spam has mushroomed 450 percent since June 2001. This pace continued unabated well into the beginning of 2004 when the introduction of spam filters began to take effect. PC World concurs.

Between one half and three quarters of all e-mail messages are spam or UCE (Unsolicited Commercial Email) - unsolicited and intrusive commercial ads, mostly concerned with sex, scams, get rich quick schemes, financial services and products, and health articles of dubious provenance. The messages are sent from spoofed or fake e-mail addresses. Some spammers hack into unsecured servers - mainly in China and Korea - to relay their missives anonymously.

Starting in 2003, malicious hackers began using spam to install malware - such as viruses, adware, spyware, and Trojans - on the unprotected personal computers of less savvy users. They thus transform these computers into "zombies", organize them into spam-spewing "bots" (networks), and sell access to them to criminals on penumbral boards and forums all over the Net.

Spam is an industry. Mass e-mailers maintain lists of e-mail addresses, often "harvested" by spamware bots - specialized computer applications - from Web sites. These lists are rented out or sold to marketers who use bulk mail services. They come cheap - c. $100 for 10 million addresses. Bulk mailers provide servers and bandwidth, charging c. $300 per million messages sent.