In California Viruses writing by student

In a windowless underground computer lab in California, young men are busy cooking up viruses, spam and other plagues of the computer age. Grant Joy runs a program that surreptitiously records every keystroke on his machine, including user names, passwords, and credit-card numbers. Thomas Fynan floods a bulletin board with huge messages from fake users. Yet Joy and Fynan aren't hackers — they're students in a computer-security class at Sonoma State University. Their professor, George Ledin, has showed them how to penetrate even the best antivirus software