On this day, 27 years ago, November 2, 1998 (September 14, 1998, the lunar calendar), a "worm computer virus" incident occurred in the United States. On November 2, 1998, a "worm computer virus" incident occurred in the United States, which cast a shadow over the development of computer technology. The worm computer virus was written by Morris, a graduate student at CORNELL University in the United States. Although there was no malicious intent, at that time, the "worm" spread extensively on the Internet, causing thousands of computers connected to the Internet to stop running and causing huge losses, making it a temporary focus of public opinion. More than 6000 computers in the United States have been infected by computer viruses, causing the Internet to fail to function properly. This typical incident of computer virus invading computer networks forced the U.S. government to respond immediately, and the Department of Defense established a computer emergency action team. Those attacked in this incident included five computer centers and 250,000 computers with government contracts. In this computer virus incident, the direct economic loss to the computer system reached US$96 million. This computer virus is the first computer virus in history to spread through the Internet. Its designer, Robert Morris, took advantage of the weaknesses in the system to write the largest electronic intruder to invade the Arpanet network, allowing him to participate in the Cornell University graduation project and gain the privilege of being a superuser at Harvard University's Aiken Center. As a result, he was sentenced to three years 'probation, fined US$10,000, and ordered to serve in the new district for 400 hours, becoming the first person in history to be legally punished for creating a computer virus, thus opening a new page in the world to solve the computer virus problem through legal means. Comment: Maybe you have seen what a virus looks like under a microscope, but in a "virtual" world like a computer, have you seen what a computer virus looks like?