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Chernobyl Virus Melts Down PCs

April 26, 1999

The first known virus to target the flash BIOS of a PC, the CIH/Chernobyl Virus triggers on this day, erasing hard drives and disabling PCs primarily in Asia and Europe. One of the most destructive viruses in history, Turkey and South Korea alone report 300,000 infected systems (https://thisdayintechhistory.com/).