An anonymous reader writes "A new Internet worm wriggled across the entire Internet in the span of a few hours Saturday morning to all computers running several recent versions of firewall software from Internet Security Systems, including BlackICE and RealSecure, according to this story at Washingtonpost.com. The flaw that Witty exploited was discovered Wednesday by eEye Digital Security. The worm overwrites data on the first few sectors of the victim's hard drive, making the machine virtually ubootable and potentially destroying much - if not all - of the victim's data." Update: 03/21 02:18 GMT by T : Reader Jeff Horning points out that eEye actually disovered the worm on the 8th of March, and came up with a fix the next day.
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