The Washington Post, among other news agencies is reporting a "severe" security flaw that affects Microsoft Windows 98 - XP. According to the article, the flaw allows computer virus and spyware manufacturers to disribute malicious programs designd to take control of affected computers.
Macintosh and Linux users are immune to the problem, even those computers that operate Microsoft Software. The issue is a core Windows problem that has not been addressed since Windows 98.
Feel free to read the article at: http://www.washingtonpost.com/wp-dyn/content/article/2005/12/29/AR2005122901456.html
Unfortunately, due to limited time, your author (me) has not had the chance to track down and determine what the "official" name of the flaw is, nor been able to nail down Microsoft's response to the problem. I encourage readers to post via comments the latest information on the situation, to help those affected survive the situation.