Microsoft's Michael Jackson problem: Redmond issues an alert

It's no secret that hackers use the Internet to break into computers and steal information. BusinessWeek, for example, has reported on thieves in Asia and Europe that penetrate U.S. networks over the Internet and steal secret information on satellites, rocket engines and even the Space shuttle. Such break-ins are far more than a nuisance -- they threaten our national security.

More recently, cyber criminals have been sending out an email, with the subject line 'Remembering Michael Jackson.' The email goes on to say that there is an attachment; a file containing secret songs and photos of Jackson. But when you open the file, a worm infiltrates your computer and it then spreads on to other Internet users.