It Can Play Music, Too

It has already rocked the music industry: is the iPod about to do the same to computer security? Apple shipped more than 6 million of the portable music players for the third quarter — seven times the volume for the same period a year earlier — but that's not music to everyone's ears. Corporate IT managers are increasingly concerned about the dangers posed by removable data storage devices, from iPods and memory sticks to digital cameras and PDAs.

Things could get worse still, with Motorola's iTunes-friendly cell phone expected to launch this week. Hooked up to company machines,...