Using peer-to-peer software to share music, movies and other copyright-protected files across the network may violate University policy and could result in legal action.
USB flash drives (thumb drives), external hard drives and even DVD's can be used to spread a computer virus or malware. If you are going to connect a drive to your computer or pop in a DVD, wait until your computer is started, you are logged in and you are certain your anti-virus software is running before plugging in the drive. Be certain to unplug the drive or eject the disc when you are done.
This may help you avoid catching that bug hiding out in the drive.