A short article in PCMag.com cites proof for something that many have long feared/ suspected/ already concluded: The P2P filesharing networks are becoming breeding grounds for viruses, trojan horses and backdoors.
In a study by ICSA Labs, a division of Tru Secure, 45 percent of files downloaded through KaZaA contained malware.  ICSA predicts a significant increase in the amount of these malicious “gifts” deposited on filesharing networks during 2004.
Businesses everywhere need to remind employees about the risks of downloading from P2P networks. Smaller businesses are especially at risk, because they frequently lack the IT staff to stay on top of security measures the way larger companies do. It surprises me how many businesses still don’t take adequate preventive steps to practice “safe computing,” even in this day and age when malware is, unfortunately, old hat.