Some may say yes, some may say no..Personally, my response is yes, and be sure you are securly protected against them. Limewire itself is not responsible for these, but any who download files for any to use, are...If someone dowloads a file, whether on purpose or not, that we upload, and contains a virus, then yes, it most certainly can infect your computer. I have personally have had two trojins that have fortunatly been caught...your only safegaurd is to have a good virus protection software program.