When word leaked out about a week ago that Sony was using a copy-protection program to keep people from copying their music CDs, music lovers cried foul and security experts warned the XCP copy protection system could be hijacked by so-called Trojanhorseprograms.
And even though Microsoft has a feature in its Internet Explorer browser designed to steer users away from unknown and potentially untrustworthy software, about 5 percent of users ignore the warnings and download malicious Trojanhorseprograms anyway. via Microsoft: One in 14 downloads is malicious.