VLC is a popular media player among BitTorrent users. Not just for the fact that it is free, also because it includes a huge number of the video codecs, so it can play virtually every video file available.
Unfortunately, the latest versions of VLC have a security flaw according to a report from Luigi Auriemma. The vulnerability can be exploited to compromise a user’s system, as it leaves it wide open for a malicious user to run arbitrary code.
http://secunia.com/advisories/28233/
and
http://torrentfreak.com/vlc-player-vuln ... ck-080318/