Secunia PSI warns all users about being less careful about the installed programs on their computers. A lot of users are running polder releases of f.e. PDF readers, picture viewers etc.

QUOTE
Secunia PSI makes recommendations on safe browsing

Version 1.0.0.5, now in beta, of the Secunia software update tool – Personal Software Inspector (PSI), not only checks installed software for updates, but even advises users against using specific browsers. The "Not safe for browsing" evaluation is displayed for browsers when browsers or browser add-ons containing known serious security vulnerabilities are installed.

More:
http://www.h-online.com/security/Secunia-P...g--/news/113404