http://www.ghacks.net/2011/07/10/how-secure-are-you-on-the-internet/
How Secure Are You On The Internet?
Microsoft has improved the security of it considerably, thanks to automatic updates and additional free security tools.
Lets assume you have got your browser updated to the latest version, and that you generally update the application immediately when a new version comes out. You are secure now, right? Nope, you are not. Why? Because it is not only about the browser software. Browsers make automatic use of other applications, commonly called plugins. Popular plugins like Adobe Flash, Microsoft Silverlight or Java are attack vectors as well, and successful ones too.
