New Java 7 exploit discovered! - Patch available now.
http://dottech.org/windows/77807/new-java-7-exploit-allows-hackers-to-install-malware-on-windows-mac-os-x-and-linux-only-fix-currently-is-to-disable-java/
New Java 7 exploit allows hackers to install malware on Windows, Mac OS X, and Linux; only fix currently is to disable Java.
Read about it here :-