Published on Brock University (http://www.brocku.ca)
A critical security vulnerability in Java has been discovered and exploits have been found. The flaw affects all versions of Oracle’s Java 7 (version 1.7) up to update 10 on all operating systems. No patch is available at this time. All users should immediately disable the Java web browser plug-in.
Click on the following links to view instructions on how to disable java on your computer.
Google Chrome 
Instructions and further information are available at:
Users of the Java JDK should remove Java 1.7 from their systems.
For Macintosh users:
Java runtime is not installed on Mac OS X 10.7.x and Mac OS X 10.8.x by default.
If you have installed Java 7 on your computer and wish to remove it, please delete the file
For more complete instructions on how to remove Java see this document on Oracle's site:
and see the bottom section entitled "Uninstalling the JDK".