I had questions about the Homeland Security versus Oracle - Java issue. It boils down to do you have the latest version of Java - and have you updated Java browser extensions.
I do use Norton security products (and recommend them) and was interested to see an email from Symantec come across my desk with the following information -
"You may have recently seen some of the extensive news coverage, including statements from the United States Department of Homeland Security, regarding a vulnerability in Java. Java is both a language and a platform to run websites and programs used by many computer users, both on the PC and Mac operating systems. This vulnerability leaves millions of computers open to malware attacks and can lure online traffic to virus-infected websites.
Rest assured, because you have a Norton security software product installed on your computer, you’re protected against the Java bug (CVE-2013-0422), as long as you have not disabled the automatic updates feature.
The Norton Team
Learn more about Java Zero-Day vulnerability
Should you not have a Symantec/Norton product, you may want to check on the state of your installed Java software and browser add-ons. You can use the links above to get more secure with the security patch and the latest versions of Java.