"If you're still using Java, now is a good time to disable it," warns Jim Hamm. See this article: http://arstechnica.com/security/2013/01/critical-java-zero-day-bug-is-being-massively-exploited-in-the-wild/
The fix is to disable Java in your web-browser. Here Jim explains, "NOT 'java script' just 'java' — they are two separate check boxes, as they are two separate things."
You'll note this article is dated today, 1-10-13, and there are already 76 comments.