Oracle has posted a Java Patch update which is said to resolve the Malware issue which was affecting Apple Mac computers. Apple Mac Users, especially those running Lion or newer OS, should download the Java Update Patch. Those using an Operating System prior to Lion OS, I believe should also be able to get an update from Apple. It is my understanding (but I could be incorrect) that with the release of Lion OS, Apple’s support of Java changed.
You can get to Oracle’s D/L page for the Feb 19th patch by CLICKING HERE
Official Apple Support updates on this can be found by CLICKING HERE (HT5651) and also CLICKING HERE (HT1222).
In addition to the above, plse do a Google Search on “Apple Mac Java 2013 Malware” to learn more.