There have been lots of talks in the media about the recent Flashback infection affecting Macs. At the last read, there were reportedly over 600,000 OS X machines infected with this malware. While it maybe useful to wait for a fix from Apple (they only said something about this malware the other day, weeks after it has been known to infect machines in the wild), Apple is not known to be very open about security issues, especially concerning IOS or Mac OS X.
Fortunately, there is one easy way this malware can be stopped, and that is by disabling Java in all your browsers. This should not affect your browsing experience, unless you specifically have to run Java Applets in your browser for some strange reason. I recommend you disable Java in Safari, Chrome and Firefox. Don’t hesitate.
While you’re at it, you should also update Flash Player. To be safe, go to adobe.com to download it.