has released a Java update
aimed at removing the most common variants of the Flashback Trojan
, which has infected over 600,000 Mac computers. The Java update plugs the hole that has been exploited by the malware and disables the automatic execution of java applets. The update is available from the Apple website. It is recommended that all Mac owners who have Java installed should download this update
The Flashback Trojan entered systems from infected websites and prompted people to download a browser plug-in. Mac users have rarely been the targets of malware historically and seem to be more likely to download prompted plug-ins than PC users. Trojans can steal information from computers or use them as part of a botnet to attack servers, so as Mac computers become more popular it can be more valuable for writers of malicious software to target these users.