Apple has disabled versions of Java it believes are vulnerable to attack, following a string of high profile attacks on the platform.
The company said that it had issued updates which would block the web plug-in versions of Java which have not received patches for recently-disclosed security vulnerabilities.
According to Apple, OS X users will no longer be able to run Java 6 versions prior to the update 41 release and Java 7 releases prior to update 15.
Users can obtain patches by downloading the most recent secure version of Java from the Apple OS X Software Update application.
The block is the latest in a series of measures taken by vendors to prevent the exploit of vulnerabilities in the browser plug-in platform. Earlier this week both Apple and Oracle issued updates to address zero-day flaws in Java which have been actively exploited in the wild.
Java has long been among the most popular targets for web exploits. Researchers with Kaspersky Lab ranked the platform alongside Adobe Reader and Microsoft Windows as the most popular targets for automated exploit kits.
The threat of Java exploits has become so severe that security firms have begun advocating that users and administrators disable the Java plug-in if at all possible. On systems where the Java plug-in is essential, researchers suggest users take mitigating measures such as using a separate browser to run trusted Java applications.
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