Fourth, the Java Security Manager, which provides support for running applets by sandboxing untrusted downloaded code, will be removed with the JDK 24 release in March.

Multiple vulnerabilities existed in Java 1.6.0_51, the most serious of which may allow an untrusted Java applet to execute arbitrary code outside the Java sandbox.

Description: Multiple vulnerabilities existed in Java 1.6.0_51, the most serious of which may allow an untrusted Java applet to execute arbitrary code outside the Java sandbox. Visiting a web page ...

Further pushing toward the idea of a plugin-free internet, Apple has issued an update to Java for OS X that removes the Java applet plugin.