Java, the popular OS-independent platform and programming language, runs on just about every kind of electronic device imaginable, including computers, cell phones, printers, TVs, DVDs, home security systems, automated teller machines, navigation systems, games and medical devices.

In response to successful Java-based exploits against companies like Twitter, Facebook, Apple and Microsoft, and continued concern over "zero-day" security flaws that could allow an attacker to remotely execute malicious code that could compromise vulnerable systems., the U.S. Department of Homeland Security's Computer Emergency Readiness Team (CERT) has issued multiple security advisories concerning Java.

In the advisories issued to date, DHS recommends disabling Java in web browsers. In response, Oracle, which took over Java when it bought Sun, has released a number of patches, some out-of-band (earlier than scheduled), and in a recent patch made changes to how Java applets are handled within web browsers.  

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