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A remote code execution exploit in Internet Explorer 6, 7 and 8 was discovered in December, for which Microsoft has yet to release an official security update addressing the issue. It is recommended to upgrade to Internet Explorer 9 or 10 immediately. For Windows XP users who cannot upgrade, either install another browser such as Mozilla Firefox or Google Chrome, or install a temporary Microsoft “Fix It” solution until a full security update is ready.
Big Data is a term used to describe very large, vast and complex data sets. Such data sets are so large that they cannot be contained in a traditional database on a single computer, but rather are managed and stored across multiple systems in a distributed database computing environment. Some examples include the Google search index, and Facebook's database of user profile information.