Big data and big data analytics has been a trend setter in recent years. Unlike the traditional cause-effect analysis, big data analytics generate predictions based on huge volumes of data, using statistical tools and advanced computing techniques. An interesting case study on the use of big-data analytics was the prediction of a flu pandemic in the United States by simply analyzing Google search data. The spread of the disease was detected before any medical organization or national agency, simply on the basis of people frequently searching Google for the symptoms and remedy of flu. Big data analytics enables us to generate reliable analyses, even in the absence of clear links or causes. To know more read:http://www.forbes.com/sites/huawei/2015/02/24/how-do-big-data-analytics-enhance-network-security/