Abstract-While studying the various papers , I had gone through various methods and techniques adopted by author in securing the Big data.With the recent development in technology, networking and cost reduction in the storage devices, today we are flooded with the huge amount of data. Big Data analysis is now used in almost every state of our society, marketing, communication services, banking , research etc. The big data phase has shown the ways for many huge opportunities in the field of science, economic decision, educational system,healthcare system and novel forms of the public interaction and entertainment. But these opportunities also results into challenges in the area of privacy and security. Big data uses huge quantity of data that may be available in the cloud and it may require data processing distributed across the numerous servers. It is found that the development progress of big data also intensified and gave birth to the threats to the field of information security. This paper focuses on the big data and various privacy issues related to it.