International Journal for Innovative Research in Science and Technology (IJIRST)
Big data is the one which is emerging in IT industry. As everyone knows, it is used to describe the massive data produced by various applications and systems. The database becomes so large and difficult to manage it. Normally the data is stored in petabyte, Exabyte and even zeta bytes. For decision making and accurate analysis these data's are much important for future usage. So, to protect these data against modification and theft, users need to go for big data security which is very essential. Many security challenges involved in big data such as lack of tools and storage for distributed data sets and processing analysis.