Big data refers to the huge volume of data that is being produced by different organizations after every second. It is hard to handle the such volume of data, therefore this data is combined and managed through the servers of organizations using complex algorithms. Data is currently the most important asset of any organization in every field with which many operations can be performed. Big Data exerts different properties those are volume, velocity, veracity, and variety. Now there are different threats regarding the security of big data. Organizations are using different methods to secure big data. Big data security measures include architecture security, infrastructure security, and data privacy. In this paper multiple security concerns are discussed and how they can help organizations secure their data.