Dynamic big data is an emerging concept which denotes the large amount of data and its dynamic processing for analysis. It helps many organizations to easily predict the behavior of market which is helpful for their success in business. They are entering into the age of “Dynamic big data”. Dynamic big data is the fastest processing of data, accumulated from various sources which give immediate result after the analysis. Security in big data is developing at a rapid pace which includes information security, data privacy, protecting data, applications and the related infrastructure with the help of policies, technologies, controls and big data tools.