Cloud computing is a new standard provided that software and hardware resources according to the customers' needs. Security of data in cloud is one of the key challenges which acts as an obstacle in the implementation of cloud computing. In this paper included brief analysis on data security in cloud environment across global needs of data protection. The specific research gaps existing in implementation are identified and presented as challenges. The contribution of this review is that is presents an overview on data security analysis which will be more valuable for data protection in cloud environment.