Data Security Issues in Cloud Computing

Cloud computing is an enticing technology which is a combination of many existing technologies such as parallel computing, grid computing, distributed computing and others. It offers services like data storage, computing power, shared resources at low cost to its users over internet at anytime from anywhere. Costing model on cloud computing is based on pay as you go method, hence companies are saving millions by adopting this technology. As more and more individuals and companies are relying on cloud for their data, the question arises here is how secure cloud environment is? Though cloud computing has many advantages, it also have some security problems. Data security issue is the major concern in cloud computing because after shifting clients data to cloud, service provider is responsible for the security and privacy of data. Hence data security issue is the major challenge which is hampering the growth of cloud computing and therefore it is needed to be resolved in order to make it widely acceptable and to accelerate its growth. In this paper data security problems of cloud are discussed. Here we presented an overview of cloud computing, its benefits and data security challenges in cloud computing model.