Abstract: “Cloud computing is a model to provide on‐demand network, software and hardware resources to customers. It provides the infrastructure, storage and virtualization environment to end‐users without vendor’s interventions. The purpose of cloud computing is to provide as‐a‐service model to users. Usually Cloud suffers from various levels of risks because essential services are normally outsourced to third party. This makes very difficult for cloud vendors to maintain data privacy and providing failure free service availability. Cloud network requires a major review on security challenges. Inside cloud, it is difficult to locate the original data and sometimes the security processes are hidden behind the layers. The end user is not capable to see the ill effects of clouds while using its services. This paper presents the various scenarios of breaching the cloud security, its impact for the real world users, challenges & resolutions in cloud network. The paper discusses the risks involved dur”

Keywords: Cloud Security Framework, Cloud Models, Data Center, Private/Public/Hybrid clouds