Clouds provide a powerful computingplatformthatenablesindividuals and organizationsto performvariety levelsoftasks such as:use of online storage space,adoption of business applications,development ofcustomizedcomputersoftware,andcreation of a“realistic” network environment.Inpreviousyears,the number of people using cloud serviceshasdramatically increased and lots of datahasbeenstoredin cloud computing environments.In the meantime, data breaches to cloud servicesarealsoincreasingevery yeardue tohackerswhoarealwaystrying to exploitthesecurity vulnerabilities of thearchitecture of cloud. In this paper,threecloud service modelswere compared;cloud securityrisks andthreatswereinvestigated based on the nature ofthecloudservice models.Real world cloud attackswereincludedto demonstratethe techniques thathackersused against cloud computing systems.In addition,countermeasures to cloud security breachesare presente

<p>Cloud computing has sweeping impact on the human productivity. Today it’s used for Computing, Storage, Predictions and Intelligent Decision Making, among others. Intelligent Decision Making using Machine Learning has pushed for the Cloud Services to be even more fast, robust and accurate. Security remains one of the major concerns which affect the cloud computing growth however there exist various research challenges in cloud computing adoption such as lack of well managed service level agreement (SLA), frequent disconnections, resource scarcity, interoperability, privacy, and reliability. Tremendous amount of work still needs to be done to explore the security challenges arising due to widespread usage of cloud deployment using Containers. We also discuss Impact of Cloud Computing and Cloud Standards. Hence in this research paper, a detailed survey of cloud computing, concepts, architectural principles, key services, and implementation, design and deployment challenges of cloud computing are discussed in detail and important future research directions in the era of Machine Learning and Data Science have been identified.</p>

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The emergence of cloud computing has changed perception of all regarding software delivery, development models and infrastructure. Cloud computing has a potential of providing elastic, easily manageable, powerful and cost effective solutions. The rapid transition to cloud computing has fueled concerns on the security issues. The migration of the user’s data and applications in a shared environment of a cloud, where there is a collocation of several users increases security related concerns. Several research efforts have been made in evaluating challenges related to security faced by the cloud computing environments, a number of solutions of such problems have also been proposed. Integrated security solutions should be devised to deal with the increasing security risks. In this paper, a detailed cloud computing survey, key services and concepts are being presented.  This paper attempts to evaluate various security threats to cloud computing and a number of security solutions have also been discussed. Furthermore, a brief view of the cloud security regulatory bodies and compliance have also been presented. Despite the research efforts in cloud security field, there are still some open research problems and challenges which are discussed in this paper.