Cloud computing has gained huge attention over the past decades because of continuously increasing demands. There are several advantages to organizations moving toward cloud-based data storage solutions. These include simplified IT infrastructure and management, remote access from effectively anywhere in the world with a stable Internet connection and the cost efficiencies that cloud computing can bring. The associated security and privacy challenges in cloud require further exploration. Researchers from academia, industry, and standards organizations have provided potential solutions to these challenges in the previously published studies. The narrative review presented in this survey provides cloud security issues and requirements, identified threats, and known vulnerabilities. In fact, this work aims to analyze the different components of cloud computing as well as present security and privacy problems that these systems face. Moreover, this work presents new classification of recent security solutions that exist in this area. Additionally, this survey introduced various types of security threats which are threatening cloud computing services and also discussed open issues and propose future directions. This paper will focus and explore a detailed knowledge about the security challenges that are faced by cloud entities such as cloud service provider, the data owner, and cloud user.

中文翻译：

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云计算安全挑战调查：问题、威胁和解决方案

由于需求不断增加，云计算在过去几十年中获得了巨大的关注。转向基于云的数据存储解决方案的组织有几个优势。其中包括简化的 IT 基础设施和管理、从世界任何地方通过稳定的互联网连接进行有效的远程访问，以及云计算可以带来的成本效益。云中相关的安全和隐私挑战需要进一步探索。来自学术界、工业界和标准组织的研究人员在先前发表的研究中为这些挑战提供了潜在的解决方案。本调查中提供的叙述性审查提供了云安全问题和要求、已识别的威胁和已知漏洞。实际上，这项工作旨在分析云计算的不同组件以及这些系统面临的当前安全和隐私问题。此外，这项工作提出了该领域存在的最新安全解决方案的新分类。此外，本次调查还介绍了威胁云计算服务的各种类型的安全威胁，还讨论了未解决的问题并提出了未来的方向。本文将重点和探索有关云实体（例如云服务提供商、数据所有者和云用户）面临的安全挑战的详细知识。本次调查介绍了威胁云计算服务的各种类型的安全威胁，还讨论了未解决的问题并提出了未来的方向。本文将重点和探索有关云实体（例如云服务提供商、数据所有者和云用户）面临的安全挑战的详细知识。该调查介绍了威胁云计算服务的各种类型的安全威胁，还讨论了未解决的问题并提出了未来的方向。本文将重点和探索有关云实体（例如云服务提供商、数据所有者和云用户）面临的安全挑战的详细知识。