Cloud computing security is an extensive field of research with various concerns in many aspects. While the benefits of cloud computing and cloud services are easily noticeable, the privacy and security problems of this technology has always been concentrated on. This paper aim to identify the security issues and their solutions in using cloud computing services. And this would serve as a reference for anyone in need of an overview on the risks factors and possible solutions in a cloud environment. | A STUDY ON CLOUD COMPUTING SECURITY SVTH Đỗ Chí Bằng Nguyễn Thị Ninh Thuận GVHD ThS Hoàng Thị Kiều Hoa Tóm tắt - Bảo mật điện toán đám mây là một lĩnh vực nghiên cứu sâu rộng với nhiều mối quan tâm khác nhau ở nhiều khía cạnh. Trong khi lợi ích của điện toán đám mây và các dịch vụ đám mây có thể dễ dàng nhận thấy các vấn đề về quyền riêng tư và bảo mật của công nghệ này luôn được chú trọng. Bài báo này nhằm mục đích xác định các vấn đề bảo mật và giải pháp của chúng trong việc sử dụng các dịch vụ điện toán đám mây. Và đây sẽ là tài liệu tham khảo cho bất kỳ ai cần cái nhìn tổng quan về các yếu tố rủi ro và các giải pháp khả thi trong môi trường đám mây. Abstract - Cloud computing security is an extensive field of research with various concerns in many aspects. While the benefits of cloud computing and cloud services are easily noticeable the privacy and security problems of this technology has always been concentrated on. This paper aim to identify the security issues and their solutions in using cloud computing services. And this would serve as a reference for anyone in need of an overview on the risks factors and possible solutions in a cloud environment. Key words Privacy Cloud computing Cloud Consumer Cloud Service Provider Cloud User Security. I. Introduction about cloud computing security Since its popularization by Amazon s Elastic Computer Cloud EC2 in 2006 cloud computing has been heavily focused on and developed by many other information Enterprises such as Dell Microsoft Google During 2020 the COVID-19 pandemic has affected the cloud computing market exponentially. The demand for Software-as-a-Service SaaS surged due to the adaptation of work from home model in some enterprises. Video conferencing programs using cloud computing such as Google Hangouts Zoom WeChat Work Tencent Meeting Cisco Webex has experienced over three times in new user registration number Marketsandmarkets 2020 . Moreover streaming platforms such as Netflix Twitch Hulu Amazon .