This report delves into the critical aspects of cloud computing security and privacy, examining the features and benefits cloud computing offers, such as on-demand self-service, scalable architecture, and efficient storage. It discusses the three types of data stored in the cloud: data in transit, data at rest, and data at processing. The report emphasizes the importance of securing data through encryption, strong authentication, and data integrity, referencing TrueCrypt software as an example. It also covers key features of cloud data security, including authentication, provider and user encryption, data integrity implementation, fast data recovery, and key management. The report addresses challenges faced by cloud environments, such as DDoS attacks, data breaches, and human error, while also providing recommendations for enhancing security and privacy, such as avoiding sensitive data storage and using strong passwords. The report concludes with a broad overview of technologies, applications, controls, and policies aimed at protecting cloud-stored data, referencing relevant academic papers.