This report provides an in-depth analysis of IT security within the realm of cloud computing. It begins by highlighting the increasing integration of cloud computing in the IT landscape and the associated security challenges, with a particular emphasis on data protection. The report then delves into various security issues, including external attacks like DDoS, man-in-the-middle attacks, and data breaches. It further examines several security techniques, such as authentication, confidentiality through encryption, access control mechanisms, and authorization protocols. The analysis section evaluates these techniques, emphasizing the importance of authentication and encryption for maintaining data security. The report also suggests recommendations for strengthening cloud security, including regular security audits, strong password policies, and the use of commercial wireless tools. Additionally, it highlights the importance of data backups and the implementation of intrusion prevention systems. The conclusion underscores the significance of these security measures in safeguarding user data and maintaining trust in cloud computing services.