In today's fast-paced digital landscape, cloud-based information systems are pivotal for modern enterprises. This study provides an in-depth exploration of strategies to safeguard data and ensure regulatory compliance in cloud environments. Key approaches such as encryption algorithms, advanced access control systems, identity management solutions, and comprehensive security frameworks are thoroughly evaluated, highlighting both their technical intricacies and effectiveness. The research also addresses the complex challenges of regulatory compliance, presenting real-world scenarios that underscore the risks and hurdles in achieving and sustaining adherence to various regulations. By analyzing successful case studies, the study sheds light on the practical benefits and limitations of these security measures. Furthermore, it explores emerging technologies poised to shape the future of cloud security and compliance. The findings offer technical professionals, security experts, and IT managers critical insights into protecting sensitive data while navigating the evolving regulatory landscape in cloud-based environments.