As businesses move toward cloud computing environments, security and privacy concerns become increasingly important. This research report systematically investigates various challenges and vulnerabilities in cloud computing, focusing on security and privacy issues. This study comprehensively examines potential threats, from data breaches to unauthorized access, and assesses the impact of these challenges on user trust and data integrity in cloud infrastructure. Additionally, effective strategies and solutions to reduce security risks and protect user privacy in cloud computing are proposed and discussed. This paper contributes to the ongoing debate on cloud security and privacy and provides both practitioners and researchers with a valuable resource for navigating the evolving landscape of cloud-based services.