As distributed computing becomes increasingly integral to various industries, ensuring robust data security has become a critical priority. This framework introduces a multi-layered security system tailored to enhance protection within cloud computing environments. The proposed solution adopts a comprehensive approach to address a wide spectrum of security threats, tackling both conventional concerns and emerging challenges associated with data sharing, storage, and access control. The system employs a combination of advanced encryption protocols, dynamic access control mechanisms, real-time threat detection, and proactive defense strategies to protect sensitive data. By prioritizing confidentiality, integrity, and availability, it mitigates risks such as unauthorized access, data breaches, and malicious activities. At its core, the framework leverages a defense-in-depth strategy, seamlessly integrating traditional security measures with cutting-edge technologies like identity management systems, behavioral anomaly detection, and adaptive threat response tools. Its scalable and modular design ensures compatibility with emerging security innovations, allowing it to remain resilient against evolving cyber threats. This analysis emphasizes the flexibility and effectiveness of the proposed multi-layered security system, illustrating its potential to enhance data protection in distributed computing. By fostering a more secure and reliable cloud environment, it supports the growing demand for safe, efficient, and trustworthy data management solutions for organizations and individuals alike.