The book "Cyber Space Saving in Cloud" explores and elucidate the crucial role of cloud computing in addressing contemporary cybersecurity challenges while emphasizing its potential for optimizing resources and enhancing overall security posture. In a rapidly evolving digital landscape, where cyber threats continue to proliferate, understanding the intersection of cloud technology and cybersecurity becomes paramount. The primary objective of the book is to underscore how cloud computing can serve as a robust solution for safeguarding sensitive data and mitigating cyber risks. It explores the ways in which cloud infrastructure, with its advanced security features and scalable architecture, contributes to cyber space savings. By leveraging the cloud, organizations can consolidate their cybersecurity efforts, streamline operations, and achieve cost efficiencies. The book offers real-world case studies and success stories where cloud-based security measures have proven effective in thwarting cyber threats, reducing vulnerabilities, and saving valuable resources. The book aims to guide decision-makers, IT professionals, and cybersecurity experts in making informed choices about embracing cloud technology to fortify their defense against cyber threats.