Contents: Cyberspace: A Digital Ecosystem; An Analysis of Cloud Security Frameworks, Problems and Proposed Solutions; Cyber Security in IoT-Based Cloud Computing: A Comprehensive Survey; Artificial Intelligence in the Cyber Domain; Abuse of Cloud-Based and Public Legitimate Services as Command-and-Control (C&C) Infrastructure; Security in Cloud-Native Services; Performance Comparison and Current Challenges of Using Machine Learning Techniques in Cybersecurity