This book features peer-reviewed papers from the International Conference on Recent Developments in Cyber Security, organized by the Center for Cyber Security and Cryptology. It focuses on key topics such as information privacy and secrecy, cryptography, cyber threat intelligence and mitigation, cyber-physical systems, quantum cryptography, and blockchain technologies and their applications. This volume is a unique collection of chapters from various disciplines united by a common theme, making it immensely valuable for both academic researchers and industry practitioners.