Intelligent Approach to Cyber Security provides details on the important cyber security threats and its mitigation and the influence of Machine Learning, Deep Learning and Blockchain technologies in the realm of cyber security. As the internet is a very open and unprotected method of communication, it has attracted numerous miscreants with nefarious purposes. These criminals have made repeated attempts to get information and misuse it. Hence, the number of cyber-attacks and cybercrimes has increased exponentially with the growth of high-speed internet users. Cyber security is a significant issue in this setting that needs in-depth research and analysis. The advent of technologies like Machine Learning, Deep Learning, Artificial Intelligence (AI) and blockchain have brought about a paradigm shift in the way security issues are handled. Incorporating these technologies in different aspects of cyber security has increased the robustness of various security mechanisms. Hence, the main aim of the book is to study the impact of these technologies on cyber security.