The objective is to publish both disciplinary, multidisciplinary and interdisciplinary works on questions related to experiences and phenomena that can or could be covered by concepts regarding the protection of privacy of web services users. Another major objective of this book is to highlight the importance of web search privacy to the readers and educate them about the recent developments. Privacy is a fundamental right, essential to autonomy and the protection of human dignity, serving as the foundation upon which many other human rights are built. Privacy is a fundamental right, essential to autonomy and the protection of human dignity, serving as the foundation upon which many other human rights are built. Privacy is a meaningful way we seek to protect ourselves and society against arbitrary and unjustified use of power by reducing what can be known about us and what has been done to us while protecting us from others who may wish to exert control. This book will help students and the research community understand the current status of privacy-aware web search mechanisms and help identify new challenges in the areas. This book has hot topics related to web privacy such as AI-based intrusion detection, desktop search engines, privacy risks, data leakage, web applications testing, secure cloud-based manufacturing, the status of user privacy in IoT, and GDPR for personal data protection.