Digital privacy is often used in contexts that promote advocacy on behalf of individual and consumer privacy rights in e-services and is typically used in opposition to the business practices of many e-marketers, businesses, and companies to collect and use such information and data. Digital privacy, a crucial aspect of modern online interactions and services, can be defined under three sub-related categories: information privacy, communication privacy, and individual privacy.

In the present book, nine typical literatures about digital privacy published on international authoritative journals were selected to introduce the worldwide newest progress, which contains reviews or original researches on digital privacy. We hope this book can demonstrate advances in digital privacy as well as give references to the researchers, students and other related people.