The book "Global Security, Safety and Sustainability: The Security Challenges of the Connected World" is a collection of revised contributions from the 11th International Conference on Global Security, Safety, and Sustainability, which took place in January 2017 in London. It includes 32 carefully selected and peer-reviewed full texts that emerged from 74 submitted papers. The contributions are organized into thematic sections addressing various aspects of digital forensics, cyber intelligence, the management of information security systems, as well as the security and sustainability of systems. This academic book offers valuable insights into the challenges and solutions in the realm of the connected world and serves as an important resource for professionals and students in the fields of technology and IT.