This book constitutes the proceedings of the 4th International Conference on Human Aspects of
Information Security Privacy and Trust HAS 2016 held as part of the 18th International
Conference on Human-Computer Interaction HCII 2016 held in Toronto ON Canada in July 2016
and received a total of 4354 submissions of which 1287 papers were accepted for publication
after a careful reviewing process. These papers address the latest research and development
efforts and highlight the human aspects of design and use of computing systems. The papers
thoroughly cover the entire field of Human-Computer Interaction addressing major advances in
knowledge and effective use of computers in a variety of application areas.The 25 papers
presented in the HAS 2016 proceedings are organized in topical sections as follows: human
factors of authentication security privacy and human behavior and security technologies.
