Welcome to cyberspace - where all your computing and connection needs are on demand, and where security threats have never been more massive.A world without the advantages and convenience provided by cyberspace and the internet of things is now unimaginable. But do we truly grasp the threats to this massive, interconnected system? And do we really understand how to secure it? After all, cyber security is no longer just a technology problem; the effort to secure systems and society are now one and the same.This book discusses cyber security and cyber policy in an effort to improve the use and acceptance of security services. It argues that a substantive dialogue around cyberspace, cyber security and cyber policy is critical to a better understanding of the serious security issues we face.

This book constitutes the refereed proceedings of the 24th Australasian Conference on Information Security and Privacy, ACISP 2019, held in Christchurch, New Zealand, in July 2019. The 32 revised full papers and 8 short papers presented were carefully revised and selected from 129 submissions. The papers present and discuss the latest research, trends, breakthroughs, and challenges in the domain of information security, privacy and cybersecurity on a variety of topics such as encryption; post-quantum security; cryptocurrency related; foundations; system and network security; and symmetric cryptography.