Applications and Techniques in Information Security

This book constitutes the refereed proceedings of the 15th International Conference, on Applications and Techniques in Information Security, ATIS 2025, jointly held in Melbourne, Australia; Kufa, Iraq and Abu Dhabi, UAE in December 17–20, 2025.  The 10 full papers presented were carefully reviewed and selected from 149 submissions. The conference focuses on Experience Driven Cyber Advances; Quantum Computing and Advanced Applications.  ATIS 2025 is supported by the Australian Government through the Council for Australia-Arab Relations.