The International Conference on the Network and Cryptology (NETCRYPT) with machine learning is focusing on all aspects of cryptology, network security, privacy, and cyber security, attracting cutting-edge results from world-renowned scientists in the area. The objective of NETCRYPT 2026 is to provide a platform for researchers, engineers, academicians as well as industrial professionals from all over the world to present their research results and development activities in Communications and Network Engineering. This conference provides opportunities for the delegates to exchange new ideas and application experiences face to face, to establish business or research relations and to find global partners for future collaboration. It aims to provide a forum for researchers, engineers and practitioners interested in the application of information, networks and communication to discourse on research and development, professional practice in related fields.