With the growing reliance on digital communication and the increasing number of cyber attacks, network security has become a critical issue for organizations and individuals alike. ICCNS 2025, 2025 15th International Conference on Communication and Network Security, will be held in Jilin, China during December 19-21, 2025, sponsored by Northeast Electric Power University, China. It's the 15th year of ICCNS conference, but it will witness the development of the field in communication and network security. ICCNS will keep working on itself as an event whose aim is to provide this chance and platform for the researchers from academia, industry, and government institutions to exchange and present the novel research on communication and network security. It's an important event for researchers, practitioners, and professionals in the field of network security.