WNDSS 2025 - International Workshop on Network and Distributed Systems Security (WNDSS 2025), Co-located with the 40th International Information Security and Privacy Conference (IFIP SEC 2025). Maribor (Slovenia), 23 May 2025. Submissions due: 31 January 2025. The workshop is organized by IFIP Working Group 11.4 "Network & Distributed Systems Security". The aim of the workshop is to provide a forum for discussion among researchers, practitioners, regulators, students, and any other interested parties. The scope of the workshop covers the security of computer networks and of distributed systems. Beyond technical papers and papers presenting the results of completed research, also work-in-progress papers, position papers, survey papers, and papers discussing non-technical aspects are of interest. The best student paper will receive an award. For more information, please see https://ifiptc11.org/wg114-events/wg114-workshop/.