The Eighth International Conference on Frontiers in Cyber Security (FCS 2025) will be jointly organized by School of Big Data and Computer Science, Guizhou Normal University and Guizhou Provincial Key Laboratory of Intelligent Equipment (Guizhou Normal University), and supported by Guizhou Provincial Specialized Key Laboratory of Information Security Technology in Higher Education Institutions. It will be held in Guiyang, P.R. China, from October 24 to October 26, 2025. Cyber security is being paid more and more attention by industry and academia. New cyber security technologies are emerging. Many universities and institutions have set up research centers or schools for cyber security. Both government and enterprises strongly support teaching and research in cyber security. However, how to conduct research and education on cyber security is inexperienced and how to run a center for cyber security is also worth exploring since it involves many departments. The FCS conference provides a good platform for researchers and practitioners to exchange the latest research results in cyber security.