This two-volume set, CCIS 2315 and CCIS 2316, constitutes the refereed proceedings of the 7th International Conference on Frontiers in Cyber Security, FCS 2024 held in Chongqing, China, during July 26–28, 2024.

The 47 full papers presented in these two volumes were carefully reviewed and selected from 121 submissions.

The papers are organized in the following topical sections:

Part I: Machine Learning and Differential Privacy; Federated Learning; Privacy-Preserving Services; Blockchain and Distributed System; Public-Key Cryptography; Multi-Party Computation.

Part II: Multi-Party Computation; Smart Grid; Authentication and Deduplication.