FedShield: Privacy-Preserving Federated Learning with Differential Privacy and Byzantine-Robust Aggregation for Intrusion Detection in Heterogeneous IoT Networks. J. Comput. Sci. Innov. Res. 2026;1(1):7-15. Accessed June 11, 2026. https://jcsir.org/index.php/jcsir/article/view/2