AI/ML-Assisted Threat Detection andMitigation in 6G Networks with Digital Twins: The HORSE Approach - Fabrizio Granelli; Malak Qaisi; Panagiotis Kapsalis; Gkonis, Panagiotis; Nomikos, Nikolaos; Iulisloi Zacarias; Admela Jukan; Trakadas, Panagiotis (2nd International Conference on Frontiers of Artificial Intelligence, Ethics, and Multidisciplinary Applications (FAIEMA))