TwinGuard: A Proactive RL-Driven Defence Framework for Digital Twin-Enabled O-RAN Security. - Neha Gupta; Liam O'Driscoll; Taneya Sharma; Mohammad Shojafar; Chuan Heng Foh; Ioana Boureanu; Helen Treharne; Sotiris Moschoyiannis (TrustCom, 2025)