The field of wireless communications is moving towards the development of more secure and reliable transmission systems. Researchers are exploring new technologies such as rotatable antennas, reconfigurable intelligent surfaces (RIS), and fluid RIS to enhance physical layer security. The use of RIS is gaining traction due to its ability to reshape wireless environments with low energy consumption. However, the optimization of RIS parameters such as phase shift and position design is crucial to achieve better performance. Recent studies have shown that optimizing these parameters can significantly improve secrecy outage probability and system capacity. Noteworthy papers in this area include: Average Secrecy Capacity Maximization of Rotatable Antenna-Assisted Secure Communications, which proposes a near-optimal solution for average secrecy rate maximization using a rotatable antenna. Performance Evaluation of Dual RIS-Assisted Received Space Shift Keying Modulation, which presents a novel dual-RIS-assisted architecture for smart indoor wireless signal routing. Directional Pinching-Antenna Systems, which introduces a comprehensive framework for modeling and optimizing directional pinching-antenna systems.