A Survey of LLM-Driven AI Agent Communication: Protocols, Security Risks, and Defense Countermeasures. - Dezhang Kong; Shi Lin; Zhenhua Xu; Zhebo Wang; Minghao Li; Yufeng Li; Yilun Zhang; Hujin Peng; Zeyang Sha; Yuyuan Li; Changting Lin; Xun Wang; et al. (CoRR, 2025)