A Survey on AI-Empowered Security Solutions for 6G.

In the future 6G communications, ground, air, and space networks have been expected to be integrated to achieve global connectivity and coverage of Internet of Everything (IoE) networks. Due to the intensified network complexity in a three-dimensional environment, artificial intelligence (AI) is encouraged to support 6G Open radio access networks (O-RAN) with autonomous management and orchestration. However, at the same time, there will be increasing security vulnerabilities derived from the nature of the new architecture. In this paper, we provide a survey on the security issues and their solutions for AI-enabled O-RAN in 6G space-air-ground integrated networks (SAGINs).