<b>Global Cyber Security in the Age of Cross-Border Threat Intelligence: Addressing Barriers, Leveraging AI, and Defining the Next Generation of Cyber Defense</b>

The global cybersecurity environment demands rising importance on cross-border threat intelligence combined with artificial intelligence systems because these tools help organizations protect against modern cyber threats. The study explores international cyber collaboration barriers together with AI assessment in defense as well as it defines essential strategic aspects for next-generation cybersecurity frameworks. The researchers conducted quantitative research through the collection of surveys which gathered responses from multiple nations' cybersecurity professionals working across public and private environments. Survey participants evaluated three main areas: artificial intelligence integration strength, border-less information exchange obstacles and readiness to protect against cyber attacks. The research used correlation and regression analytical methods to interpret the relationships between multiple variables. The current implementation of Artificial Intelligence for cybersecurity purposes exists at a medium level of integration yet it fails to enhance organizational readiness because proper training is lacking alongside insufficient infrastructure and mismatched policies. Legal divisions and trust problems serve as substantial obstacles which persist in blocking intelligence exchange among international parties. The research results showed that systematic cooperation across national borders and uniform policies created the main factors in improving cyber readiness instead of AI implementation on its own. The research indicates the need for international countries to establish interoperable legal standards while financing artificial intelligence educational programs as well as organizing public-private security collaborations to build defense capacity. Future research must use temporal and combination research methods because cyber defense operates through evolving processes. The power of artificial intelligence remains limited until organizations create a trusted system based on global collaboration and policy compliance.