Confidential Computing Threat Exchange: Enabling Collective Defense Through Secure Cross-Sector Intelligence Sharing

The increasing sophistication of cyber threats necessitates unprecedented levels of collaboration across critical infrastructure sectors. This paper presents a comprehensive framework for confidential computing-enabled threat intelligence exchange that preserves privacy while enabling real-time collective defense capabilities. By leveraging secure enclaves, standardized threat indicator formats, and coordinated response protocols, organizations can share attested threat indicators without exposing sensitive operational data. Our analysis demonstrates how utilities, hospitals, banks, and ports can establish a national early-warning grid capable of detecting and mitigating coordinated attacks within minutes rather than hours or days.