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Explore a critical cybersecurity vulnerability in Internet infrastructure through this 22-minute conference presentation from USENIX Security '25. Discover how researchers from ETH Zurich, Princeton University, and Mysten Labs uncovered the BGP Vortex, a configuration where just three legitimate BGP UPDATE messages can trigger persistent Internet instability. Learn about this weaponizable attack vector that can cause widespread connectivity issues through router overload and forwarding loops, despite using completely legitimate protocol messages that bypass existing security mechanisms like BGPSEC and RPKI. Understand how standards-compliant BGP extensions, particularly BGP Communities used for traffic engineering, create this vulnerability across all major router implementations. Examine the proposed framework for determining which BGP extensions pose risks versus those safe for deployment, and gain insights into the delicate balance between network operators' traffic engineering needs and routing stability requirements in today's evolving Internet ecosystem.
