SoK: Security and Privacy of Blockchain Interoperability
Andre Augusto, Rafael Belchior, Miguel Nuno Dias Alves Pupo Correia, Andre Vasconcelos, Luyao Zhang, Thomas Hardjono
IEEE Symposium on Security and Privacy 2024 · Day 3 · Continental Ballroom 6
Blockchain interoperability, the ability for disparate blockchain systems to communicate and exchange assets or data, is a cornerstone of the burgeoning Web3 ecosystem. However, this critical functionality has become a prominent target for malicious actors, leading to devastating financial losses. This talk, "SoK: Security and Privacy of Blockchain Interoperability," presented by Andre Augusto at IEEE S&P, delivers a comprehensive systematization of knowledge (SoK) on the inherent security and privacy challenges within this domain. The motivation for this extensive research is stark: since June 2021, an alarming $3.2 billion USD has been stolen from cross-chain bridges, averaging $3 million per day, highlighting a systemic and frequent problem rather than isolated incidents.
AI review
This SoK is a critical, foundational analysis of blockchain interoperability's systemic security and privacy failures. It establishes robust models and brutally highlights the disconnect between academic focus and real-world operational layer exploits, providing indispensable, actionable insights for an area bleeding billions.