Not quite water under the bridge: Review of cross-chain bridge hacks


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As the blockchain industry shifted towards a multi-chain world, bridges became an important part of the ecosystem. Designs of bridges vary and could range from quite primitive to extremely complex. Bridge hacks have led to a loss of over 1 billion USD worth of cryptocurrencies in the past year. In this talk, we provide a breakdown of high level components and different processes of bridges and identify their risks. We will then deep dive into past hacks that specifically targeted bridges.

Sebastian Banescu

Sebastian is a Senior Research Engineer at Quantstamp Inc. and the Managing Director of Quantstamp Germany GmbH. He holds a Ph.D in Computer Science from the Technical University of Munich. His research spans several areas of computer security such as smart contract analysis, cyber-insurance, reverse engineering, malware detection, software protection, and privacy. Before joining Quantstamp, Sebastian worked as a security specialist at BMW. Before Pursuing his Ph.D he also worked as a security engineer at Philips TV in the Netherlands. In his free time, he enjoys building Lego sets with his son.