HOUSTON: Real-Time Anomaly Detection of Attacks against Ethereum DeFi Protocols
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Presented at NDSS 2026 by
As decentralized finance (DeFi) continues to innovate the financial system, the security of its building blocks remains a critical concern to its large-scale adoption. In DeFi, the stakes are exceptionally high, marked by recurring instances of financial losses totaling millions of dollars every week. All major blockchain-based financial applications (i.e., DeFi protocols) are built from – and interact with – programs known as smart contracts. While many security tools have been developed to identify specific classes of vulnerabilities (e.g., reentrancy) in individual smart contracts, considerably less effort has been invested in automatically identifying – in real time – attacks against DeFi protocols.