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Billion Dollar Bugs

Talkat DeFi Security Summit 2022 · 2022-08-27..08-28· [security]
slides:none on file

A scientific, repeatable pipeline combines a decompiler/indexer (contractlibrary.com), a fast transaction debugger and a declarative program analysis engine that binary-lifts bytecode into facts to model all executions. The stack surfaces high-value, exploitable contracts — e.g., a multi-chain bridge flaw abusing a phantom permit in wrapped tokens that exposed ~1 billion approvals and led to ~$3M in bounties. The productized monitor Watchdog is live on Phantom for projects >$10M TVL and proves the approach works.

AI-written summary · about

  1. 0:00Introduction
  2. 1:35Contract Library
  3. 3:20Watchdog
  4. 4:56Methods
  5. 6:55declarative program analysis
  6. 9:05major vulnerabilities
  7. 11:05multichain bridge
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