An accounting invariant that balances cross-chain inflows and outflows detects every known attack on bridges in a 10M-transaction dataset and can be added to existing designs for broad protection.
Post-mortem: Eth router exploits 1 & 2, and premature return to trading incident
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Count of Monte Crypto: Accounting-based Defenses for Cross-Chain Bridges
An accounting invariant that balances cross-chain inflows and outflows detects every known attack on bridges in a 10M-transaction dataset and can be added to existing designs for broad protection.