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Someone Moved $3.55 Million in Unclaimed Bridge Funds Using EIP-7702

(2 hours ago) · 1 source · Summarized by CryptoBipto

Approximately $3.55 million in unclaimed funds sitting in blockchain bridge contracts were moved by an unknown party using EIP-7702, an Ethereum account abstraction standard. The incident raises questions about the security of dormant bridge funds and the implications of newer Ethereum features.

WHY IT MATTERS

Think of a blockchain bridge like a currency exchange booth at an airport. You hand over dollars on one side and pick up euros on the other. But sometimes people forget to pick up their exchanged currency, and it just sits there. In this case, someone found a way to collect $3.55 million worth of forgotten funds from these digital exchange booths. They did it using a relatively new Ethereum feature called EIP-7702, which changes how wallet accounts can interact with smart contracts — the automated programs that run on the blockchain. This event matters because it highlights potential risks in how bridge protocols handle unclaimed funds and raises questions about whether new Ethereum features could be used in unexpected ways that affect security.

Blockchain bridges allow users to transfer assets between different networks. When users bridge tokens, funds are sometimes left unclaimed on the destination chain, sitting idle in bridge contracts.

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  • thedefiant.io

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ETHBlockchain BridgesEIP-7702Account AbstractionSmart Contract Security