White hat finds huge vulnerability in ETH to Arbitrum bridge: Wen max bounty?

A self-described white hat hacker has uncovered a “multi-million dollar vulnerability” in the bridge linking and Arbitrum Nitro and received a 400 Ether (ETH) bounty for their find.

Known as riptide on Twitter (NYSE:), the hacker described the exploit as the use of an initializing function to set their own bridge address, which would hijack all incoming ETH deposits from those trying to bridge funds from Ethereum to Arbitrum Nitro.

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