Announced today, the Ethereum layer-2 chain Optimism was alerted by a white hat hacker of a critical bug in a smart contract. The bug was fixed and $2 million in bug bounty was paid out to the hacker.Ethereum Layer-2 solution Optimism has fixed a critical software bug in one of its smart contracts on Ethereum. On February 2nd, the Optimism team was alerted by Jay Freeman of a critical bug in Optimism’s fork of the Ethereum Geth client software. As per the Optimism announcement “Funds Are Safu...