Just a few days after the Poly Network hack that caused a loss of over $600 million, a potential hack on SushiSwap worth around $350 million was averted by a white hat hacker who identified an exploit and worked with the DEX to fix the vulnerability.

The vulnerability was detected by a research partner at crypto-focused VC firm Paradigm in the smart contract code of BitDAO’s token sale on MISO scheduled to take place on Tuesday. Not only did this white hat hacker ‘samczsun’ find issues with the smart contract but he also discovered an exploit which malicious actors could have leveraged to drain all the ETH raised in the auction, which reached a total of $365 million.

After conducting further research with two of his colleagues, samczsun then reached out to SushiSwap’s CTO, Joseph Delong, to neutralize the potential threat before a hacker discovered it. Following this, the DEX decided to allow the BitDAO token sale to manually end the auction before the funds could be drained via the exploit. SushiSwap also announced a temporary halt on the use of MISO Dutch auction format until developers can update the smart contract code by removing the vulnerability.

SushiSwap is one of the most popular DEXs running on the Ethereum blockchain, second only to Uniswap. It boasts a TVL of over $4.5 billion at present, as per analysis by DeFi Llama.