As a precautionary action taken early on Sunday, the developers requested that customers cancel their contracts.
According to a tweet by the protocol’s creators, a smart contract for decentralized finance (DeFi) protocol Sushi’s exchange services was hacked early on Sunday.
On the SushiSwap exchange, the ‘RouterProcessor2’ contract is notably affected by the vulnerability. This contract is used to route trades between participants.
PeckShield, a security organization, reported in the Asian morning hours on Sunday that “It seems the SushiSwap RouterProcessor2 contact has an approve-related bug, which leads to the loss of more than $3.3M,” which Sushi engineers subsequently verified.
According to many tweets from various security companies, it seems that the $3.3 million originated from a single person who goes by the handle @0xsifu and is known for trading cryptocurrency on Twitter.
Sunday, the DefiLlama developer known as @0xngmi said that the vulnerability seemed to affect users only if they had accepted Sushiswap contracts during the previous four days.
Meanwhile, the chief developer of SushiSwap, Jared Grey, sent a request to users, saying that they should remove rights for any contracts on SushiSwap as a precautionary step.
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