On June 9, Optimism announced on social media that due to communication and technical errors in the cooperation with the cryptocurrency market maker Wintermute, 20 million OPs have been controlled by hackers. At first, the Optimism Foundation sent 20 million OP to Wintermute for market making, and then Wintermute found that the receiving address it provided was a Layer1 address. Before Wintermute transferred it to Layer2, the attacker had already deployed it with different initialization parameters . So far, hackers have sold about 1 million stolen OP.
On June 9, Optimism announced on social media that due to communication and technical errors in the cooperation with the cryptocurrency market maker Wintermute, 20 million OPs have been controlled by hackers. At first, the Optimism Foundation sent 20 million OP to Wintermute for market making, and then Wintermute found that the receiving address it provided was a Layer1 address. Before Wintermute transferred it to Layer2, the attacker had already deployed it with different initialization parameters . So far, hackers have sold about 1 million stolen OP.
In response, Wintermute also responded on social media, saying that the team made a serious mistake
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schedule of events
Two weeks ago, the Optimism Foundation hired Wintermute to provide liquidity for its OP token listing on a centralized exchange. As part of the agreement, Wintermute received 20 million OP.
Initially, 20 million OP will be deployed in Wintermute's Optimism wallet. We made a critical mistake when we communicated the wallet address to the Optimism team. We had deployed Gnosis Safe on mainnet for a while, and due to an internal error we were using the same wallet as the receiving address. However, unlike normal wallets, having control of mainnet Safe does not guarantee control of other EVM-compatible chains.
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what do we plan to do about it
As of this writing, the attacker still has 19 million OP tokens. We're not sure why they chose not to liquidate them all at once. Hopefully this is a white hat exploit, in which case the remaining funds may be recoverable. We haven’t heard anything from them, though, and our on-chain messages have gone unanswered.
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message to hackers
We want to treat this as a white hat exploit. We may even consider future consulting opportunities or other forms of collaboration with the hope that the remaining 19 million tokens will be returned to the Optimism wallet
0x2501c477d0a35545a387aa4a3eee4292a9a8b3f0。
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