On the 31st of October, M2 Exchange incurred a security loss resulting in the trading platform losing about $14 million in cryptocurrency. Since being labeled by the exploiter, the address has brilliantly washed 4,010 ETH, equivalent to approximately $12.8 million through Tornado Cash, a common cryptocurrency mixing platform as noted by PeckShield. The laundering move shows that tracing stolen assets in the decentralized finance (DeFi) space remains a challenge next to the fact that mixing services are often employed to blend transactions during the illicit process.
Source: https://coinpedia.org/crypto-live-news/m2-exchange-hacker-money-launders-12-8m-ethereum-through-tornado-cash/