On March 16, Euler Finance, a decentralized finance (DeFi) protocol, announced that it had been the victim of a massive hack in which a total of $197 million was stolen. This was quickly dubbed the biggest DeFi hack of 2023 so far and sent shockwaves through the crypto community.
The hacker was able to drain the funds through a series of multiple transactions, and then used a multichain bridge to transfer the stolen funds from the Binance Smart Chain to Ethereum. The hacker then moved the stolen funds into the crypto mixer Tornado Cash, making it difficult to track the funds.
However, on March 18, there was a surprising development when the hacker reportedly returned around $5.4 million in Ether to Euler Finance’s deployer address. The funds were sent in three transactions, and it is unclear why the hacker decided to return the funds.
This is not the first time that a hacker has returned stolen funds after a high-profile hack. In 2016, the hacker who stole $55 million from the DAO returned the stolen funds, citing a “bug” in the code. It is possible that the hacker behind the Euler Finance hack had a change of heart, or was pressured to return the funds after Euler Finance announced a $1 million reward for information on the hacker’s identity.
Euler Finance has demanded that the hacker return 90% of the stolen funds within 24 hours to avoid possible jail time. It remains to be seen whether the hacker will comply with this demand, or whether the rest of the stolen funds will be returned.
The Euler Finance hack highlights the ongoing security risks in the DeFi space. DeFi protocols are designed to be open and transparent, but this also makes them vulnerable to attacks. It is important for DeFi protocols to take measures to improve their security, such as performing regular audits and implementing multi-factor authentication for user accounts. Only by doing so can DeFi protocols gain the trust of users and investors alike.
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