加密货币交易员因三明治攻击而损失215,493美元

3月12日，一个加密货币交易员由于三明治攻击而造成了惊人的损失，这是一种由最大可提取价值（MEV）机器人使用的复杂策略，可利用分散交流。

A cryptocurrency trader appears to have suffered a staggering loss of nearly $220,000 in a sandwich attack by a Maximum Extractable Value (MEV) bot on March 12, according to blockchain analysis.

根据区块链分析，一个加密货币交易者在三明治攻击中以最大可提取价值（MEV）机器人损失了近22万美元的损失。

The trader attempted to execute a transfer of $220,764 in USD Coin (USDC) to Tether (USDT) but ultimately received only $5,271 in USDT over eight seconds, losing nearly 98% of the funds.

交易者试图执行220,764美元的美元硬币（USDC）转让到Tether（USDT），但最终在八秒钟内仅收到了$ 5,271的$ 5,271，损失了近98％的资金。

The attack occurred within the USDC-USDT liquidity pool on Uniswap v3, a decentralized exchange where approximately $19.8 million in assets are currently locked. Analyzing Ethereum's blockchain through Etherscan reveals that the MEV bot quickly front-ran the transaction. This involved draining the entire USDC liquidity from the pool right before the trader's execution and then restoring it after, securing a profit of over $215,500 from the transaction.

这次袭击发生在Uniswap V3上的USDC-USDT流动性池中，该交易所目前锁定了大约1,980万美元的资产。通过Etherscan分析以太坊的区块链表明，MEV机器人迅速在交易中进行了前进。这涉及在交易者执行之前从游泳池中排出整个USDC流动性，然后在此之后恢复，从而从交易中获得超过215,500美元的利润。

Moreover, the perpetrator tipped an Ethereum block builder known as "bob-the-builder.eth" with $200,000 from the swap, ultimately pocketing an $8,000 profit, as noted by The DeFi Report founder Michael Nadeau.

此外，肇事者将一名以太坊块建造者倾斜了，称为“ Bob-the-Builder.eth”，其交换费用为200,000美元，最终赚了8,000美元的利润，正如DEFI报告创始人Michael Nadeau所指出的那样。

DeFi researcher "DeFiac" pointed out that the same trader may have fallen victim to six sandwich attacks in total, raising concerns regarding the safety of their strategies. All transactions were traced back to borrowing and lending protocol Aave before being sent to Uniswap.

Defi研究人员“ Dafiac”指出，同一交易员可能已经遭受了六次三明治袭击的受害者，这引起了人们对其策略安全的担忧。所有交易都可以追溯到借款和贷款协议AAVE，然后再发送到UNISWAP。

On the same day, two other wallets faced similar MEV bot sandwich attacks, registering transactions of approximately $138,838 and $128,003 just minutes prior to the larger transaction. These earlier trades performed the same swap that the trader who sustained the massive loss executed.

同一天，另外两个钱包面临类似的MEV机器人三明治攻击，在较大交易前几分钟的交易中，交易约为138,838美元和128,003美元。这些较早的交易执行的交易与持续大规模损失的交易者相同。

The speculations surrounding these transactions extend to potential money laundering tactics. Individuals with illicit funds could create transactions that attract MEV bots and subsequently utilize them for arbitrage, noted one crypto legal expert. This enables them to launder money with minimal losses.

围绕这些交易的猜测扩展到潜在的洗钱策略。一位加密法律专家指出，拥有非法资金的个人可能会创建吸引MEV机器人并将其用于套利的交易。这使他们能够以最小的损失洗钱。

While Nadeau initially criticized Uniswap for failing to protect users from such attacks, he later acknowledged that the transactions were not initiated through Uniswap's front end, which is designed to include MEV protections and default slippage settings. This acknowledgment follows clarification from Uniswap CEO Hayden Adams and others regarding the platform's defenses against sandwich attacks.

尽管Nadeau最初批评Uniswap未能保护用户免受此类攻击的影响，但他后来承认，交易不是通过Uniswap的前端启动的，该交易旨在包括MEV保护和默认的打滑设置。该承认是在Uniswap首席执行官海登·亚当斯（Hayden Adams）和其他人澄清有关该平台防御三明治攻击的防御方面的澄清。

The incident not only highlights vulnerabilities within decentralized finance but also raises broader discussions about the ethical implications of automated trading strategies in the blockchain space.

该事件不仅强调了分散财务中的漏洞，而且还提出了关于区块链领域自动交易策略的道德含义的更广泛讨论。