加密貨幣交易員因三明治攻擊而損失215,493美元

3月12日，一個加密貨幣交易員由於三明治攻擊而造成了驚人的損失，這是一種由最大可提取價值（MEV）機器人使用的複雜策略，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.

根據區塊鏈分析，一個加密貨幣交易者在三明治攻擊中以最大可提取價值（MEV）機器人損失了近22萬美元的損失。

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.

交易者試圖執行220,764美元的美元硬幣（USDC）轉讓到Tether（USDT），但最終在八秒鐘內僅收到了$ 5,271的$ 5,271，損失了近98％的資金。

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.

這次襲擊發生在Uniswap V3上的USDC-USDT流動性池中，該交易所目前鎖定了大約1,980萬美元的資產。通過Etherscan分析以太坊的區塊鍊錶明，MEV機器人迅速在交易中進行了前進。這涉及在交易者執行之前從游泳池中排出整個USDC流動性，然後在此之後恢復，從而從交易中獲得超過215,500美元的利潤。

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，肇事者將一名以太坊塊建造者傾斜了，稱為“ Bob-the-Builder.eth”，其交換費用為200,000美元，最終賺了8,000美元的利潤，正如DEFI報告創始人Michael Nadeau所指出的那樣。

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研究人員“ Dafiac”指出，同一交易員可能已經遭受了六次三明治襲擊的受害者，這引起了人們對其策略安全的擔憂。所有交易都可以追溯到借款和貸款協議AAVE，然後再發送到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，另外兩個錢包面臨類似的MEV機器人三明治攻擊，在較大交易前幾分鐘的交易中，交易約為138,838美元和128,003美元。這些較早的交易執行的交易與持續大規模損失的交易者相同。

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.

圍繞這些交易的猜測擴展到潛在的洗錢策略。一位加密法律專家指出，擁有非法資金的個人可能會創建吸引MEV機器人並將其用於套利的交易。這使他們能夠以最小的損失洗錢。

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.

儘管Nadeau最初批評Uniswap未能保護用戶免受此類攻擊的影響，但他後來承認，交易不是通過Uniswap的前端啟動的，該交易旨在包括MEV保護和默認的打滑設置。該承認是在Uniswap首席執行官海登·亞當斯（Hayden Adams）和其他人澄清有關該平台防禦三明治攻擊的防禦方面的澄清。

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.

該事件不僅強調了分散財務中的漏洞，而且還提出了關於區塊鏈領域自動交易策略的道德含義的更廣泛討論。