最近的事件引起了分散的金融（DEFI）社区的轰动

据报道，用户在复杂的三明治攻击中损失了超过70万美元。专家现在说，这项事件可能是为洗钱的预谋尝试

In the dynamic realm of decentralized finance (DeFi), a recent incident has sparked discussion among experts. A user reportedly lost over $700,000 in a sophisticated sandwich attack, an occurrence that experts believe may have been a premeditated attempt at money laundering.

在分散财务的动态领域（DEFI），最近的一项事件引发了专家之间的讨论。据报道，用户在一场精致的三明治袭击中损失了超过70万美元，这是专家认为这可能是预谋洗钱的尝试。

Sandwich attacks are a type of front-running attack where an attacker manipulates the price of a token by placing transactions before and after a victim’s trade. This strategy, which relies on the transparency of blockchain transactions, allows malicious actors to profit while traders are left unaware.

三明治攻击是一种前进攻击，攻击者通过在受害者交易前后进行交易来操纵令牌的价格。该策略依赖于区块链交易的透明度，使恶意行为者在交易者不知道的同时获利。

In the latest instance, a trader attempted to convert around $732,000 USDC to Tether (USDT) on Uniswap V3, a decentralized exchange platform. However, due to a sandwich attack, the trader faced a substantial loss, receiving only about $19,000 USDT.

最新情况中，一位交易者试图将约732,000美元的$ 732,000 USDC转换为Tether（USDT），以分散的交换平台Uniswap V3上的Tether（USDT）。但是，由于三明治袭击，交易者面临着巨大的损失，仅收到约19,000美元的损失。

The perpetrator employed a Maximal Extractable Value (MEV) bot to perform transactions ahead of the victim’s transaction. This bot’s activity influenced the token price, leading to the victim receiving a significantly smaller amount of USDT.

犯罪者使用最大可提取值（MEV）机器人来进行交易，在受害者交易之前进行交易。该机器人的活动影响了令牌价格，导致受害者收到的USDT数量明显较小。

Moreover, the attacker paid the block builders a tip of $200,000 to process their transactions first, increasing the chances of a successful hack.

此外，攻击者向Block Builder支付了200,000美元的提示，以首先处理其交易，从而增加了成功的黑客攻击机会。

Some experts have raised concerns about the possibility of money laundering due to the magnitude of the attack and its execution. The coordinated nature of the transactions, combined with the substantial sums involved, suggest that this may be more than a standard exploit.

一些专家对由于袭击的幅度及其处决的幅度引起了人们对洗钱的可能性的担忧。交易的协调性质，加上所涉及的大量资金，这表明这可能不仅仅是标准利用。

To minimize the risk of sandwich attacks, DeFi users are advised to:

为了最大程度地减少三明治攻击的风险，建议使用Defi用户：