One crypto trader noted the $2 million loss could have been prevented had the victim read the transaction route before signing the transaction.
A trader who swapped $2.01 million worth of Ether on a decentralized exchange has been left with just $14,500 worth of tokens after a router directed the order through a low-liquidity pool, allowing an Ethereum block builder to profit massively from a same-block arbitrage trade.
The trader swapped 1,126.44 of Ether (ETH) but only received 5,776 Lighter (LIT) tokens, in a “textbook case of same-block backrun extraction,” according to GoPlus Security.
“This was a real, highly imbalanced backrunner arbitrage, not a classic sandwich attack,” GoPlus Security said. Titan Builder was the biggest beneficiary, walking away with $1.8 million from the transaction, which took place on Monday at 1:59 am UTC.
Source: Lookonchain
The incident is a reminder of the risks posed by maximal extractable value (MEV) bots and liquidity routers on top of hackers and scammers, which continue to run rampant in the crypto industry.
To reduce the risk of such incidents, crypto trader Ruslan Khairullin said traders should read the transaction route before signing the transaction.
“This is what happens when you clicked confirm faster than you read the route. Painful lesson to see in a real time.”
Source: Luke Cannon
The victim’s swap routed approximately 1,117 Ether into a low-liquidity AVAIL/WETH pool on Uniswap v3, causing the trade to execute at roughly 120 times higher than what AVAIL could later be sold for, GoPlus Security said.
After the trader received nearly 6.67 million AVAIL tokens at an inflated price, the router involved, 0x router, sold a small amount of externally sourced AVAIL into the same pool to extract about 1,072 WETH before paying out 1,018 ETH, worth $1.8 million, to Titan as a builder reward.
The AVAIL was then swapped for $14,200 worth of LIT tokens, marking a 99.3% loss.
Related: ‘All DeFi unsafe’ claim sparks AI security debate after April hack surge
Cointelegraph reached
小靓分析：
🦊 小靓解读
这起事故并非黑客攻击，而是用户因未检查交易路由，导致订单被引导至低流动性池，被区块构建者通过同区块套利抽走190万美元，属于典型的“滑点陷阱”而非三明治攻击。
📊 市场影响
短期会加剧用户对DEX路由安全性的担忧，尤其是LIT等小市值代币的流动性风险暴露；但事件本身对ETH大盘影响有限，更多是警示用户需关注交易滑点和路径审计。
💡 操作建议
交易前务必使用支持“交易模拟”或“MEV保护”的工具（如Traceless的AI调参功能）检查路由和滑点；大额交易建议拆分多笔或选择限价单，避免在低流动性池中暴露资金。
风险提示：
该资讯来源于公开渠道，仅供参考。Traceless 无痕智盈平台不对此信息准确性做任何保证。