Trader loses $2M in ‘same-block backrun extraction’ exploit
A crypto trader lost approximately $2 million after a transaction was exploited through a "same-block backrun extraction" attack, with the trader swapping around 1,117 Ether on Uniswap v3 and receiving only $14,200 worth of tokens, according to GoPlus Security. The incident involved the transaction being routed through a low-liquidity pool, enabling an Ethereum block builder to profit significantly by executing arbitrage trades within the same block. The trader was advised by Ruslan Khairullin to read the transaction route before signing, highlighting the risk of blindly approving DEX transactions. The attacker used an inflated token price to drain value before distributing the profits to the builder Titan, which earned about $1.8 million from the event.
