MEV Bot Steals $370K from Phishing Victim on Base Chain

On August 7, 2026, a user on the Base chain lost 500,000 USDC due to a phishing attack. The attacker attempted to convert the stolen funds to WETH but used a script without slippage protection, leading to a transaction through a low liquidity Uniswap V4 pool. This resulted in only 67.9 ETH being received, valued at $129,000, while $370,000 was siphoned off by MEV bots. The MEV bot front-ran the transaction by paying just 0.03 USDC and incurred a gas fee of 3.5 ETH. The victim has since sent on-chain messages to both the attacker and the MEV address, claiming to have identified the attacker and offering a 10% bounty for a refund.

Key Points: • A phishing attack resulted in a $500,000 loss for a user on the Base chain. • MEV bots exploited the transaction, siphoning off $370,000 during the conversion process. • The victim is actively seeking restitution by contacting the attacker and MEV bot.