Coinbase Loses $300K in MEV Exploit After Misstep With 0x Swapper Contract

Coinbase, one of the leading cryptocurrency exchanges, has experienced a significant setback, losing $300,000 due to a malicious exploit involving Miner Extractable Value (MEV). This unfortunate incident was triggered by a critical misstep related to the handling of the 0x Swapper contract, which is designed to facilitate token exchanges on the Ethereum blockchain. The vulnerability in this contract was taken advantage of by attackers, allowing them to siphon off a substantial amount of funds from the platform. As a result, Coinbase is now facing increased scrutiny regarding its security protocols and the effectiveness of its smart contract implementations. source: https://www.coindesk.com/markets/2025/08/14/coinbase-loses-usd300k-in-mev-exploit-after-misstep-with-0x-swapper-contract