Venn Network security researcher disclosed that Coinbase lost approximately $300,000 in token fees due to incorrect interaction with the 0x Project 'swapper' contract by an MEV bot. Coinbase's Chief Security Officer Philip Martin confirmed that the incident was caused by an isolated issue triggered by a change in the corporate DEX wallet configuration, and has revoked the relevant token authorizations and transferred the funds to a new wallet, with user funds unaffected. (TheBlock)