BitMart confirms $391K hack amid restructuring, linked to Mercado

BitMart confirmed a $391,000 hack on November 2, 2026, linked to the Mercado Bitcoin breach. The attack targeted Ethereum layer-2 wallets amid restructuring and staff shortages.

BitMart confirmed a security breach on November 2, 2026, resulting in the theft of approximately $391,000 from wallets on Ethereum layer-2 networks Base, Arbitrum, and Optimism. Founder Sheldon Xia described the incident as minor and stated that BitMart responded swiftly by launching an investigation and enhancing security protocols. The breach is suspected to be linked to the same group behind the recent Mercado Bitcoin hack, which resulted in losses between $36.3 million and $49 million. BitMart’s vulnerability has been attributed to an understaffed security team following recent restructuring and staff departures. The exchange is currently undergoing reorganization and liquidation, which has added operational challenges during a period of heightened cybersecurity concerns. There has been no confirmation regarding the impact on customer funds or personal data.