BitMart confirmed a hack on November 2, 2026, in which $391,000 was stolen from wallets deployed across Base, Arbitrum, and Optimism. Founder Sheldon Xia described the incident as minor and said an investigation was launched, while the platform’s security remains weakened by staffing shortages. The BitMart losses may be linked to the attack on Mercado Bitcoin, which occurred roughly 53 minutes later and caused about $48.6 million in losses, although that connection has not been formally confirmed. The exchange announced its wind-down on July 26, 2026, halted all trading on August 26, and is now undergoing court-supervised restructuring after a major 2021 hack that caused estimated losses of between $150 million and $196 million.
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