Mercado Bitcoin Freezes Deposits and Withdrawals After Reported $40M Hack

Mercado Bitcoin, the largest crypto exchange in Brazil, has stopped customers from depositing or withdrawing funds. The freeze follows reports that the platform was hacked for over $40 million, according to a WatcherGuru alert. So far, the exchange itself has not publicly explained the move.

The details are still thin. WatcherGuru flagged both the suspension and the reported eight-figure loss, but there's been no confirmation from Mercado Bitcoin, no breakdown of which assets were hit, and no on-chain accounting of the alleged haul. That means the $40 million figure is a reported number, not a verified one.

The scale of the exchange is what makes this one sting. Mercado Bitcoin is the dominant player in Latin America's biggest crypto market, and a hack of this size would rank among the region's most significant security failures to date. Brazilian users who rely on the platform for trading and custody are now stuck on the sidelines.

For now, the practical effect is simple: nobody can get funds in or out. Until Mercado Bitcoin breaks its silence, customers have no official timeline for when deposits and withdrawals might resume.

What happens next hinges on the exchange's own statement. A confirmed hack would put pressure on Brazilian regulators and could ripple across the country's crypto sector, while a narrower explanation would calm nerves fast. Either way, the clock is ticking and users are watching.