Brazil’s Mercado Bitcoin halts withdrawals after $40 million drained across 10 chains

Brazil's Mercado Bitcoin has halted deposits and withdrawals after roughly $40 million was drained from its wallets across at least 10 blockchain networks, days after the $6.3 billion Binance hack. The exchange, one of Latin America's largest crypto platforms, has not disclosed whether the losses stem from an exploit, key compromise, or internal failure, and has not named affected chains or tokens. The pause freezes customer funds and adds to mounting exchange-solvency concerns following the Binance incident. Watch for a formal incident report, confirmation of the attack vector, any plans for reimbursement or resumption of withdrawals, and whether Brazilian regulators respond.