Key facts
- Mercado Bitcoin said customers will first view balances, statements, holdings and investments through its website.
- Transfers, withdrawals and trading will resume in later phases, subject to independent security testing, the exchange said.
- Mercado Bitcoin pledged to use company funds to replenish assets affected by the breach.
- The exchange said its trading desk is preparing repurchases in domestic and international markets.
- Mercado Bitcoin said it had a strong cash position, including a $20 million investment from stablecoin issuer Tether.
Brazilian crypto exchange Mercado Bitcoin said on November 4, 2026 that it will begin restoring customer account access on Monday, November 9, after a hack that blockchain analysts estimated resulted in more than $46 million in stolen assets.