Mercado Bitcoin Says Customers Will Not Take the Loss From Its Security Breach

By Isaac • November 3, 2026 11:20 pm •

Mercado Bitcoin has put the most important promise in writing: customers will not be forced to absorb losses from the security incident that hit the Brazilian exchange this week.

That is a much stronger commitment than the usual “investigation is ongoing” language that follows a crypto breach. It shifts the immediate question from whether customer balances are whole to how the exchange, investigators and industry partners recover the stolen assets.

Decrypt reports that Mercado Bitcoin, Brazil’s largest crypto exchange, said users would be reimbursed after roughly $40 million was taken. The incident was identified early on November 2, and the exchange temporarily restricted deposits and withdrawals while activating security protocols.

The company contacted authorities and began