Incident record · Confirmed

Brazil's Biggest Bitcoin Exchange: Security incident

Mercado Bitcoin says customers won't pay for a hack that drained tens of millions. Withdrawals on the exchange remain frozen with no restart date.

StatusConfirmed

Reported loss$40.0M

ChainBitcoin

Confidence80%

Evidence boundary

Confidence describes the coverage of the available evidence. It is not a safety rating and does not guarantee that a protocol or asset is safe.

First seen: 2026-11-03T08:56:48.000Z. Last updated: 2026-11-03T20:56:13.920Z. Revision: 1.