Brazil's Largest Exchange Mercado Bitcoin: Security incident
Brazil's largest crypto exchange paused deposits and withdrawals after a security incident. Tether froze more than 4.5 million USDT tied to the attack.
StatusConfirmed
Reported lossUnavailable
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.
Sources
- https://beincrypto.com/brazils-largest-crypto-exchange-mercado-bitcoin-hacked/
- https://crypto-economy.com/mercado-bitcoin-suspends-withdrawals/
- https://cryptobriefing.com/mercado-bitcoin-suspends-deposits-withdrawals-40m/
- https://decrypt.co/382341/mercado-bitcoin-halts-withdrawals-40-million-hack
- https://www.coindesk.com/business/2026/11/02/brazil-s-mercado-bitcoin-halts-withdrawals-after-usd40-million-drained-across-10-chains
- https://www.theblock.co/news/defi/2026-11-02-mercado-bitcoin-hack-46-million-brazil-exchange-432333
Record history
First seen: 2026-11-02T13:58:49.000Z. Last updated: 2026-11-03T06:35:09.901Z. Revision: 3.