A Brazilian cryptocurrency exchange is at the center of attention after a security incident involving millions of dollars in digital assets. Mercado Bitcoin said it will cover users’ losses while working with companies in the industry to block and trace the funds involved.
The episode has heightened attention on the security of centralized exchanges and comes during a week marked by major incidents in the crypto market.
📊 What happened?
The incident was identified in the early hours of Monday (2). According to the information released\:
US$ 38 million: the amount involved in the incident, according to Mercado Bitcoin.
US$ 11 million: assets the company says it managed to freeze with the help of partners.
At least 10 blockchains: networks where researchers identified movements by wallets associated with the exchange.
Reimbursement: the company said it would cover the losses to prevent customers from suffering harm.
Personal data: the exchange said no user data was leaked.
CoinDesk
CoinDesk
C-Level
Key figures
US$ 38M
Amount involved, according to the company
US$ 11M
Assets frozen, according to the company
These figures are statements released by the exchange, not an independent audit.
🔍 What happened?
Researchers identified asset movements across different networks, including Ethereum, Bitcoin, Solana, Tron, and Polygon.
Analyses indicated that assets were transferred from wallets associated with the platform to new addresses.
There is still no public confirmation of the exact method used to gain access to the wallets.
CoinDesk also reported that there is no public evidence linking this incident to the attack on Binance.
CoinDesk
CoinDesk
🌎 Market context
The incident comes just days after the attack on Binance, estimated at US\$ 6.3 billion.
The series of incidents has put exchanges’ operational security in the spotlight and underscores the importance of controls over digital wallets, internal systems, and asset movements.
As of the publication of this edition, there was no confirmed date for the full normalization of Mercado Bitcoin’s services.
C-Level
CoinDesk
📈 Analysis: three possible scenarios
(Positive) Recovery and transparency
The freezing of assets and the promise to cover the losses may help preserve customer trust.
(Negative) Pressure on confidence
New vulnerabilities, delays in recovery, or a lack of technical information could increase concerns about centralized exchanges.
(Neutral) Gradual normalization
The resumption of services and the release of more comprehensive findings from an investigation could help stabilize the situation.
These scenarios are editorial analysis, not price predictions.
⚠️ Security alert for users
The exchange warned of possible scam attempts related to the incident.
Never share passwords, authentication codes, or recovery phrases. Be wary of messages promising reimbursement in exchange for payment or access through links sent by strangers.
C-Level
Portal do Bitcoin
📝 Editorial conclusion
The incident at Mercado Bitcoin is another warning for the cryptocurrency sector.
The promise to cover users’ losses and the freezing of some assets are significant measures, but restoring trust will also depend on transparency about the causes, system security, and the resumption of operations.
💬 Question for the community:
In your opinion, should exchanges publish security audits more frequently to demonstrate that customers’ assets are protected?
🔗 Report sources
Mercado Bitcoin — initial official statement on X.
Mercado Bitcoin — update on the amounts involved and the freezes.
CoinDesk — Mercado Bitcoin promises to cover users’ losses, 3/11/2026.
Folha de S.Paulo — US\$ 11 million frozen, 2/11/2026.
CoinDesk — movements across multiple blockchains, 2/11/2026.
Reporting note: links to the official statements are included, but direct access to the posts on X was blocked during our review. The statements were cross-checked against reporting by Folha and CoinDesk. Researchers’ estimates of more than US\$ 40 million should not be confused with the US\$ 38 million reported by the exchange.
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