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Mercado Bitcoin confirmed on November 2 that one of its systems suffered a cyberattack. The exchange said the incident was contained, customers would not incur losses, and no customer data was leaked. Deposits and withdrawals are temporarily suspended as a precaution.
Why it matters
Hypernative's preliminary analysis identified more than $40 million in suspicious transfers across at least 10 blockchains. That estimate has not been confirmed by Mercado Bitcoin, and the attack method remains unknown.
Market impact
The incident puts a major Brazilian exchange's operations on hold while the investigation continues. Bitcoin, Ethereum, Solana and Tron were among the networks identified in Hypernative's analysis; the exchange's statements about customer losses and data remain distinct from the firm's estimate of suspicious transfers.
Frequently asked questions
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Why did Mercado Bitcoin suspend deposits and withdrawals?
The exchange temporarily suspended deposits and withdrawals as a precaution after confirming a cyberattack on one of its systems.
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How much in suspicious transfers did Hypernative identify?
Hypernative's preliminary analysis identified more than $40 million in suspicious transfers across at least 10 blockchains.
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Has Mercado Bitcoin confirmed losses of more than $40 million?
No. The figure is Hypernative's estimate of suspicious transfers, and Mercado Bitcoin has not confirmed those losses.
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What did Mercado Bitcoin say about customer losses and data?
The exchange said customers would not incur losses and that no customer data had been leaked.
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Which blockchains were named in the preliminary analysis?
The analysis included Bitcoin, Ethereum, Solana and Tron among at least 10 blockchains. The attack method remains unknown.
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