Mercado Bitcoin has suspended cryptocurrency deposits and withdrawals after finding a security incident in one of its systems. The Brazilian exchange says it contained the incident and customers were not harmed. It has not said what happened or whether any assets moved without authorization.
- Transfers paused: Mercado Bitcoin says the suspension is a precaution while it investigates.
- Key details remain unknown: The exchange has not identified the affected system or disclosed potential losses.
- Five addresses published: Mercado Bitcoin says they are for identification and tracking. Their publication does not prove theft or establish ownership.
- No connection established: Other security incidents reported around the same time have not been linked to this one.
What Mercado Bitcoin has disclosed
Mercado Bitcoin said it detected the incident on November 2 and contained it quickly. It temporarily suspended cryptocurrency deposits and withdrawals while its security teams investigate, track assets and work with relevant authorities.
The exchange says customers were not harmed and no personal information was exposed. Those are Mercado Bitcoin’s statements, and the information available does not independently verify them.
The exchange has not named the affected system, explained how the incident happened, or said whether cryptocurrency moved without authorization. It has also not disclosed the amount of any assets involved, how many accounts may have been affected, or whether trading and other services were disrupted. It has not announced when deposits and withdrawals might resume.
Mercado Bitcoin’s updates give the date as November 2 but do not specify the year. Pausing deposits and withdrawals can limit the movement of assets during an investigation. On its own, the suspension does not prove that customer funds were stolen or that trading has stopped.
Five addresses listed for identification and tracking
In a later update, Mercado Bitcoin published five blockchain addresses it said were associated with transactions related to the incident. The exchange said it released them only for identification and tracking.
- EVM networks: 0xe485e7A70b1131216Cb47CA4555c4Bbb2C742478
- Bitcoin: 19qGpsHvzh1t6pVi526XNNkh6hW6prDZp
- Solana: 3YX6WHncP1Ra4AotE9YLawFt4nPmxyux288FWXkEW97J
- Stellar: GDXYRI6IONQA5YTGRLQ603FGJ2BWXPJTTQPUXFPSEXSRKBZLFKMZSOLP
- Tron: TEX3HuDRHRa3tnYpy96M4UfSx62VhDyA5
EVM-compatible networks are blockchains that use the Ethereum Virtual Machine, the software environment for running Ethereum-style applications. Mercado Bitcoin did not say which EVM network or networks the listed address is associated with.
The exchange has not explained which transactions prompted it to publish the addresses or identified who controls them. Anyone can monitor a public address, but publishing it does not prove that funds were stolen, identify its owner, or show that funds have been frozen. Whether any funds have been frozen remains unconfirmed by the information Mercado Bitcoin has provided.
Other incidents do not establish a connection
Separate security disruptions involving Binance, Aave and BTCPay Server were reported around the same time. No information links those events to Mercado Bitcoin’s incident. Their timing is no evidence of a shared attacker or cause, and it does not answer the remaining questions about Mercado Bitcoin’s systems or assets.
Questions readers are asking
-
Why did Mercado Bitcoin suspend deposits and withdrawals?
The exchange said it paused transfers as a precaution while investigating a security incident detected on November 2.
-
Has Mercado Bitcoin confirmed that customer funds were stolen?
No. It has not said whether assets moved without authorization or disclosed potential losses. The exchange says customers were not harmed.
-
Do the five addresses prove that an attacker controls them?
No. Mercado Bitcoin said they were associated with transactions related to the incident and published them for tracking. It has not identified who controls them.
-
When will deposits and withdrawals resume?
Mercado Bitcoin has not announced a timetable.
-
Are the Mercado Bitcoin and other reported security incidents connected?
No connection has been established. The incidents happened around the same time, but that does not show they share a cause or attacker.
