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2nd Hacker Attack in less than a week generates alert this Tuesday
Published on September 2, 2025
The hackers would initially have tried to attack the Pix system, but apparently they were unsuccessful;R $ 4.9 million would have been diverted
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Fintech Monbank suffered a hacker attack on Tuesday (2), the third incident of the type in the Brazilian financial sector that come to public in two months and the second in less than a week.
According to Monbank, although the attack initially resulted in a deviation of $ 4.9 million, early this afternoon of Tuesday the company was able to recover $ 4.7 million.The remaining $ 200,000 are being tracked and blocked with the support of the financial institutions that received the values.
"It is important to highlight that no Monbank client was directly harmed, because the funds have come from the reserve account of the institution. So far, no data leakage or damage to customer base has been identified," said the company.
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The hackers would initially have tried to attack the Pix system, but apparently they were unsuccessful.Alternatively, they directed the attack on Monbank's TED transfer messenger system.
As a security measure, the bank temporarily suspended SPI and SPB environments (Pix and TED) in order to avoid further attacks and safeguard evidence for continuing investigations.
According to the Platobbr website, the attack is under investigation by the Federal Police and the Central Bank.Infoomoney has contacted the Central Bank and awaits positioning.
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Monbank is Monetarie's fantasy name, which is a direct credit society (SCD).Headquartered in Porto Alegre (RS) and received the SCD license in 2021.
Last week, a criminal action took place in the Sinqia system, a company that makes the technological connection between the Central Bank network and banks and fintechs.The volume of diverted pix resources in the hacker attack to the technology company is already about $ 710 million-initially, estimated $ 420 million.There were R $ 669 million diverted from HSBC and R $ 41 million from the Direct Credit Society (SCD) Artta.Of this amount, R $ 589 million have already been blocked by the Central Bank, which corresponds to 83% of the value, according to information obtained by Globo.
The attack occurred shortly after another large action, registered in July, when Hackers diverted almost R $ 1 billion exploring C&M Software vulnerabilities, another technology service provider used by banks and brokers.At the time, amounts that were in accounts in the Central Bank were transferred irregularly.