Qilin Claims ‘Moniz Silva International’ Data Breach, Accuses Company of Disregarding Customer Health
Published on August 25, 2025
- Moniz Silva breach: The notorious Qilin threat actor announced the alleged breach of healthcare company Moniz Silva, citing ethical reasons.
- Accusations made: The claim states that the company endangers customer health and is only interested in profit.
- What leaked: Compromised data reportedly includes internal documents and employee and customer details.
The Qilin ransomware group has claimed responsibility for a data breach involving Moniz Silva International, an Angola-based retail company specializing in pharmaceutical and related products, which allegedly resulted in the exfiltration of sensitive corporate and personal data.
Details of the Data Compromise
Qilin made the claim on the group’s leak site, which supports the claim with a motive – the post states that the company is prioritizing profit over customer health, and the leak aims to lead to Moniz Silva going bankrupt.
”Unjustified overpricing of medicines. Sale of dangerous drugs. Unqualified employees who can literally kill a person with their misguided recommendations. All of this is standard practice for the company, and the evidence for this can be found in an extensive archive that has been made publicly available,” the message reads.
The group alleges it obtained complete financial statements from Moniz Silva International, which would include detailed records of the company's fiscal health and operations.
The information they claim was stolen reportedly contains comprehensive data on purchase and retail pricing structures, a leak that could expose critical business intelligence and competitive strategies. Furthermore, Qilin claims the Moniz Silva International data breach includes the personal data of both employees and customers.
The exposure of such personally identifiable information (PII) presents a high risk of identity theft, fraud, and other malicious activities targeting the individuals affected. The full scope of the PII involved has not yet been confirmed.
Implications of the Cybersecurity Incident
This purported attack underscores the growing threat that sophisticated ransomware groups, such as Qilin, pose to organizations worldwide.
This alleged breach underscores the critical importance of robust cybersecurity measures, including network segmentation, access control, and endpoint protection, to defend against advanced persistent threats.
The Russian-speaking cybercrime group has been linked by multiple reports to several incidents, including a ransomware attack on Synnovis, a U.K.-based medical company working with London hospitals. Another recent “ethical” attack involved Qilin accusing the Formacompany & Co. offshore company of money laundering. Last year, their ‘political protest’ NHS cyberattack led to one patient's death.
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