On January 4, 2025, Hidrocarburos Argentinos S.A. (HASA), an Argentine energy company, appeared on the leak site of the BlackLock ransomware group. The listing indicates that internal files were exfiltrated during a ransomware attack on the firm, which employs roughly 638 people and generates approximately $35 million in annual revenue.
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Reported Details of the Incident
Public reporting indicates the data was posted to an onion address hosted by the ransomware operators. The exposed material consists of internal files allegedly taken from HASA’s systems. No confirmed count of affected individuals has been released, and the precise volume or sensitivity of the documents remains unclear from available reporting. The company operates in the energy, utilities, and waste sector and is headquartered in Buenos Aires.
Industry research from sources such as DoxxScan™ continuous monitoring has not yet catalogued this specific ransomware leak, which is typical for data posted exclusively to dark-web leak sites.
Why This Matters for You and Your Family
When a company like HASA suffers a breach, the information inside its files can include names, addresses, contact details, and financial records of customers, vendors, and employees. If your utility bills, service contracts, or employment records are among them, those details may now be in the hands of criminals. That exposure puts you and your family at higher risk of identity theft, phishing, and unwanted solicitations. Even if you have never heard of HASA, modern supply chains and shared service providers mean personal data travels farther than most people realize.