Ransomware Group: MEDUSA

VICTIM NAME: Hartwig Mechanical Inc

NOTE: No files or stolen information are [exfiltrated/downloaded/taken/hosted/seen/reposted/disclosed] by RedPacket Security. Any legal issues relating to the content of the files should be directed at the attackers directly, not RedPacket Security. This blog is simply posting an editorial news post informing that a company has fallen victim to a ransomware attack. RedPacket Security is in no way affiliated or aligned with any ransomware threat actors or groups and will not host infringing content. The information on this page is fully automated and redacted whilst being scraped directly from the MEDUSA Onion Dark Web Tor Blog page.

AI Generated Summary of the Ransomware Leak Page

The ransomware leak pertains to Hartwig Mechanical Inc, a company operating within the Commercial and Residential Construction sector in the United States. The incident was discovered on June 9, 2025, indicating a security breach that compromised the company’s data systems. The attackers have exfiltrated approximately 456 GB of sensitive data, which represents a significant data breach for the organization. The total ransom demanded for the data recovery is estimated at $100,000, highlighting the severity of the attack. The leak page includes a screenshot of internal documents, suggesting that confidential business information or technical data may have been exposed. The attack was attributed to the Medusa hacking group, known for targeting companies with similar profiles. The incident underscores the growing cyber risks faced by firms in the construction industry, especially those involved in critical infrastructure. The leak acts as a stark warning about the importance of robust cybersecurity measures and the potential financial and reputational damages associated with such breaches.

The leak page provides a detailed overview of the incident, including the claim URL which directs to a dark web portal where further information may be available. The compromised data likely includes operational, financial, or contractual information, though specific content details are not disclosed publicly. The organization’s physical address is noted, but no personally identifiable information or sensitive employee data is revealed in the public leak summary. The inclusion of a screenshot depicting internal documents emphasizes the potential impact on the company’s reputation and operational security. The attack underscores the vulnerability of construction firms, especially those managing sensitive project data and business communications. Companies are advised to strengthen their cybersecurity protocols to prevent similar incidents in the future and to mitigate the threats posed by cybercriminal groups like Medusa.