Solarpro Holding Listed by coinbasecartel Ransomware Group: Ransomware Claim — What’s Alleged & What To Do
Solarpro Holding was listed by the coinbasecartel ransomware group on December 12, 2025, after internal files were exfiltrated in an attack whose timing has not been established. Individuals should check whether their data may be involved and take appropriate protective steps.
What happened
The incident came to light through a listing posted by coinbasecartel on December 12, 2025. The group claims that internal files were removed from Solarpro Holding systems during a ransomware operation. No independent confirmation of the data volume, encryption status, or restoration timeline has been released. The number of people affected remains unknown.
The group behind it: coinbasecartel
Coinbasecartel is a ransomware operator that follows the common pattern of encrypting systems and exfiltrating data before listing victims on a dedicated leak site. Groups of this type typically rely on initial access brokers, exploit publicly known vulnerabilities, or use stolen credentials to enter networks. Their listings serve as a pressure tactic in extortion attempts, though the accuracy of any individual claim requires separate verification.
Solarpro Holding and its sector
Solarpro Holding operates as an EPC contractor focused on the design, construction, and integration of photovoltaic plants, with projects exceeding 7 GW of capacity. Organizations in this sector routinely manage engineering designs, supplier contracts, project schedules, and technical specifications for large-scale energy infrastructure. A breach affecting such an entity can intersect with supply-chain and operational data that extends beyond the company itself.
What was likely exposed
The listing describes internal files exfiltrated during the ransomware attack. No inventory of specific file categories or data fields has been disclosed. Organizations of this type commonly store project documentation, employee records, vendor agreements, and technical drawings; however, the exact contents of the exfiltrated material remain unconfirmed.
Why it matters
Exposure of internal files can create operational and competitive risks for the affected company and its partners. For individuals whose information appears in those files, potential outcomes include targeted phishing or misuse of credentials. Because the scale of exposure is undisclosed, the full extent of downstream effects cannot yet be assessed.
Were you affected?
Begin by monitoring official statements from Solarpro Holding for any guidance on the incident. Review account statements and login activity for any unusual access. Individuals can also run a free exposure scan of their email address against known breach data to check for prior appearances in public leaks.
- Change passwords for any accounts linked to the organization.
- Enable multi-factor authentication on email and work-related services.
- Watch for unexpected communications that reference project or employment details.
AICompiled with AI assistance from public sources and published under our editorial standards.
How this breach connects
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Publicly posted by coinbasecartel — unverified claim, pending independent verification
Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.
Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.