Brinztech Alert: Alleged Database of a Spanish Insurance Company is on Sale

Dark Web News Analysis

The dark web news indicates that a threat actor is selling a database and WebDAV access allegedly belonging to a Spanish insurance company. The database contains 419,063 rows of client and insurance data, along with 100 GB of WebDAV data, including sensitive documents like policies, claims, government IDs, driver’s licenses, bank statements, and more. The compromised data includes client information, insurance policies, insurance claims, payments, support tickets, insurance products, system and user data, all of which could be exploited for identity theft, fraud, and other malicious purposes. The breach allegedly occurred on 12/11/2025.

Key Cybersecurity Insights

The combination of structured database records and unstructured file access (WebDAV) creates a critical risk profile:

• Severity of Data Exposure: The exposed data encompasses a wide range of highly sensitive personal and business information, including government-issued IDs and financial records, significantly increasing the risk of identity theft and financial fraud.
• WebDAV Access Amplifies Risk: The availability of WebDAV access allows threat actors to potentially access and exfiltrate even more data, modify existing files, and potentially use the system as a foothold for further attacks within the organization.
• High Value Target: Insurance companies are prime targets due to the large volumes of personal and financial data they possess, making them attractive to cybercriminals looking for data that can be easily monetized.

Mitigation Strategies

To contain this breach and secure the infrastructure, the following immediate actions are recommended:

• Investigate and Verify: Immediately investigate the validity of the data breach claim. If confirmed, promptly notify affected clients, regulatory bodies, and law enforcement in compliance with GDPR.
• Revoke and Rotate Credentials: Change all passwords and access keys for systems potentially compromised, including WebDAV access credentials, database accounts, and user accounts. Implement multi-factor authentication (MFA) where possible.
• Enhance Monitoring and Detection: Increase monitoring of network traffic, server logs, and database activity for unusual or malicious behavior. Implement or improve intrusion detection and prevention systems (IDS/IPS) to identify and block potential attacks.

Secure Your Organization with Brinztech

As a cybersecurity provider, we can protect your business from the threats discussed here. Contact us to learn more about our services.

Questions or Feedback?

For expert advice, use our ‘Ask an Analyst’ feature. Brinztech does not warrant the validity of external claims. For general inquiries or to report this post, please email us: contact@brinztech.com