In a recent alarming development, a publicly exposed database has left the sensitive information of hundreds of thousands of individuals vulnerable to potential misuse. This database, containing 644,869 PDF files totaling 713.1 GB, was found to be unprotected by passwords or encryption, thereby exposing a treasure trove of personal information.
The data stored in this database, primarily labeled as “background checks,” included a wide range of personally identifiable information (PII) such as full names, home addresses, phone numbers, email addresses, employment details, family connections, social media accounts, and even criminal history. This massive exposure of personal data raises serious concerns about privacy and the potential for malicious actors to exploit this information for nefarious purposes.
This troubling breach has been traced back to SL Data Services, LLC, a company operating a network of approximately 16 websites offering various information services. Among these websites, Propertyrec stands out as a site known for providing property and real estate research data. The breach not only highlights the lack of robust security measures in place but also underscores the serious privacy implications of such a data leak.
The discovery of this exposed database was made by an independent security researcher who promptly sent a responsible disclosure notice. However, it took over a week for public access to the database to be restricted, during which time the number of documents in the database grew significantly. Despite the disclosure notice, SL Data Services and Propertyrec did not respond to inquiries, leaving it unclear whether the database was managed directly by them or by a third-party contractor.
The exposed background checks raise further concerns as Propertyrec is known for providing access to millions of public and private property records across the United States. Additionally, customer reviews suggest that users may be inadvertently enrolled in subscription services, leading to recurring charges instead of a one-off payment. The unauthorized exposure of this sensitive information without the knowledge or consent of individuals involved amplifies the risk of potential misuse.
This breach calls to mind a similar incident in August 2024 where vulnerabilities led to hackers selling stolen personal information on the dark web. Security experts emphasize the need for companies to implement robust data protection measures, such as using encrypted and randomized file identifiers instead of relying on names or PII. The importance of independent assessments and security awareness in safeguarding private data cannot be overstated.
The ethical researcher behind the discovery made it clear that their actions were aimed at highlighting vulnerabilities and prompting corrective measures, avoiding any unauthorized activities. This incident serves as a stark reminder of the critical importance of cybersecurity and the need for organizations handling sensitive information to strengthen their defenses against potential breaches.
As we navigate an increasingly digital world, the protection of personal data is paramount. The latest breach serves as a wake-up call for all entities to prioritize cybersecurity and implement rigorous measures to prevent similar incidents in the future.

