Modern Business Systems

Modern Business Systems, also known as MBS, is a United States‑based data aggregator that focuses on the automotive and real estate sectors. The company collects consumer information and monetizes it by providing targeted advertising and email services to industry partners. Its headquarters is located in the United States of America. MBS operates as a data‑driven service provider that supplies marketing solutions derived from aggregated personal data.

In October 2016, a security incident linked to MBS exposed the personal information of over 58 million individuals. The compromised data was stored in a publicly shared MongoDB file associated with the company and included details such as names, email addresses, home addresses, phone numbers, and dates of birth. Although the file was later removed, the breach left affected individuals vulnerable to phishing and identity theft. The organization did not issue a public acknowledgment of the incident despite third‑party reports from security firms and breach notification services.

MBS is distinguished by its specialization in aggregating data for niche markets in automotive and real estate, using that information to deliver targeted marketing campaigns. The lack of transparency surrounding the 2016 breach drew criticism from affected individuals and observers who noted the failure to communicate openly about one of the largest recorded data exposures at the time. No explicit details regarding the company’s ownership, parent organization, or subsidiary structure are provided in the available sources.