On June 6, 2025, OneGroup NY filed a notice of data breach with the Attorney General of Vermont after discovering that a company email account had been compromised. In this notice, OneGroup NY explains that the incident resulted in an unauthorized party being able to access workers’ compensation information provided to one of the company’s corporate clients, MEMIC Indemnity. Upon completing its investigation, OneGroup NY began sending out data breach notification letters to all individuals whose information was affected by the recent data security incident.
If you received a data breach notification from OneGroup NY or MEMIC Indemnity, it is essential you understand what is at risk and what you can do about it. A data breach lawyer can help you learn more about how to protect yourself from becoming a victim of fraud or identity theft, as well as discuss your legal options following the OneGroup NY / MEMIC Indemnity data breach.
What Caused the Data Breach Affecting MEMIC Indemnity?
The OneGroup NY / MEMIC Indemnity data breach was only recently announced, and more information is expected in the near future. However, OneGroup NY’s filing with the Attorney General of Vermont provides some important information on what led up to the breach. According to this source, on July 29, 2024, OneGroup NY detected suspicious activity within a company email account. In response, OneGroup NY secured its email system and launched an investigation.
Ultimately, OneGroup NY’s investigation confirmed that an unauthorized party was able to access the contents of the email account between May 6, 2024, and May 21, 2024. It was later determined that the affected email account included confidential information belonging to workers who had filed for workers’ compensation benefits through MEMIC Indemnity.
After learning that sensitive consumer data was accessible to an unauthorized party, OneGroup NY reviewed the compromised files to determine what information was leaked and which consumers were impacted. OneGroup NY completed this process on February 4, 2025. On June 6, 2025, OneGroup NY sent out data breach letters to anyone who was affected by the recent data security incident. These letters should provide victims with a list of what information belonging to them was compromised.
More Information About OneGroup NY
Headquartered in Syracuse, New York, OneGroup NY is a risk-management, insurance-brokerage, and employee-benefits firm that serves thousands of commercial and personal clients across the Northeast and Southeast. Founded more than three decades ago, the agency maintains satellite offices in multiple states, including Pennsylvania, Massachusetts, South Carolina, and Florida. OneGroup NY operates as part of the Community Financial System, Inc. family of companies. OneGroup NY employs approximately 217 people and generates an estimated $94 million in annual revenue.
