OneGroup NY Inc. Data Breach Affects MEMIC Policies

On July 29, 2024, OneGroup NY Inc. discovered suspicious activity involving its email environment, which affected personal information connected to MEMIC Indemnity-issued workers’ compensation policies. An investigation revealed that an employee’s email account was accessed without authorization between May 6 and May 21, 2024.

The company could not determine which emails were accessed or viewed. A detailed investigation took place and was completed on February 4, 2025, and confirmed personal information associated with MEMIC Indemnity-issued workers’ compensation accounts may have been compromised.

The data breach exposed a range of sensitive information, including names and other personal details. The number of individuals affected and specific types of information has not yet been specified.

The MEMIC Group's response

After discovering the data incident, OneGroup and MEMIC took steps to secure their email systems and launched an investigation to to determined the scope and impact of the breach. Affected individuals are in the process of being identified and notified.

If you receive notification from MEMIC or OneGroup, you may want to:

• Sign up for the 24 months of free credit monitoring and identity theft restoration services through Transunion.
• Monitor your credit reports and financial accounts for any unusual activity.
• Be alert for phishing emails or phone calls that may use your exposed information.
• Consider placing a fraud alert or credit freeze with major credit bureaus.

An assistance line for affected impacted individuals is available at 1-800-405-6108 between the hours of 8 a.m. and 8 p.m. Eastern Time, Monday through Friday.

For more information about the company, visit The MEMIC Group’s official website.