Mather & Co CPAs LLC Reports Data Breach Affecting Indiana

Mather & Co CPAs LLC, a professional accounting and tax services firm based in Indiana, has reported a data breach incident to regulatory authorities. The incident involved unauthorized access to the company's systems, prompting the firm to file an official notice with the Indiana Attorney General.

The breach, which occurred on February 26, 2026, led to the potential compromise of personal information stored within the firm's network. While the specific categories of data involved were not detailed in the public filing, the firm typically handles sensitive client records as part of its tax preparation, auditing, and financial consulting services. This unauthorized access means that information involved in these operations may have been exposed.

The official report of this incident was filed on June 29, 2026. As of the filing date, the breach is listed as being under investigation. These details are derived from public disclosures made to state regulators.

Individuals who have received a data breach notification letter from Mather & Co CPAs LLC are strongly advised to carefully read the notice. This document typically provides specific information about the incident and outlines any assistance, such as identity monitoring services, that the firm may be offering.

To safeguard against potential misuse of exposed data, it is generally recommended to remain vigilant. This includes routinely monitoring account statements for any unusual activity and being cautious of unsolicited communications that request personal details. Implementing strong, unique passwords and multi-factor authentication where available can also enhance security for online accounts.