Mizuno USA Inc. Reports Data Security Incident to Indiana AG

Mizuno USA Inc., a prominent global retailer and manufacturer specializing in athletic equipment, apparel, and footwear, formally reported a data security incident to the Indiana Attorney General on March 11, 2026. The incident involved unauthorized access to the company's systems, with the breach date identified as January 31, 2025. This disclosure comes from public regulatory filings.

As a consumer-facing retail entity, Mizuno USA Inc. typically collects and maintains sensitive customer information through its e-commerce platforms. The company confirmed that unauthorized access to its systems occurred, though the precise nature and scope of the information accessed are still part of an ongoing investigation.

Individuals who have received a formal data breach notification letter directly from Mizuno USA Inc. should understand that this indicates their personal information was likely stored within the affected environment. The purpose of these notifications is to inform affected parties about the incident and guide them on protective measures.

To safeguard against potential misuse of your data, it is crucial to remain vigilant. Regularly monitor your financial accounts and credit reports for any suspicious activity. You may also consider placing a fraud alert or security freeze on your credit files with the major credit bureaus.

Additionally, strengthen your online security by updating passwords for all accounts, particularly those associated with Mizuno USA Inc. Choose complex, unique passwords for each service and enable multi-factor authentication wherever available. Be wary of unsolicited communications that request personal information.

The details of this incident, including the breach date and reporting date, are based on official filings made by Mizuno USA Inc. with state regulators.