Stephen Mathias & Co data breach

Clerk's notes

Stephen Mathias & Co, a legal services firm operating in Illinois, officially reported a data breach incident to the state's Attorney General on June 4, 2026. The matter is currently under investigation by authorities, and details regarding the exact nature and scope of the compromise are still being assessed.

Given the firm's role in handling extensive confidential client and personal data, any unauthorized access to its systems is particularly concerning. The reported breach suggests potential vulnerabilities in the security measures designed to protect the highly sensitive information entrusted to the firm, which includes a vast repository of client and individual data.

Individuals who receive a formal notification letter from Stephen Mathias & Co should understand that their personal information may have been accessed by unauthorized parties. Such an exposure can significantly increase the risk of future identity-related issues or other forms of misuse, even without immediate signs of compromise.

It is advisable for anyone affected by this incident to monitor their accounts closely for suspicious activity. If you received a data breach notification from Stephen Mathias & Co, it signifies that your private information was involved. You may be eligible to pursue legal recourse, even if you haven't yet experienced direct financial harm.

Our firm is actively evaluating claims related to the Stephen Mathias & Co breach. We offer a free case review to help affected individuals understand their options and potential next steps.

If a notification letter about this breach reached you, see every Illinois data breach on file or browse all cases.