Thompson Coburn LLP data breach

Clerk's notes

Thompson Coburn LLP, a prominent law firm, has confirmed a data security incident that transpired on May 28, 2024. The firm officially reported this event on April 30, 2025, to California authorities, indicating that certain personal information may have been compromised.

The specific types of data involved in this breach have not been detailed in the public filing. However, recipients of notification letters from Thompson Coburn LLP should be aware that some of their personal information could have been accessed by unauthorized parties.

Currently, the incident is undergoing investigation. This means that authorities and the firm are working to understand the full scope of the breach, including the nature of the vulnerability, the extent of the unauthorized access, and what information was affected.

If you have received a letter from Thompson Coburn LLP regarding this incident, it is important to carefully review its contents. While the firm should provide details on what happened and the steps they are taking, individuals should also consider general protective measures. This often includes remaining vigilant against unsolicited communications and monitoring accounts for unusual activity.

Understanding your rights and potential recourse in such situations is crucial. If you are concerned about how this data incident might affect you, or if you believe your personal information has been misused, you may wish to seek a professional assessment. Many firms offer a free review to discuss your specific circumstances and determine if further action is appropriate.

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