Catalyst Physician Group data breach

Clerk's notes

Catalyst Physician Group, operating in California, officially reported a data breach to the California Attorney General on September 14, 2026. This report followed an incident that occurred on September 1, 2026, which impacted the security of personal data held by the group.

The breach involved the exposure of Personally identifiable information. Following the discovery and reporting of this incident, Catalyst Physician Group initiated the process of sending notification letters directly to individuals who may have been affected. These letters aim to inform recipients about the details of the breach and any immediate steps they might need to take.

The current status of this breach case is listed as 'monitoring.' This indicates that regulatory authorities are observing the situation and any ongoing responses from Catalyst Physician Group. For affected individuals, this means the process of understanding the full implications of the breach is still unfolding.

If you received a notification letter from Catalyst Physician Group, it is important to carefully review its contents. Consider monitoring your accounts for any unusual activity. For a more detailed understanding of your rights and potential next steps, you can request a free case review from an attorney. This is attorney advertising, and no specific outcome can be guaranteed.

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