Why do the incident date and the report date differ?

Companies usually investigate before they report. The gap between the two dates shows how long that took.

What does the records-affected figure count?

It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.

Does this case file change over time?

Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

Case file

Case File: California Cancer Associates for Research and Excellence - San Diego Data Breach

This file collects the dated facts on record for the California Cancer Associates for Research and Excellence - San Diego incident. The state report is dated July 15, 2025. The incident itself is dated December 13, 2024.

Timeline

214 days separate the incident date from the date it was reported.

December 13, 2024Incident dateWhen the filing says the breach took place.
July 15, 2025Report filed in CaliforniaDate the notice was lodged with the California Attorney General.

Case facts

Filing state: California
Date reported: July 15, 2025
Incident date: December 13, 2024
Receiving office: California Attorney General

Case notes

California Cancer Associates for Research and Excellence - San Diego (CCARE), a healthcare provider specializing in oncology and hematology, has officially reported a data security incident. This breach involved unauthorized access to the organization's internal systems, as confirmed in their public filing with the California Attorney General.

The incident, which affected systems containing personal information, took place on December 13, 2024. While the exact types of data involved have not been specified, the filing indicates that unauthorized parties gained access to sensitive patient records.

CCARE officially reported this breach to state regulators in California on July 15, 2025. The company's investigation into the full scope and impact of this unauthorized access is currently ongoing.

If you received a notification letter from California Cancer Associates for Research and Excellence - San Diego, it is crucial to read it thoroughly. This letter will provide specific details about the incident as it pertains to your information and outline any identity protection services being offered.

As a general precaution, it is advisable to regularly monitor your financial accounts and credit reports for any suspicious or unauthorized activity. Consider placing a fraud alert or security freeze on your credit files to help prevent new accounts from being opened in your name without your consent.

Questions about this case file

Where does the California Cancer Associates for Research and Excellence - San Diego case file come from?: Every entry is taken from the breach report California Cancer Associates for Research and Excellence - San Diego lodged with the California Attorney General. Nothing here is estimated.
Why do the incident date and the report date differ?: Companies usually investigate before they report. The gap between the two dates shows how long that took.
What does the records-affected figure count?: It is the number the company gave the state. It can cover residents of that state only, so the national total may be higher.
Does this case file change over time?: Yes. When a company files an update or a new state publishes its copy of the report, the dates and counts here are refreshed.

California data breaches

Named in the California Cancer Associates for Research and Excellence - San Diego breach?

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Timeline

Case facts

Case notes

Questions about this case file

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