California Cancer Associates for Research and Excellence Data Breach (2025): What Was Exposed & Free Credit Monitoring

✅ Official notice on file. California Cancer Associates for Research and Excellence filed this data breach notice with the California Attorney General on Jul 15, 2025. Compare it with the letter you received: the official copy is linked below.

View the official notice · Read the letter (PDF)

California Cancer Associates for Research and Excellence reported a data breach caused by unauthorized access to one or more employee email accounts. The information involved includes home address.

Key facts

Unauthorized access Dec 13, 2024 – Dec 16, 2024
Discovered Jun 13, 2025
Incident type Email account compromise
Data exposed Home address
Reported to California AG Jul 15, 2025
Company helpline 1-855-361-0308

Free credit monitoring

California Cancer Associates for Research and Excellence is offering 12 months of Epiq at no cost to people who received the letter.

What to do now

  1. Get your free credit reports at AnnualCreditReport.com and look for accounts you do not recognize.
  2. Call the California Cancer Associates for Research and Excellence helpline at 1-855-361-0308 if you have questions about your letter.

Timeline

  • Dec 13, 2024 — Unauthorized access begins
  • Jun 13, 2025 — California Cancer Associates for Research and Excellence discovers the incident
  • Jul 15, 2025 — Breach reported to the California Attorney General

Previous breaches at California Cancer Associates for Research and Excellence

  • Jul 15, 2025 — Home address (notice)
  • Jun 27, 2025 — Home address (notice)

Other recent data breaches

Source: notification letter and filing submitted by California Cancer Associates for Research and Excellence to the California Attorney General. BreachLetter is not affiliated with California Cancer Associates for Research and Excellence. Details extracted from the official letter; always follow the instructions in your own copy.