Radiation Oncology Network of Southern California, LLC

Radiation Oncology Network of Southern California, LLC notified California AG on Jul 15, 2025 of a data breach, which occurred on Dec 16, 2024. Data exposed: Medical / health information, Email address, Postal address, Name.

Case file (dates, days to notice against the statute, what the letter offers, prior incidents)

Organization: Radiation Oncology Network of Southern California, LLC
Source: California AG · source record
Date reported: Jul 15, 2025
Date(s) of breach: Friday, December 13, 2024Monday, December 16, 2024
Residents affected: Not published by this source
Data exposed: Medical / health information Email address Postal address Name
Notice letter: Sample notice (PDF)
Discovered: Jun 13, 2025, as stated in the letter
"On June 13, 2025, we learned that an email phishing incident resulted in unauthorized access to patient information in a small number of email and SharePoint accounts."
Days to notice: 32 days from discovery (Jun 13, 2025) to the California record (Jul 15, 2025). Statute: 30 days from discovery or notification of the breach (Cal. Civ. Code § 1798.82). Over the statutory period
Offered in the letter: credit or identity monitoring through Experian
First seen by BreachTally: 2026-10-30 15:30 UTC

Dates and counts as filed by the organization with the agency. The breach window and the report date often differ by months.

Not today? Take the free Monday digest: the week's filings by state and the largest by people affected. Once a week.

Data reproduced from a public government filing. Spot an error? Email support@breachtally.com with the record link. Corrections are applied and noted.