Radiation Oncology Network of Southern California, LLC
ent_4b3877c348ddf3ad04b39ae9
Disclosures
3
State AG · HHS OCR · 2 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
12,944
nationwide · HHS OCR CA
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Radiation Oncology Network of Southern California, LLC
- Normalized
- radiation oncology network of southern california— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- None on record
Disclosure history (3)newest first
- California State AGas victim2025-07-15
Radiation Oncology Network of Southern California, LLC reported an email phishing incident resulting in unauthorized access to patient information in a small number of email and SharePoint accounts between December 13, 2024, and December 16, 2024. The organization discovered the incident on June 13, 2025. Affected data includes names and potentially other patient health information. The company is offering credit monitoring and providing additional cybersecurity training to staff.
- Illinois State AGas victim2025-07-01
RADIATION ONCOLOGY NETWORK OF SOUTHERN CALIFORNIA, LLC filed a data-breach notice with the Illinois Attorney General in July 2025 (case 25-07-300). The register records the breach as discovered on June 13, 2025. Personal information types reported: medical information. Illinois does not publish the number of people affected — 815 ILCS 530/10 permits the Attorney General to publish only the entity name, the types of personal information and the date range.
- CALIFORNIAHHS OCRas victim2025-06-27
Radiation Oncology Network of Southern California, LLC reported to HHS on 2025-06-27 a Hacking/IT Incident affecting 12944 individuals. Breached information located on Email.