Were you affected by a data breach in California?
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California Data Breaches — Page 6
Browse data breaches affecting California residents in 2026. Stay informed about security incidents and protect your personal information.
Showing 25 breaches affecting California
Stanislaus County Health Services Agency
Discovered Aug 1, 2026
Stanislaus County Health Services Agency experienced a data breach involving a paper/mail mishandling incident affecting 767 individuals.
You may be entitled to compensation
Partition Specialties
Discovered Jul 31, 2026
Partition Specialties, Inc. data breach in 2026 was reported by ransomware.live, but the incident has not been publicly confirmed by the company or a regulator. The available source does not disclose affected-count details or the data types involved.
You may be entitled to compensation
Total Auto Business Solutions
Discovered Jul 31, 2026
Total Auto Business Solutions, Inc. data breach in 2026 was reported by a ransomware tracker, but no company or regulator confirmation was found. The available record does not confirm the affected count or what data, if any, was exposed.
JRK Property Holdings, Inc.
Discovered Jul 30, 2026
A data breach involving JRK Property Holdings, Inc. was confirmed by the California Attorney General, though specific details regarding the incident are not available.
Fresno County Department of Social Services
Discovered Jul 30, 2026
The Fresno County Department of Social Services experienced a personal data breach due to unauthorized employee access to a client data file, which was discovered in 2026.
You may be entitled to compensation
Regional Center of Orange County
Discovered Jul 30, 2026
Regional Center of Orange County experienced a data breach in 2026 involving paper records mistakenly discarded as regular trash.
SPay Inc dba Stack Sports
Discovered Jul 28, 2026
SPay Inc dba Stack Sports experienced a payment-card data breach that began to be disclosed in July 2026, impacting customers who used its Sports Affinity checkout platform.
You may be entitled to compensation
The LINE Los Angeles
Discovered Jul 25, 2026
The LINE Los Angeles, a hotel, experienced a data breach in late 2025 that led to notification of affected individuals in July 2026. The number of affected individuals remains undisclosed.
upland.k12.ca.us
Discovered Jul 24, 2026
Upland Unified School District experienced a data breach in July 2026, confirmed by a ransomware group listing, with internal files exfiltrated.
LaserShip, Inc. dba OnTrac Final Mile
Discovered Jul 24, 2026
LaserShip, Inc. dba OnTrac Final Mile experienced a data breach with an unknown date, confirmed by a California Attorney General filing.
Safetyfirst Systems, LLC
Discovered Jul 24, 2026
Safetyfirst Systems, LLC experienced a data security event in 2026, affecting clients' data, including residents in Texas and Rhode Island.
Salida Union School District
Discovered Jul 22, 2026
The Salida Union School District experienced a data incident in July 2026, with the Qilin ransomware group claiming to have exfiltrated internal files. The district states its investigation indicates no data was accessed or extracted.
Kreysler & Associates
Discovered Jul 21, 2026
Kreysler & Associates experienced a reported data breach in July 2026, according to a ransomware group claim.
BAYADA
Discovered Jul 20, 2026
BAYADA Home Health Care experienced a data incident in 2026, which they disclosed and issued updated notices for to affected individuals.
You may be entitled to compensation
ZenPatient, Inc.
Discovered Jul 18, 2026
ZenPatient, Inc. experienced a data breach between December 2025 and February 2026, which involved unauthorized access to personal information, and began notifying affected individuals in July 2026.
You may be entitled to compensation
The Nueva School
Discovered Jul 18, 2026
The Nueva School experienced a data breach in July 2026, with the Qilin ransomware group claiming responsibility and listing the school on their leak site.
McClarty Farms LLC
Discovered Jul 17, 2026
McClarty Farms LLC experienced a data breach in June 2026, though specific details remain undisclosed.
Surplus Line Association of California
Discovered Jul 17, 2026
The Surplus Line Association of California experienced a data breach in 2026. Details regarding the exact date of the breach and the total number of affected individuals remain undisclosed.
You may be entitled to compensation
Madera Community Hospital
Discovered Jul 17, 2026
Madera Community Hospital experienced a data breach in May 2025, affecting under 1,000 individuals, and reported to the California Attorney General in July 2026.
Cabot Packing LLC
Discovered Jul 17, 2026
Cabot Packing LLC experienced a data breach reported to the California AG on July 13, 2026. Specific details regarding affected individuals and data types remain undisclosed.
Ernst & Young
Discovered Jul 17, 2026
Ernst & Young experienced a data incident in 2026 involving a third-party IT service management platform, potentially exposing names and Social Security numbers.
You may be entitled to compensation
City of Foster City
Discovered Jul 17, 2026
The City of Foster City experienced a data breach in March 2026 due to a ransomware attack; the extent of data access remains uncertain.
You may be entitled to compensation
North Coast Opportunities, Inc. / Redwood Caregiver Resource Center
Discovered Jul 17, 2026
North Coast Opportunities, Inc. / Redwood Caregiver Resource Center experienced a data breach in June 2026, which was reported to the California Attorney General in July 2026. Details on affected individuals and data types have not been publicly disclosed.
HMC Fresh Foods, LLC
Discovered Jul 17, 2026
HMC Fresh Foods, LLC experienced a data breach in June 2026, reported to the California Attorney General. Specific affected counts and data types remain largely undisclosed, though SSNs may have been exposed.
You may be entitled to compensation
YouLend
Discovered Jul 16, 2026
YouLend US LLC experienced a 2026 data breach involving unauthorized network access between June 5 and June 9. The company’s notice identified names, dates of birth, and Social Security numbers, but did not disclose the number of affected individuals.
You may be entitled to compensation
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