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California Data Breaches — Page 3
Browse data breaches affecting California residents in 2026. Stay informed about security incidents and protect your personal information.
Showing 25 breaches affecting California
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
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.
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
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.
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.
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.
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
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
Child Care Resource Center
Discovered Jul 13, 2026
Child Care Resource Center experienced a data breach between October 2016 and October 2025, with notifications issued in July 2026.
You may be entitled to compensation
Medtronic
Discovered Jul 4, 2026
Medtronic, a medical device manufacturer, experienced a data breach in April 2026, impacting nearly 3.8 million individuals.
hamilton-eye.com
Discovered Jul 2, 2026
Hamilton Eye Institute experienced a data breach in 2026, though the full scope and number of affected individuals are not yet confirmed.
You may be entitled to compensation
NAVIENT CORP
Discovered Jul 2, 2026
Navient Corp experienced a third-party data breach in June 2026, where unauthorized access to a law firm's systems exposed the personal data of approximately 2.5 million student loan borrowers.
Golden State Orthopedics & Spine
Discovered Jul 1, 2026
Golden State Orthopedics & Spine is investigating a potential data breach in July 2026, following ransomware claims by Brain Cipher.
You may be entitled to compensation
Kubota
Discovered Jul 1, 2026
Kubota North America Corporation experienced a data breach in 2026 involving unauthorized access to network systems and human resources files.
You may be entitled to compensation
Arkin Group
Discovered Jun 30, 2026
A reported 2026 data breach involving "Arkin Group" has not been confirmed by official sources. No evidence of a breach has been found for the US-based Arkin Management Group.
PC
Discovered Jun 30, 2026
Virta Medical P.C. experienced a data breach in 2026. This breach was initially detected by a ransomware tracker.
You may be entitled to compensation
Blank Rome LLP
Discovered Jun 28, 2026
There is no evidence of a data breach involving Blank Rome LLP in 2026. The search results do not report any such incident.
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