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Browse data breaches affecting California residents in 2026. Stay informed about security incidents and protect your personal information.
Showing 25 breaches affecting California
Discovered Jan 5, 2026
Panera, LLC experienced a data breach in January 2026, which exposed personal information of approximately 5.1 million customers nationwide.
You may be entitled to compensation
Discovered Jan 1, 2026
CardioFit Medical Group, Inc. experienced a data breach in early 2026 involving the unencrypted email transmission of patient information affecting approximately 7,243 individuals.
You may be entitled to compensation
Discovered Dec 26, 2025
Chrysler experienced a data breach in late 2025, with the Everest ransomware group claiming to have stolen over 1TB of data affecting customers nationwide.
Discovered Dec 23, 2025
QualDerm Partners experienced a data breach in late 2025 where an unauthorized actor exfiltrated patient data, leading to notifications in February 2026.
You may be entitled to compensation
Discovered Dec 22, 2025
SAFE Credit Union experienced a data breach in January 2026, leading to the compromise of personal information for approximately 120,000 members.
You may be entitled to compensation
Discovered Dec 19, 2025
A data breach involving Ahtna, Inc. was reported by the California Attorney General, though specific details remain undisclosed as of 2025. This notice indicates a potential incident affecting individuals.
You may be entitled to compensation
Discovered Dec 15, 2025
Petaluma Health Center experienced a data breach in 2025 due to a ransomware attack affecting approximately 125,000 individuals.
You may be entitled to compensation
Discovered Dec 15, 2025
Winters Healthcare reported a data breach in late 2025, stemming from a third-party vendor incident that exposed patient information.
You may be entitled to compensation
Discovered Dec 12, 2025
Eisen, Inc., a New York-based financial technology company, experienced a data breach in December 2025.
You may be entitled to compensation
Discovered Dec 8, 2025
IMA Diligence Services, LLC reported a data breach in late 2025 where a third-party server compromise exposed the personal information of over 525,000 individuals.
You may be entitled to compensation
Discovered Dec 3, 2025
Evergreen Healthcare Group experienced a data breach in late 2025, discovered December 3, 2025.
You may be entitled to compensation
Discovered Dec 2, 2025
Everside Health experienced a data breach in late 2025 involving a third-party vendor, Aesto, LLC, which exposed protected health information for an unquantified number of individuals nationwide.
You may be entitled to compensation
Discovered Dec 2, 2025
Nephrology Associates Medical Group experienced a data breach in 2026, potentially exposing protected health information and personally identifiable information.
You may be entitled to compensation
Discovered Dec 1, 2025
Wilmington Community Clinic experienced a data breach in December 2025 that affected sensitive personal and health information.
Discovered Dec 1, 2025
Delta Dental of Virginia experienced a data breach in December 2025 that was confirmed in 2026, affecting approximately 146,000 individuals.
You may be entitled to compensation
Discovered Nov 29, 2025
Glendora Surgery Center experienced a data breach in March 2026, compromising patient information.
You may be entitled to compensation
Discovered Nov 25, 2025
SitusAMC experienced a data breach in November 2025.
You may be entitled to compensation
Discovered Nov 8, 2025
Vikor Scientific experienced a data breach in 2025 that affected approximately 140,000 individuals due to a vendor incident at Catalyst RCM.
You may be entitled to compensation
Discovered Oct 31, 2025
A data breach involving CyPark, TENAX, Matlusky, and CCI Tax Pros was reported in 2025, allegedly by the Black Shrantac ransomware group.
Discovered Oct 28, 2025
Liberty Bankers Life Insurance Company experienced a data breach in late 2025 that was publicly reported in March 2026, impacting over 21,000 individuals.
You may be entitled to compensation
Discovered Oct 19, 2025
North East Medical Services experienced a data breach in late 2025/early 2026, impacting over 91,000 individuals due to unauthorized access to a third-party vendor's network.
You may be entitled to compensation
Discovered Oct 9, 2025
Wisner Baum LLP experienced a data breach in October 2025, confirmed by the company and state regulators, affecting 3,154 individuals.
You may be entitled to compensation
Discovered Oct 6, 2025
Nobu Restaurant Group Holding Company, LLC experienced a data breach in October 2025, with ransomware group Akira claiming responsibility.
You may be entitled to compensation
Discovered Oct 2, 2025
Friends of Family Health Center experienced a data breach in late 2025 due to a vendor's security incident, potentially exposing sensitive patient data.
You may be entitled to compensation
Discovered Oct 2, 2025
Mendocino Community Health Clinic experienced a data breach in October 2025 that compromised the sensitive personal and protected health information of over 3,500 individuals.
You may be entitled to compensation
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