California ransomware attacks & data breaches
1,277 breaches have been reported to the California Attorney General. Incidents the filing describes as ransomware are marked.
- BAYADA Home Health Care, Inc.CA Attorney General · Filed July 17, 2026Count not stated
- Quontic Bank Acquisition Corp.California Attorney General · Filed July 17, 2026Count not stated
- Quontic Bank Acquisition Corp.CA Attorney General · Filed July 17, 2026Count not stated
- The Estée Lauder CompaniesCA Attorney General · Filed July 17, 2026Count not stated
- ZenPatient, Inc.CA Attorney General · Filed July 17, 2026Count not stated
- DentaQuest LLCCA Attorney General · Filed July 16, 2026Count not stated
- Fox Rothschild LLPCA Attorney General · Filed July 16, 2026Count not stated
- QuestoCA Attorney General · Filed July 16, 2026Count not stated
- QuestoCalifornia Attorney General · Filed July 16, 2026Count not stated
- Ernst & Young LLPCA Attorney General · Filed July 15, 2026Count not stated
- North Coast Opportunities, Inc. / Redwood Caregiver Resource CenterCA Attorney General · Filed July 15, 2026Count not stated
- North Coast Opportunities, Inc. / Redwood Caregiver Resource CenterCalifornia Attorney General · Filed July 15, 2026Count not stated
- YouLend US LLCCA Attorney General · Filed July 15, 2026Count not stated
- Madera Community HospitalCA Attorney General · Filed July 14, 2026Count not stated
- Madera Community HospitalCalifornia Attorney General · Filed July 14, 2026Count not stated
- Cabot Packing LLCCalifornia Attorney General · Filed July 13, 2026Count not stated
- Cabot Packing LLCCA Attorney General · Filed July 13, 2026Count not stated
- City of Foster CityCalifornia Attorney General · Filed July 13, 2026Count not stated
- City of Foster CityCA Attorney General · Filed July 13, 2026Count not stated
- Fiesta Insurance Franchise CorporationCA Attorney General · Filed July 13, 2026Count not stated
- HMC Fresh Foods, LLCCalifornia Attorney General · Filed July 13, 2026Count not stated
- HMC Fresh Foods, LLCCA Attorney General · Filed July 13, 2026Count not stated
- Harbor Developmental Disabilities Foundation (d/b/a Harbor Regional Center)CA Attorney General · Filed July 13, 2026Count not stated
- McClarty Farms LLCCalifornia Attorney General · Filed July 13, 2026Count not stated
- McClarty Farms LLCCA Attorney General · Filed July 13, 2026Count not stated
- Surplus Line Association of CaliforniaCA Attorney General · Filed July 13, 2026Count not stated
- The Washington PostCA Attorney General · Filed July 13, 2026Count not stated
- MedCore Health SystemsCalifornia Attorney General · Filed July 10, 2026847,000 affected
- Lincoln Technical InstituteCA Attorney General · Filed July 9, 2026Count not stated
- Lincoln Technical InstituteCalifornia Attorney General · Filed July 9, 2026Count not stated
- Alta Orthopaedics Medical Group, Inc.California Attorney General · Filed July 8, 2026Count not stated
- Alta Orthopaedics Medical Group, Inc.CA Attorney General · Filed July 8, 2026Count not stated
- Child Care Resource CenterCA Attorney General · Filed July 2, 2026Count not stated
- Child Care Resource CenterCalifornia Attorney General · Filed July 2, 2026Count not stated
- L.A. Care Health PlanCA Attorney General · Filed July 2, 2026Count not stated
- Markel InsuranceCA Attorney General · Filed July 2, 2026Count not stated
- Rodenburg Law FirmCA Attorney General · Filed July 2, 2026Count not stated
- TriWest Healthcare AllianceCA Attorney General · Filed July 2, 2026Count not stated
- Glucobit Inc.CA Attorney General · Filed June 30, 2026Count not stated
- Kubota North America CorporationCA Attorney General · Filed June 30, 2026Count not stated
- Monmouth UniversityCA Attorney General · Filed June 30, 2026Count not stated
- Medtronic Inc.CA Attorney General · Filed June 29, 2026Count not stated
- Sierra Management GroupCalifornia Attorney General · Filed June 29, 2026Count not stated
- Sierra Management GroupCA Attorney General · Filed June 29, 2026Count not stated
- AssetMark, Inc.CA Attorney General · Filed June 26, 2026Count not stated
- Blank Rome LLPCA Attorney General · Filed June 26, 2026Count not stated
- Blank Rome LLPCalifornia Attorney General · Filed June 26, 2026Count not stated
- MCBS, LLCCA Attorney General · Filed June 26, 2026Count not stated
- Nissan North America Inc.CA Attorney General · Filed June 26, 2026Count not stated
- Yellow Corporation and its affiliated debtors and debtors-in-possession under their jointly administered chapter 11 cases (Case No. 23-11069 (Bankr. D. Del. (CTG))CA Attorney General · Filed June 26, 2026Count not stated
- Hausfeld LLPCalifornia Attorney General · Filed June 25, 2026Count not stated
- Hausfeld LLPCA Attorney General · Filed June 25, 2026Count not stated
- Mercor.io CorporationCA Attorney General · Filed June 25, 2026Count not stated
- Santa Monica Community CollegeCA Attorney General · Filed June 25, 2026Count not stated
- Tower Administrative Services, IncCA Attorney General · Filed June 25, 2026Count not stated
- AgelessRxCA Attorney General · Filed June 24, 2026Count not stated
- Eisen, Inc.CA Attorney General · Filed June 24, 2026Count not stated
- Eisen, Inc.California Attorney General · Filed June 24, 2026Count not stated
- First Advantage CorporationCA Attorney General · Filed June 23, 2026Count not stated
- Glendale Community CollegeCA Attorney General · Filed June 23, 2026Count not stated
- Glendale Community CollegeCalifornia Attorney General · Filed June 23, 2026Count not stated
- Xsolis, Inc.CA Attorney General · Filed June 19, 2026Count not stated
- Richard D. Jones, A Professional Law CorporationCalifornia Attorney General · Filed June 18, 2026Count not stated
- Richard D. Jones, A Professional Law CorporationCA Attorney General · Filed June 18, 2026Count not stated
- Alcott HRCA Attorney General · Filed June 17, 2026Count not stated
- AssuranceAmerica Managing General Agency, LLCCA Attorney General · Filed June 17, 2026Count not stated
- Nelson UniversityCA Attorney General · Filed June 15, 2026Count not stated
- Networking Technology, Inc.CA Attorney General · Filed June 15, 2026Count not stated
- American Future Technology Corporation d/b/a iBUYPOWERCalifornia Attorney General · Filed June 12, 2026Count not stated
- American Future Technology Corporation d/b/a iBUYPOWERCA Attorney General · Filed June 12, 2026Count not stated
- American Future Technology Corporation d/b/a iBUYPOWERCalifornia Attorney General · Filed June 12, 2026Count not stated
- Bellflower Unified School DistrictCalifornia Attorney General · Filed June 12, 2026Count not stated
- Bellflower Unified School DistrictCA Attorney General · Filed June 12, 2026Count not stated
- Bellflower Unified School DistrictCalifornia Attorney General · Filed June 12, 2026Count not stated
- Los Angeles County Department of Public Social ServicesCalifornia Attorney General · Filed June 12, 2026Count not stated
- Los Angeles County Department of Public Social ServicesCA Attorney General · Filed June 12, 2026Count not stated
- Los Angeles County Department of Public Social ServicesCalifornia Attorney General · Filed June 12, 2026Count not stated
- Virta Medical PCCalifornia Attorney General · Filed June 12, 2026Count not stated
- Virta Medical PCCA Attorney General · Filed June 12, 2026Count not stated
- Virta Medical PCCalifornia Attorney General · Filed June 12, 2026Count not stated
- the West Series of Lockton Companies, LLCCalifornia Attorney General · Filed June 12, 2026Count not stated
- the West Series of Lockton Companies, LLCCA Attorney General · Filed June 12, 2026Count not stated
- Clinical Registry SolutionsCalifornia Attorney General · Filed June 11, 2026Count not stated
- Clinical Registry SolutionsCalifornia Attorney General · Filed June 11, 2026Count not stated
- Clinical Registry SolutionsCA Attorney General · Filed June 11, 2026Count not stated
- Pearlman, Brown & Wax LLPCalifornia Attorney General · Filed June 9, 2026Count not stated
- Pearlman, Brown & Wax LLPCA Attorney General · Filed June 9, 2026Count not stated
- Pearlman, Brown & Wax LLPCalifornia Attorney General · Filed June 9, 2026Count not stated
- Gay & Lesbian Community Services Center of Orange County, Inc.California Attorney General · Filed June 5, 2026Count not stated
- Gay & Lesbian Community Services Center of Orange County, Inc.CA Attorney General · Filed June 5, 2026Count not stated
- Gay & Lesbian Community Services Center of Orange County, Inc.California Attorney General · Filed June 5, 2026Count not stated
- Towerpoint Wealth, LLCCA Attorney General · Filed June 5, 2026Count not stated
- Towerpoint Wealth, LLCCalifornia Attorney General · Filed June 5, 2026Count not stated
- Towerpoint Wealth, LLCCalifornia Attorney General · Filed June 5, 2026Count not stated
- Ultrahuman Healthcare Private LimitedCA Attorney General · Filed June 5, 2026Count not stated
- Ultrahuman Healthcare Private LimitedCalifornia Attorney General · Filed June 5, 2026Count not stated
- Ultrahuman Healthcare Private LimitedCalifornia Attorney General · Filed June 5, 2026Count not stated
- Fong, Ko & Associates LLPCalifornia Attorney General · Filed June 1, 2026Count not stated
- Fong, Ko & Associates LLPCA Attorney General · Filed June 1, 2026Count not stated
- Fong, Ko & Associates LLPCalifornia Attorney General · Filed June 1, 2026Count not stated