California ransomware attacks & data breaches
1,277 breaches have been reported to the California Attorney General. Incidents the filing describes as ransomware are marked.
- Wynn Resorts, LimitedCA Attorney General · Filed April 3, 2026Count not stated
- Hims & Hers, Inc.CA Attorney General · Filed April 2, 2026Count not stated
- CHP 11-99 FoundationCalifornia Attorney General · Filed April 1, 2026Count not stated
- Advantage Media Services LLCCalifornia Attorney General · Filed March 31, 2026Count not stated
- Advantage Media Services LLCCA Attorney General · Filed March 31, 2026Count not stated
- Mercer Advisors Inc.CA Attorney General · Filed March 31, 2026Count not stated
- WhitepagesCalifornia Attorney General · Filed March 31, 2026Count not stated
- illumifin CorporationCA Attorney General · Filed March 31, 2026Count not stated
- Advantage GoldCA Attorney General · Filed March 29, 2026Count not stated
- Advantage GoldCalifornia Attorney General · Filed March 29, 2026Count not stated
- Eurail B.V.CA Attorney General · Filed March 27, 2026Count not stated
- Oklahoma Tax CommissionCA Attorney General · Filed March 27, 2026Count not stated
- Alliance Industrial Refrigeration Services, Inc.CA Attorney General · Filed March 26, 2026Count not stated
- Alliance Industrial Refrigeration Services, Inc.California Attorney General · Filed March 26, 2026Count not stated
- California Online Public SchoolsCA Attorney General · Filed March 26, 2026Count not stated
- California Online Public SchoolsCalifornia Attorney General · Filed March 26, 2026Count not stated
- MXB Battery Operations LPCalifornia Attorney General · Filed March 26, 2026Count not stated
- MXB Battery Operations LPCA Attorney General · Filed March 26, 2026Count not stated
- Nephrology Associates Medical GroupCalifornia Attorney General · Filed March 26, 2026Count not stated
- Nephrology Associates Medical GroupCA Attorney General · Filed March 26, 2026Count not stated
- Cetera Financial GroupCA Attorney General · Filed March 25, 2026Count not stated
- Dubroff, Easley, & Lovell, LLPCalifornia Attorney General · Filed March 25, 2026Count not stated
- Expert MRICA Attorney General · Filed March 23, 2026Count not stated
- Expert MRICalifornia Attorney General · Filed March 23, 2026Count not stated
- Stockton Cardiology Medical GroupCA Attorney General · Filed March 20, 2026Count not stated
- Stockton Cardiology Medical GroupCalifornia Attorney General · Filed March 20, 2026Count not stated
- The Shubert Organization, Inc.CA Attorney General · Filed March 20, 2026Count not stated
- Check CityCA Attorney General · Filed March 19, 2026Count not stated
- Senior Operations LLCCA Attorney General · Filed March 19, 2026Count not stated
- Senior Operations LLCCalifornia Attorney General · Filed March 19, 2026Count not stated
- Navia Benefit Solutions, Inc.CA Attorney General · Filed March 18, 2026Count not stated
- Kaplan North America, LLCCA Attorney General · Filed March 17, 2026Count not stated
- OpenLoop Health, Inc.CA Attorney General · Filed March 17, 2026Count not stated
- Chapter 13 Trustee Office of Rod DanielsonCA Attorney General · Filed March 16, 2026Count not stated
- Chapter 13 Trustee Office of Rod DanielsonCalifornia Attorney General · Filed March 16, 2026Count not stated
- Marquis Software SolutionsCA Attorney General · Filed March 16, 2026Count not stated
- Marquis Software SolutionsCalifornia Attorney General · Filed March 16, 2026Count not stated
- Retail Merchandising ServicesCA Attorney General · Filed March 16, 2026Count not stated
- Wound Technology NetworkCalifornia Attorney General · Filed March 16, 2026Count not stated
- Wound Technology NetworkCA Attorney General · Filed March 16, 2026Count not stated
- Kaiser Foundation Health PlanCA Attorney General · Filed March 12, 202613,400,000 affected
- OSI Systems, Inc.CA Attorney General · Filed March 11, 2026Count not stated
- Automobile Club of Southern CaliforniaCA Attorney General · Filed March 9, 2026Count not stated
- Ericsson IncCA Attorney General · Filed March 9, 2026Count not stated
- Ericsson IncCalifornia Attorney General · Filed March 9, 2026Count not stated
- Metropolitan Life Insurance CompanyCA Attorney General · Filed March 9, 2026Count not stated
- Metropolitan Life Insurance CompanyCalifornia Attorney General · Filed March 9, 2026Count not stated
- melvin mora incCalifornia Attorney General · Filed March 9, 2026Count not stated
- melvin mora incCA Attorney General · Filed March 9, 2026Count not stated
- EP Wealth Advisors, LLCCA Attorney General · Filed March 6, 2026Count not stated
- Reisz Siderman Eisenberg, APCCalifornia Attorney General · Filed March 6, 2026Count not stated
- Reisz Siderman Eisenberg, APCCA Attorney General · Filed March 6, 2026Count not stated
- Insightin Health, Inc.CA Attorney General · Filed March 5, 2026Count not stated
- Northwest Medical Homes, LLCCA Attorney General · Filed March 5, 2026Count not stated
- Service Lighting, Inc.CA Attorney General · Filed March 5, 2026Count not stated
- Tieu Dental CorporationCA Attorney General · Filed March 5, 2026Count not stated
- Tieu Dental CorporationCalifornia Attorney General · Filed March 5, 2026Count not stated
- Williams Accountancy CorporationCA Attorney General · Filed March 4, 2026Count not stated
- Williams Accountancy CorporationCalifornia Attorney General · Filed March 4, 2026Count not stated
- California FAIR Plan AssociationCalifornia Attorney General · Filed March 3, 2026Count not stated
- California FAIR Plan AssociationCA Attorney General · Filed March 3, 2026Count not stated
- Children’s Council of San FranciscoCA Attorney General · Filed March 3, 2026Count not stated
- Children’s Council of San FranciscoCalifornia Attorney General · Filed March 3, 2026Count not stated
- Palo Verde HospitalCalifornia Attorney General · Filed March 2, 2026Count not stated
- Valley Radiology Consultants Medical GroupCalifornia Attorney General · Filed March 2, 2026Count not stated
- Valley Radiology Consultants Medical GroupCA Attorney General · Filed March 2, 2026Count not stated
- M&Y Personal Injury LawyersCA Attorney General · Filed February 27, 2026Count not stated
- M&Y Personal Injury LawyersCalifornia Attorney General · Filed February 27, 2026Count not stated
- Maritz Holdings Inc.CA Attorney General · Filed February 27, 2026Count not stated
- PIH Health, Inc.CA Attorney General · Filed February 27, 2026Count not stated
- DC Professional Tax ServiceCA Attorney General · Filed February 26, 2026Count not stated
- DC Professional Tax ServiceCalifornia Attorney General · Filed February 26, 2026Count not stated
- Flash Charm, Inc. d/b/a IderaCA Attorney General · Filed February 26, 2026Count not stated
- Jeff Anderson & Associates PACalifornia Attorney General · Filed February 26, 2026Count not stated
- Madison Square Garden Entertainment Corp.CA Attorney General · Filed February 26, 2026Count not stated
- Madison Square Garden Entertainment Corp.California Attorney General · Filed February 26, 2026Count not stated
- Pyramid Advisors Limited Partnership d/b/a Pyramid Global HospitalityCA Attorney General · Filed February 25, 2026Count not stated
- 360training.com, Inc.CA Attorney General · Filed February 24, 2026Count not stated
- Couve Healthcare Consulting, LLC DBA Evergreen Healthcare GroupCalifornia Attorney General · Filed February 24, 2026Count not stated
- Couve Healthcare Consulting, LLC DBA Evergreen Healthcare GroupCA Attorney General · Filed February 24, 2026Count not stated
- Hennessy Advisors, Inc.CA Attorney General · Filed February 24, 2026Count not stated
- Figure Technology Solutions, Inc. on behalf of Figure Lending LLC, Figure Markets Credit LLC, and Figure Payments Corporation.CA Attorney General · Filed February 23, 2026Count not stated
- QualDerm Partners, LLCCA Attorney General · Filed February 23, 2026Count not stated
- Workers Compensation Insurance Rating Bureau of CaliforniaCalifornia Attorney General · Filed February 21, 2026Count not stated
- Too Lost LLCCA Attorney General · Filed February 20, 2026Count not stated
- Choice Hotels International, Inc.CA Attorney General · Filed February 19, 2026Count not stated
- TAK Broadband LLCCA Attorney General · Filed February 19, 2026Count not stated
- North East Medical ServicesCA Attorney General · Filed February 18, 2026Count not stated
- North East Medical ServicesCalifornia Attorney General · Filed February 18, 2026Count not stated
- TENGA USA INCCA Attorney General · Filed February 13, 2026Count not stated
- TENGA USA INCCalifornia Attorney General · Filed February 13, 2026Count not stated
- AltaMed Health Services CorporationCalifornia Attorney General · Filed February 12, 2026Count not stated
- Fishman, Larsen & Callister, P.C.California Attorney General · Filed February 12, 2026Count not stated
- Fishman, Larsen & Callister, P.C.CA Attorney General · Filed February 12, 2026Count not stated
- Nassau OOGP Vision GroupCA Attorney General · Filed February 12, 2026Count not stated
- Progress FoundationCA Attorney General · Filed February 12, 2026Count not stated
- Progress FoundationCalifornia Attorney General · Filed February 12, 2026Count not stated
- TABB Inc. (“TABB”)CA Attorney General · Filed February 12, 2026Count not stated
- Jeff Anderson & Associates PACA Attorney General · Filed February 11, 2026Count not stated
- Marquis Software Solutions (on behalf of business customer data owners)California Attorney General · Filed February 11, 2026Count not stated