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Data breaches reported to the California Attorney General in 2023

666 notices in 2023. Companies that notify California residents of a breach file a copy of their notice letter with the Attorney General, who publishes it. The register.

By year: 2026 · 2025 · 2024 · 2023 · Overview

NoticeOrganisation
Estes Express Lines
Amwins Group, Inc.
Bunker Hill Community College
Navvis & Company, LLC
Toyota Financial Services
Transformative Healthcare
Maxco Supply, Inc.
Merrick Bank
Orrick, Herrington & Sutcliffe LLP
Brown & Streza LLP
Fred Hutchinson Cancer Center
LoanCare, LLC
National Amusements, Inc.
Panasonic Avionics Corporation
Welltok, Inc.
Welltok, Inc. - Filing on behalf of multiple entities; please see Exhibit 1.
California Northstate University
Classic Residence Management Limited Partnership d/b/a Vi Living ("Vi")
Enstar (US) Inc
Fresno Regional Workforce Development Board
Fresno Surgical Hospital
Illuminate Education, Inc. (on behalf of Victor Valley Union High School District)
Illuminate Education, Inc. (on behalf of Victor Valley Union High School District)
Los Angeles County Department of Mental Health
The Middlefield Banking Company
ESO Solutions, Inc.
Merced City School District
Recology Inc.
ESO Solutions, Inc.
Glendale Community College
Kimco Staffing Services Inc.
Los Altos Food Products, LLC
TTM Technologies
Comcast Cable Communications LLC
Health Net Community Solutions
ZOLL Medical Corporation
Flagstar Bank, N.A.
Kirkland & Ellis LLP on behalf of the Riverside County Office Of Education
Nationstar Mortgage LLC (dba Mr. Cooper)
Welltok, Inc.
Welltok, Inc. - Filing on behalf of multiple entities; please see Exhibit 1.
AMCP Payments Intermediate Company LLC d/b/a Talus Pay
Delta Dental of California and affiliates
Humana Inc
The Jacmar Companies, LLC
UnTax dba TaxPlus
National Student Clearinghouse
CareTree, Inc. on behalf of affected customers
Florida Water Products
Idaho National Laboratory operated by Battelle Energy Alliance, LLC
Keenan & Associates
Pandol Brothers, Inc.
TRISTAR Insurance Group
Americold Logistics LLC
CRC Insurance Services, LLC
CVC Holding Corp
Norton Healthcare Inc
Financial Risk Mitigation, Inc.
DePauw University
Henry Schein, Inc.
Advantis Global, Inc.
MGM Resorts International
Welltok, Inc.
Welltok, Inc. - Filing on behalf of multiple entities; please see Exhibit 1.
4 Over LLC
Gunster, Yoakley & Steward, PA
Pan-American Life Insurance Group
Stanley Steemer International, Inc.
Stanley Steemer International, Inc.
Taylor University
Troutman Pepper Hamilton Sanders LLP
Koeller Nebeker Calrson & Haluk LLP
Livermore Amador Valley Transit Authority
Valrhona Inc.
1st Source Bank
Alps Alpine North America, Inc.
Nonstop Administration and Insurance Services, Inc. (“Nonstop”) on behalf of LifeLong Medical Care
State of Maine
Zeroed-In Technologies, LLC
Big Brothers Big Sisters of America
Brodart Co.
Cadence Bank
Midwest Gaming & Entertainment, LLC
Tri Counties Bank
Welltok, Inc.
Welltok, Inc. - Filing on behalf of multiple entities; please see Exhibit 1.
Clear Spring Life and Annuity Company
Clear Spring Life and Annuity Company
Deanco Healthcare LLC dba Mission Community Hospital
Delaware Life Insurance Company
NSC Technologies
Sierra County
AutoZone, Inc.
Enstar (US) Inc
International Paper
Southwest Behavioral Health Center
Gerber Life Insurance Company
Medical Eye Services, Inc.
Pahl & McCay
Welltok, Inc.
Welltok, Inc. - Filing on behalf of multiple entities; please see Exhibit 1.
Rusnak
Systems East, Inc.
American University of Antigua College of Medicine
Stanley Steemer International, Inc.
Westside Community Services
Medical Eye Services, Inc.
International Associations of Sheet Metal Air Rail Transportation Workers
Southland Integrated Services, Inc.
Fidelity National Information Services, Inc.
Fidelity National Information Services/Emerald Financial Services
Hill International, Inc
Lobel Financial Corporation
McLaren Health Care
Orrick, Herrington & Sutcliffe LLP
Refresco Beverages US Inc.
Western Washington Medical Group
Kirkland & Ellis LLP on behalf of the Riverside County Office Of Education
Pacific Union College
Sun Life Financial
Growers Express, LLC
Taylored Service Parent Co.
AlohaCare
Life Generations Healthcare LLC ("LGH")
Perry Johnson & Associates, Inc. (PJ&A)
Sutter Health
San Francisco Jazz Organization
The Hilb Group Operating Company, LLC
Okta, Inc.
Postmeds, Inc.
Drug Free Workplaces USA, LLC
Five Guys Enterprises, LLC / Five Guys Operations, LLC
Mattson Technology, Inc.
NASCO
Pennsylvania General Store
Resort Data Processing, Inc.
University of Missouri
City of Victorville, California
LCS Financial Services
GPD Holdings LLC d/b/a CoinFlip
New York Life
Progressive Leasing
Wescom Central Credit Union
The Commerce Insurance Company (MAPFRE Insurance)
Pisenti & Brinker LLP
Revival Animal Health
Trust Benefit Technologies, LLC
BHI Energy I Specialty Services LLC
OrthoAlaska, LLC
San Diego PACE
Taylored Service Parent Co.
The Newtron Group, L.L.C.
Tri Counties Bank
Caesars Entertainment, Inc.
Crum & Forster
Frazier & Deeter, LLC
Frax Outsourcing, a subsidiary of TheKey, LLC
Lennar Corporation
West Texas Gas
University Federal Credit Union
Flagstar Bank, N.A.
LCS Financial Services
MGM Resorts International
Arcadia Publishing, Inc.
Delaware Life Insurance Company
Delaware Life Insurance Company
Ethos Technologies Inc.
Fidelity National Information Services, Inc.
Fidelity National Information Services/Emerald Financial Services
Financial Institution Service Corporation
Sunflower Bank, N.A.
Colorado Department of Health Care Policy & Financing
Sony Interactive Entertainment LLC
Great Expressions Dental Centers
Classic Residence Management Limited Partnership d/b/a Vi Living (“Vi”)
Financial Asset Management Systems ("FAMS")
Prospect Medical Holdings, Inc.
Financial Institution Service Corporation
Blackhawk Engagement Solutions
Tutor Doctor Learning Solutions, Inc
Alogent Holdings Inc
Francesca's Acquisition, LLC
PHH Mortgage Corporation
Bassett Furniture Industries, Incorporated
Financial Institution Service Corporation
First Team Real Estate
International Business Machines Corporation (“IBM”)
Kannact, Inc.
LCS Financial Services
Sovos Compliance LLC
Sovos Compliance, LLC (AAR Corp., Pacific Premier Bank, Atlantic Shareholder Services, Patelco Credit Union)
Dana Innovations
Hasz Fund Control, Inc.
National Student Clearinghouse
Amana Meat Shop & Smokehouse
Fidelity National Information Services, Inc.
Fidelity National Information Services/Emerald Financial Services
Grant Thornton LLP
RotoCo HoldCo LLC
Unum Group
Athene Annuity and Life Company and its affiliates
San Francisco Jazz Organization
Wahl, Willemse & Wilson LLP
Cadence Bank
Nuance Communications Inc
Oak Valley Hospital District
Radius Global Solutions, LLC
United Association National Pension Fund (“the Fund”)
Upstream RollCo, LLC
Annuity Investors Life Insurance Company (MassMutual Ascend Life Insurance Company)
Garnett & Garnett Tax Service
MassMutual Ascend Life Insurance Company
Honeywell International Inc.
MarketPlace Handwork of India
Far Niente
Texas Medical Liability Trust on behalf of itself and its affiliates, Texas Medical Insurance Company, Physicians Insurance Company, and Lone Star Alliance, Inc., a Risk Retention Group (collectively “TMLT”).
Sutter North Surgery Center
The Commerce Insurance Company (MAPFRE Insurance)
Lifeline Systems Company
Delaware Life Insurance Company
Lyon Real Estate
The UPS Store #3270
Amerita
Desert Physicians Management
Vivendi Ticketing US LLC d/b/a See Tickets
City of Oakland
Aetna Life Insurance Company
Caleres, Inc.
CBIZ, Inc.
Charter Communications, Inc.
Jaco Oil Company
La Clinica de La Raza, Inc.
Radius Global Solutions, LLC
Jackson Lewis
Nassau Life and Annuity Company
Topgolf Callaway Brands Corp.
UnitedHealthcare Student Resources
UnitedHealthcare Student Resources
Beverly Hills Plastic Surgery
Loyal American Life Insurance Company
Cornwell Quality Tools
F21 OpCo LLC (d/b/a Forever 21)
MW Components
RoundPoint Mortgage Servicing LLC
CareSource
KIPP Public Schools Northern California
Mendocino County Office of Education
PennyMac Loan Services LLC
SERRV International
TOG Hold Co. & Thirty One Gifts
Harvard Pilgrim Health Care
Harvard Pilgrim Health Care
Purfoods, LLC
Chevron Federal Credit Union ("CFCU")
Continental General Insurance Company
New York Life Insurance Company
NTT DATA Americas, Inc. on behalf of PBI Research Services
Pension Benefit Information, LLC ("PBI")
Data Media Associates, LLC
San Diego Unified School District
Sovos Compliance LLC
Sovos Compliance, LLC (AAR Corp., Pacific Premier Bank, Atlantic Shareholder Services, Patelco Credit Union)
TMX Finance Corporate Services, Inc., on behalf of itself, its parent TMX Finance LLC & affiliates
Portfolio Escrow Inc.
Advance America, Cash Advance Centers of California, LLC
County of Los Angeles Department of Public Social Services
MidFirst Bank
Oak Ridge Associated Universities
Orrick, Herrington & Sutcliffe LLP
Orrick, Herrington & Sutcliffe LLP
Sun Life
American National Group LLC
Maximus Inc
Mitsuwa Corporation
Orrick, Herrington & Sutcliffe LLP
Orrick, Herrington & Sutcliffe LLP
Tesla, Inc.
Hiawatha Harris MD, Inc. dba Pathways to Wellness Medication Clinics
Morris Hospital & Healthcare Centers
Osiac (formerly Advisor Group)
The Colorado State University System
BankCard USA Merchant Services Inc.
Jackson Lewis
Jackson National Life Insurance Company
Pension Benefit Information, LLC ("PBI")
PH TECH
Regal Securities, Inc.
Community Action Partnership of Madera County
Sunflower Bank, N.A.
Milliman, Inc.
Orrick, Herrington & Sutcliffe LLP
The Global Atlantic Financial Group LLC (“Global Atlantic”)
BrightSpring Health Services
Colorado Department of Health Care Policy & Financing
EP Global Production Solutions, LLC
Fidelity National Information Services, Inc.
Fidelity National Information Services/Emerald Financial Services
Hub International Limited
Interface, Inc.
New York Life Insurance Company
County of Santa Clara, California
New York Life Insurance Company
American National Group LLC
Ernst & Young LLP
M. Arthur Gensler, Jr. & Associates, Inc.
Paul Martin’s American Grill
Vermont Christmas Company
Wilton Reassurance Company
Redwood Coast Regional Center
TD Ameritrade, Inc. and Charles Schwab & Co., Inc., a TD Ameritrade affiliate.
Hospitality Staffing Solutions LLC
Valencia Wilberding & Romero
AltaMed Health Services
Cambridge College
Capital Neurological Surgeons
Lendio Partners, LLC
Loren D. Stark Company
Pension Benefit Information, LLC ("PBI")
Transamerica Life Insurance Company
Hartford Life and Accident Insurance Company
Hayward Sisters Hospital d/b/a St. Rose Hospital
Reliance Steel & Aluminum Co.
University of Hawai'i - Hawai'i Community College
Etz Hayim Holdings, S.P.C. d/b/a Lazarus Naturals
Serco, Inc.
HCA Healthcare
Lumico Life Insurance Company, Elips Life Insurance Company
Progressive Casualty Insurance Company
TIAA-CREF Life Insurance Company ("TIAA Life")
Hot Topic, Inc.
Orrick, Herrington & Sutcliffe LLP
The Prudential Insurance Company of America
Aven Financial, Inc.
Clear Spring Life and Annuity Company
Cupertino Electric, Inc.
Delaware Life Insurance Company
F&G Annuities & Life
MW Components
University of Rochester
Corebridge Financial, Inc.
Everest Global Services, Inc.
Franklin Mint Federal Credit Union
Genworth North America Corporation
IMX Medical Management Services
TIAA Kaspick, LLC
1st Source Bank
Bayside Interiors, Inc.
CRC Insurance Services, LLC‎
HRM Enterprises, Inc.
American Board of Internal Medicine
Bi-Bett Corporation
Fidelity Life Association
Jackson National Life Insurance Company
Mendocino County Office of Education
Talcott Resolution Life Insurance Company
The Johns Hopkins University and The Johns Hopkins Health System Corporation
UC Davis Health
Andrews McMeel Universal
Jack Stack Barbecue
Teachers Insurance and Annuity Association of America ("TIAA")
Teachers' Retirement System of the City of New York
Togetherwork Holdings, LLC
Northwestern Mutual
Sutter Senior Care
Aurora National Life Assurance Company
Creedmoor Sports, Inc.
Imagine360
Quinn Emanuel Urquhart & Sullivan, LLP
Teachers Insurance and Annuity Association of America ("TIAA")
Three Rivers Provider Network
UnitedHealthcare
UnitedHealthcare Student Resources
Athene Annuity and Life Company and its affiliates
CoastHills Credit Union
Harvard Pilgrim Health Care
Harvard Pilgrim Health Care
Orrick, Herrington & Sutcliffe LLP
Orrick, Herrington & Sutcliffe LLP
The Mission Essential Group
1st Source Bank
Dr. Gary Motykie, M.D., a Medical Corporation
MSX International Inc.
Rite Aid Corporation
Cadwalader, Wickersham, & Taft LLP
EBS Services, LLC
Milliman, Inc.
Quorum Federal Credit Union
Westamerica Bank
Alatus Aerosystems LLC
Idea 247 Inc. (d/b/a Idea Financial)
PlainsCapital Bank
American Multi-Cinema, Inc., d/b/a AMC Theatres
ChildNet Youth and Family Services, Inc.
LEM Products Direct LLC
Sovos Compliance LLC
Sovos Compliance, LLC (AAR Corp., Pacific Premier Bank, Atlantic Shareholder Services, Patelco Credit Union)
Hahn Loeser & Parks, LLP
Pension Benefit Information, LLC ("PBI")
Loeb & Loeb LLP
Revance Therapeutics, Inc.
The Union Labor Life Insurance Company
Whitley’s Peanut Factory
American Federation of Musicians Local 47
Gibson, Dunn & Crutcher LLP
Pear Tree Advisors, Inc.
edgeMED Healthcare, LLC
The Law Foundation of Silicon Valley
Ventura County Credit Union
Silicon Valley Mechanical, Inc.
Von Housen Management Inc.
Dole plc
ARx Patient Solutions
Imagine360
Lansing Community College
Orrick, Herrington & Sutcliffe LLP
Sweetwater Union High School District
The Vitality Group, LLC
Union Bank and Trust Company
Valley Power Systems, Inc.
AltaMed Health Services
Community Research Foundation
Smithfield Specialty Foods Group LLC ("Smithfield" or the "Company")
IMA Financial Group, Inc.
Roosevelt University
Talcott Resolution Life Insurance Company
Wubbels & Duffy, CPA, RLLP
California State Teachers' Retirement System
University of California Los Angeles
CalPERS
Citi Trends, Inc.
Desert Physicians Management
Wilton Reassurance Company
Wilton Reassurance Company
Palomar Health
USAA
Mondelez Global LLC
PharMerica Corporation
john and kira's
International Chapter P.E.O. Sisterhood
Boot World Inc.
GREENGEEKS LLC
Loeb & Loeb LLP
Markwins Beauty Brands, Inc.
R&B Corporation of Virginia d/b/a Credit Control Corporation (“CCC”)
Momentum WORK, Inc
Patelco Credit Union
CIBT, Inc.
Water Resources Control Board
ALDI, Inc.
CGM, Inc.
Door Components, Inc. d/b/a DCI Hollow Metal on Demand
Heavy Hammer
Reventics, LLC
EpiSource
Petaluma Health Center
Credit Union of Southern California
Moody National Companies, LP
C-P Flexible Packaging, Inc.
iSpace, Inc.
Managed Care of North America, Inc. (MCNA)
Nonstop Administration and insurance Services, Inc. ("Nonstop") on behalf of Eisner Health
Shasta Community Health Center (“Shasta”)
The Burton Corporation
Suffolk University
Kline and Specter, P.C.
SLT Lending SPV, Inc.
Vascular Center of Intervention, Inc.
Populus Financial Group, Inc.
Apria Healthcare LLC
Bread Financial Payments, Inc.
NCB Management Services, Inc.
Polished.com
Tenney and Company CPA’s
The Metropolitan Opera
Carvin Software, LLC
Credit Union of Southern California
DISH Network, LLC
Brightline, Inc
GoDaddy.com LLC
Jaco Oil Company
On Demand Staffing, Inc
Puma Biotechnology, Inc.
Young’s Commercial Transfer
B.R. Funsten & Company
Fertility Specialists Medical Group
Sysco Corporation
Cycle Express, LLC dba National Powersport Auctions
Whitworth University
Brightline, Inc
Brown & Streza LLP
Goodwill Industries of South Central California
Retirement Clearinghouse
ARC Document Solutions, Inc.
Brightly Software, Inc
County of Contra Costa, California
Val Verde Unified School District
Brightline, Inc
Kinetic Investment Mangement, Inc.
Orcutt Union School District
PRGX Global, Inc.
Asian Health Services
NextGen Healthcare, Inc.
RoadSafe Traffic Systems, Inc.
Copia Scientific LLC
Delano Union School District
The Metropolitan Opera
Veridian Credit Union
Carvin Software, LLC
Santa Clara Family Health Plan
Welding Supplies from IOC, subsidiary of Indiana Oxygen Company (IOC),
HealthPlan Services, Inc.
Petaluma Health Center
Arroyo Insurance Services, Inc.
Massachusetts Mutual Life Insurance Company ("MassMutual")
Moody National Companies, LP
Carrington Mortgage Services, LLC
Kal Krishnan Consulting Services, Inc. (“KKCS”)
MedsNow
University of California, San Francisco
LaborLawCenter, Inc.
Brightline, Inc
CIC Group, Inc.
Albertsons Companies, Inc.
American Bar Association
Shields Health Care Group, Inc.
Advisor Group Holdings, Inc.
Huntington Ingalls Industries, Inc.
CHSPSC, LLC
EarthLite, LLC
MiniMed Distribution Corp
NationsBenefits Holdings, LLC
Goodwill Industries of South Central California
John Muir Health - Walnut Creek Medical Center
Welding Supplies from IOC and Weld My Ride, subsidiaries of Indiana Oxygen Company (IOC),
Yum! Brands, Inc.
Brightline, Inc
Patelco Credit Union
Pennsylvania College of Technology
TuneIn, Inc.
90 Degree Benefits, Inc. - Wisconsin
HawaiiUSA Federal Credit Union
Cadwalader, Wickersham & Taft
internalDrive, Inc.
Prescott College
University of the People
California-Oregon Telecommunications Company
Aspire Public Schools
PGT INNOVATIONS
California Physicians' Services d/b/a Blue Shield of California
Monument, Inc.
Neal Industries, Inc.
Peter Brasseler Holdings, LLC; Brasseler U.S.A. Dental, LLC; Brasseler U.S.A. Medical, LLC
Ara Haddadian CPA
AudienceView Ticketing Corporation
City of Oakland
TMX Finance Corporate Services, Inc., on behalf of itself, its parent TMX Finance LLC & affiliates
Crystal Bay Casino
Regal Medical Group, Inc. (“RMG”)
Svanaco, Inc. dba Americaneagle.com
Oklahoma City University
Tenney and Company CPA’s
Los Angeles Unified School District
NCB Management Service, Inc.
1st Franklin Financial Corporation
Department of Toxic Substances Control
Guidecraft, Inc.
US Wellness Inc.
Advisor Group Holdings, Inc.
Department of Health Care Services
Emtec, Inc.
Cardiovascular Associates
Health Plan of San Mateo
Law Offices of John A. Guthrie
Jackson Lewis PC
Jackson Lewis PC
Myers Power Products, Inc.
UC San Diego Health
City of Oakland
The Olympic Club
AllCare Plus Pharmacy, Inc. ("AllCare")
Independent Living Systems, LLC
mscripts, LLC
Local Marketing Solutions Group, Inc. parent company of MoneyMailerUSA, Inc., “Money Mailer”
Spaulding McCullough & Tansil LLP
The Housing Authority of the City of Los Angeles
ZOLL Medical Corporation
Kiefer Aquatics
EPIC MANAGEMENT LLC
Merced College
The City of Modesto
CHSPSC, LLC
Elevate Services, Inc.
Nor-Cal Beverage Co., Inc.
Cerebral, Inc
Fleming, Nolen & Jez, LLP
Squishable.com, Inc.
Crystal Creamery, Inc.
Mendoza Income Tax
Saltzman & Johnson Law Corporation
Sterling Bank and Trust
Chick-fil-A, Inc.
SNP ENTERPRISES INC.
Vocality Community Credit Union (“VCCU”)
C. Overaa & Co.
College of the Desert
Lincoln Families
Smith, Gambrell & Russell, LLP
Tenant, Inc.
Hatch Bank
Advanced Health Media (“AHM”), an IQVIA company, and clients of AHM.
William Warren Properties
Aurora Financial Group, Inc.
Crystal Bay Casino
Reventics, LLC
Brooks Jucha & Associates Insurance Services, Inc. d/b/a BJA Partners
Emtec, Inc.
Jackson Lewis PC
Rancho Mesquite Casino, Inc.
Steven Engineering, Inc.
TempsPlus Staffing Services, Inc.
CA Department of Social Services
Mks Instruments Inc
Penhall Company
Credit Suisse Group AG
The Donovan Company
Xavier University of Louisiana
Charter Communications
Zacks Investment Research, Inc.
Sonder Holdings Inc.
Sharp HealthCare
Center for Autism and Related Disorders
Cardiovascular Associates
Highmark
RBC Ministries dba Our Daily Bread Ministries
Rise Interactive Media & Analytics, LLC
S.R. Freeman Inc.
Sierra College
Diligent Corporation
Regal Medical Group, Inc.
Bell-Carter Foods, LLC
Benefit Administrative Systems, LLC
Morgan Hill Unified School District
Air Resources Board
Matco Tools
Sanford Heisler Sharp, LLP
SwimOutlet.com
Livingston Memorial VNA Health Corporation and its affiliates Livingston Memorial Visiting Nurse Association and Livingston Caregivers
Jackson Lewis PC
Special Buys Clothing Inc. DBA Bargain Balloons
PayPal, Inc.
Drs. Keith and Herman Rundle
Los Angeles Unified School District
ODIN Intelligence, Inc.
Crist Biorn Shepherd Roskoph APC
Elephant Insurance Services, LLC
The Prudential Insurance Company of America
Hayward Sisters Hospital d/b/a St. Rose Hospital
TruConnect
Community Psychiatry Management, LLC, dba Mindpath Health
Insulet Corporation
Maternal and Family Health Services
Meriplex Communications, Ltd.
Knox College
City of Chula Vista
Lincare Holdings Inc.
FIX'D Inc Veteran Service Organization

From the data breach tracker: official notices, breach databases and the news, every fact with its source. Open data (CC BY 4.0) · How the tracker works · Official registers · Corrections and changes · Found a mistake? Tell us and we correct it.