353 healthcare data breaches in 2018

Every breach of health information in 2018, biggest first. Most were reported to HHS, which publishes every breach affecting 500 or more people. A notice with no breach date is listed under the year it was reported.

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Breach	Date	Affected	Source
Laboratory Aug 2018 · 10.3M affected	Aug 2018	10.3M	3 sources ▾ HHS CA AG WA AG
AccuDoc Solutions Nov 2018 · 2.7M affected	Nov 2018	2.7M	HHS
Clinical Pathology Laboratories Aug 2018 · 1.7M affected	Aug 2018	1.7M	3 sources ▾ HHS CA AG WA AG
Iowa Health System Apr 2018 · 1.4M affected	Apr 2018	1.4M	HHS
Employees Retirement System of Texas Oct 2018 · 1.2M affected	Oct 2018	1.2M	HHS
Wolverine Solutions Sept 2018 · 1M affected	Sept 2018	1M	2 sources ▾ HHS CA AG
CA Department of Developmental Services Apr 2018 · 582.2K affected	Apr 2018	582.2K	HHS
MSK May 2018 · 566.2K affected	May 2018	566.2K	2 sources ▾ HHS CA AG
CNO ACE Oct 2018 · 566.2K affected	Oct 2018	566.2K	HHS
Health Management Concepts Aug 2018 · 502.4K affected	Aug 2018	502.4K	HHS
AU Medical Center Aug 2018 · 472.4K affected	Aug 2018	472.4K	HHS
Georgia Department of Human Services Nov 2018 · 435.3K affected	Nov 2018	435.3K	HHS
Sunrise Medical Laboratories Aug 2018 · 401.9K affected	Aug 2018	401.9K	2 sources ▾ HHS CA AG
UConn Health Aug 2018 · 326.6K affected	Aug 2018	326.6K	2 sources ▾ HHS CA AG
SSM Health St. Mary's Hospital Jul 2018 · 301K affected	Jul 2018	301K	HHS
Oklahoma State University Jan 2018 · 279.9K affected	Jan 2018	279.9K	HHS
ZOLL Services Nov 2018 · 277.3K affected	Nov 2018	277.3K	2 sources ▾ HHS CA AG
Med Associates Jun 2018 · 276.1K affected	Jun 2018	276.1K	HHS
Adams County Dec 2018 · 258.1K affected	Dec 2018	258.1K	HHS
Episcopal Health Services Nov 2018 · 218.1K affected	Nov 2018	218.1K	HHS
MedEvolve Mar 2018 · 205.4K affected	Mar 2018	205.4K	2 sources ▾ HHS CA AG
Warby Parker Dec 2018 · 198K affected	Dec 2018	198K	HHS
HealthEquity Sept 2018 · 165.8K affected	Sept 2018	165.8K	3 sources ▾ HHS CA AG WA AG
CBLPath Aug 2018 · 142K affected	Aug 2018	142K	2 sources ▾ HHS CA AG
Laboratory Medicine Consultants Aug 2018 · 140.6K affected	Aug 2018	140.6K	3 sources ▾ HHS CA AG WA AG
Med-Data Dec 2018 · 135.9K affected	Dec 2018	135.9K	2 sources ▾ HHS CA AG
St. Peter's Ambulatory Surgery Center Feb 2018 · 134.5K affected	Feb 2018	134.5K	HHS
New York Oncology Hematology Nov 2018 · 128.4K affected	Nov 2018	128.4K	HHS
Ramsey County Dec 2018 · 117.9K affected	Dec 2018	117.9K	HHS
Centerstone Insurance and Financial Services Jun 2018 · 111.6K affected	Jun 2018	111.6K	2 sources ▾ HHS CA AG
Boys Town National Research Hospital May 2018 · 105.3K affected	May 2018	105.3K	HHS
Dental Center of Northwest Ohio Dec 2018 · 85.9K affected	Dec 2018	85.9K	HHS
Center for Orthopaedic Specialists Feb 2018 · 81.6K affected	Feb 2018	81.6K	2 sources ▾ HHS CA AG
Tufts Associated Health Maintenance Organization Feb 2018 · 70.3K affected	Feb 2018	70.3K	HHS
Children's Mercy Hospital Jan 2018 · 65.9K affected	Jan 2018	65.9K	HHS
The Oregon Clinic May 2018 · 64.5K affected	May 2018	64.5K	HHS
Florida Agency for Persons with Disabilities Mar 2018 · 63.6K affected	Mar 2018	63.6K	HHS
Middletown Medical Mar 2018 · 63.6K affected	Mar 2018	63.6K	HHS
Dignity Health May 2018 · 55.9K affected	May 2018	55.9K	HHS
Onco360 and CareMed Specialty Pharmacy Jan 2018 · 53.2K affected	Jan 2018	53.2K	HHS
Baylor Scott & White Medical Center Nov 2018 · 48K affected	Nov 2018	48K	HHS
ATI Mar 2018 · 45.8K affected	Mar 2018	45.8K	HHS
Blue Springs Family Care Jul 2018 · 45K affected	Jul 2018	45K	HHS
GOLDEN HEART ADMINISTRATIVE PROFESSIONALS Jul 2018 · 44.6K affected	Jul 2018	44.6K	HHS
Aultman Hospital May 2018 · 42.6K affected	May 2018	42.6K	HHS
Holland Eye Surgery and Laser Center May 2018 · 42.2K affected	May 2018	42.2K	HHS
Health First Oct 2018 · 42K affected	Oct 2018	42K	HHS
Cancer Treatment Centers of America at Western Regional Medical Center May 2018 · 41.9K affected	May 2018	41.9K	2 sources ▾ HHS CA AG
Greigh I. Hirata M.D Aug 2018 · 40.8K affected	Aug 2018	40.8K	HHS
MedWatch Apr 2018 · 40.6K affected	Apr 2018	40.6K	HHS
Oprex Surgery Nov 2018 · 40K affected	Nov 2018	40K	HHS
Jones Eye Center Oct 2018 · 39.6K affected	Oct 2018	39.6K	HHS
Legacy Health Aug 2018 · 38K affected	Aug 2018	38K	HHS
Gold Coast Health Plan Jun 2018 · 37K affected	Jun 2018	37K	2 sources ▾ HHS CA AG
Triple-S Advantage Feb 2018 · 36.3K affected	Feb 2018	36.3K	HHS
City of Houston Medical Plan Mar 2018 · 34.6K affected	Mar 2018	34.6K	HHS
Confluence Health Jul 2018 · 33.8K affected	Jul 2018	33.8K	HHS
University of Vermont Health Network Dec 2018 · 32.5K affected	Dec 2018	32.5K	HHS
EmCare Sept 2018 · 31.2K affected	Sept 2018	31.2K	2 sources ▾ HHS CA AG
Acadiana Computer Systems Aug 2018 · 31.2K affected	Aug 2018	31.2K	HHS
Mississippi State Department of Health Mar 2018 · 30.8K affected	Mar 2018	30.8K	HHS
The May Eye Care Center Oct 2018 · 30K affected	Oct 2018	30K	HHS
Agency for Health Care Administration Jan 2018 · 30K affected	Jan 2018	30K	HHS
WellCare Health Plans Jun 2018 · 26.9K affected	Jun 2018	26.9K	HHS
The Podiatric Offices of Bobby Yee Dec 2018 · 24K affected	Dec 2018	24K	HHS
Decatur County General Hospital Jan 2018 · 24K affected	Jan 2018	24K	HHS
CJ Elmwood Partners Oct 2018 · 22.4K affected	Oct 2018	22.4K	HHS
Reliable Respiratory Sept 2018 · 21.3K affected	Sept 2018	21.3K	HHS
Minnesota Department of Human Services Oct 2018 · 20.8K affected	Oct 2018	20.8K	HHS
HealthFitness Oct 2018 · 20.8K affected	Oct 2018	20.8K	HHS
Center for Vitreo-Retinal Diseases Nov 2018 · 20.4K affected	Nov 2018	20.4K	HHS
Carpenters Benefit Funds of Philadelphia Aug 2018 · 20K affected	Aug 2018	20K	HHS
Catawba Valley Medical Center Oct 2018 · 20K affected	Oct 2018	20K	HHS
NorthStar Anesthesia Jul 2018 · 19.8K affected	Jul 2018	19.8K	HHS
Toyota Industries North America Sept 2018 · 19.3K affected	Sept 2018	19.3K	HHS
Veterans Health Administration Nov 2018 · 19.3K affected	Nov 2018	19.3K	HHS
Orlando Orthopaedic Center Jul 2018 · 19.1K affected	Jul 2018	19.1K	HHS
University Medical Center Physicians Aug 2018 · 18.5K affected	Aug 2018	18.5K	HHS
Barnes-Jewish Hospital Mar 2018 · 18.4K affected	Mar 2018	18.4K	HHS
California Physicians' Service May 2018 · 18.4K affected	May 2018	18.4K	2 sources ▾ HHS CA AG
Capital Digestive Care Apr 2018 · 17.6K affected	Apr 2018	17.6K	HHS
Independence Blue Cross Sept 2018 · 16.8K affected	Sept 2018	16.8K	HHS
Ransom Memorial Hospital Sept 2018 · 16.4K affected	Sept 2018	16.4K	HHS
Steward Medical Nov 2018 · 16.3K affected	Nov 2018	16.3K	HHS
New England Dermatology Jul 2018 · 16.2K affected	Jul 2018	16.2K	HHS
Hematology Oncology Associates Dec 2018 · 16.1K affected	Dec 2018	16.1K	2 sources ▾ HHS CA AG
Mind and Motion Nov 2018 · 16K affected	Nov 2018	16K	HHS
Knoxville Heart Apr 2018 · 16K affected	Apr 2018	16K	HHS
National Ambulatory Hernia Institute Oct 2018 · 16K affected	Oct 2018	16K	HHS
USACS Management Mar 2018 · 15.6K affected	Mar 2018	15.6K	2 sources ▾ HHS CA AG
David G. Simon, DMD, PA Aug 2018 · 15.1K affected	Aug 2018	15.1K	HHS
Barnes-Jewish St. Peters Hospital Mar 2018 · 15K affected	Mar 2018	15K	HHS
Verity Medical Foundation Nov 2018 · 14.9K affected	Nov 2018	14.9K	2 sources ▾ HHS CA AG
Special Agents Mutual Benefit Association Mar 2018 · 13.9K affected	Mar 2018	13.9K	HHS
Black River Medical Center Jun 2018 · 13.4K affected	Jun 2018	13.4K	HHS
MedSpring of Texas, PA Jul 2018 · 13K affected	Jul 2018	13K	HHS
Esther V. Rettig, M.D., P.A Mar 2018 · 13K affected	Mar 2018	13K	HHS
Florida Hospital May 2018 · 12.7K affected	May 2018	12.7K	HHS
Inova Health System Nov 2018 · 12.3K affected	Nov 2018	12.3K	HHS
Athens Heart Center Apr 2018 · 12.2K affected	Apr 2018	12.2K	HHS
Fondren Orthopedic Group L Apr 2018 · 11.6K affected	Apr 2018	11.6K	HHS
Guardian Pharmacy of Jacksonville Mar 2018 · 11.5K affected	Mar 2018	11.5K	HHS
CarePlus Health Plan Feb 2018 · 11.2K affected	Feb 2018	11.2K	HHS
Kansas Department for Aging and Disability Services Apr 2018 · 11K affected	Apr 2018	11K	HHS
Carolina Digestive Health Associates, PA Apr 2018 · 11K affected	Apr 2018	11K	HHS
Dr. Amy Woodruff Oct 2018 · 10.9K affected	Oct 2018	10.9K	HHS
Primary Health Care Mar 2018 · 10.3K affected	Mar 2018	10.3K	HHS
Raley's/Bel Air Mart/Nob Hill General Store Sept 2018 · 10.1K affected	Sept 2018	10.1K	2 sources ▾ HHS CA AG
Wells Pharmacy Network Aug 2018 · 10K affected	Aug 2018	10K	HHS
Longwood Orthopedic Associates Jul 2018 · 10K affected	Jul 2018	10K	HHS
Elmcroft Senior Living May 2018 · 10K affected	May 2018	10K	2 sources ▾ HHS CA AG
Union Lake Supermarket Feb 2018 · 10K affected	Feb 2018	10K	HHS
Billings Clinic Apr 2018 · 9.4K affected	Apr 2018	9.4K	HHS
Charles River Medical Associates Jan 2018 · 9.4K affected	Jan 2018	9.4K	HHS
Missouri Department of Mental Health Oct 2018 · 9K affected	Oct 2018	9K	HHS
Cerebral Palsy Research Foundation of Kansas May 2018 · 8.3K affected	May 2018	8.3K	HHS
FirstCare Health Plans Oct 2018 · 8.1K affected	Oct 2018	8.1K	HHS
Illinois Department of Healthcare and Family Services Apr 2018 · 8K affected	Apr 2018	8K	HHS
New England Baptist Health Jun 2018 · 7.6K affected	Jun 2018	7.6K	HHS
Tandigm Health Nov 2018 · 7.4K affected	Nov 2018	7.4K	HHS
Georgia Spine & Orthopaedics of Atlanta Nov 2018 · 7K affected	Nov 2018	7K	HHS
James R. Etzkorn, MD Nov 2018 · 6.8K affected	Nov 2018	6.8K	HHS
Sunspire Health Jul 2018 · 6.7K affected	Jul 2018	6.7K	HHS
Jemison Internal Medicine Feb 2018 · 6.6K affected	Feb 2018	6.6K	HHS
Associates in Psychiatry and Psychology May 2018 · 6.5K affected	May 2018	6.5K	HHS
Ohio Living Sept 2018 · 6.5K affected	Sept 2018	6.5K	HHS
Prairie Fields Family Medicine Nov 2018 · 6.5K affected	Nov 2018	6.5K	HHS
Fairbanks North Star Borough Jul 2018 · 6.3K affected	Jul 2018	6.3K	HHS
CareFirst Blue Cross Blue Shield Apr 2018 · 6.2K affected	Apr 2018	6.2K	HHS
AltaMed Health Services May 2018 · 6K affected	May 2018	6K	2 sources ▾ HHS CA AG
Rhode Island Executive Office of Health and Human Services Feb 2018 · 5.6K affected	Feb 2018	5.6K	HHS
Humana May 2018 · 5.6K affected	May 2018	5.6K	2 sources ▾ HHS CA AG
The Children's Hospital of Philadelphia Oct 2018 · 5.4K affected	Oct 2018	5.4K	HHS
Westminster Ingleside King Farm Presbyterian Retirement Communities Jan 2018 · 5.2K affected	Jan 2018	5.2K	HHS
Serene Sedation Mar 2018 · 5.2K affected	Mar 2018	5.2K	HHS
Flexible Benefit Service Feb 2018 · 5.1K affected	Feb 2018	5.1K	HHS
AdventHealth Rollins Brook Hospital Nov 2018 · 5K affected	Nov 2018	5K	HHS
San Mateo Medical Center Nov 2018 · 5K affected	Nov 2018	5K	HHS
Smith Dental Care Oct 2018 · 5K affected	Oct 2018	5K	HHS
Crossroads Behavioral Health Aug 2018 · 5K affected	Aug 2018	5K	HHS
Port City Operating Company, doing business as St. Joseph's Medical Center Aug 2018 · 5K affected	Aug 2018	5K	2 sources ▾ HHS CA AG
VCU Health System Jul 2018 · 4.7K affected	Jul 2018	4.7K	HHS
Gruber Dental Apr 2018 · 4.6K affected	Apr 2018	4.6K	HHS
RGH Enterprises Jan 2018 · 4.6K affected	Jan 2018	4.6K	HHS
QuadMed Jan 2018 · 4.5K affected	Jan 2018	4.5K	HHS
Arkansas Children's Hospital Jun 2018 · 4.5K affected	Jun 2018	4.5K	HHS
Gillette Medical Imaging Jan 2018 · 4.5K affected	Jan 2018	4.5K	HHS
FHN Family Counseling Center Nov 2018 · 4.5K affected	Nov 2018	4.5K	HHS
Choice Rehabilitation Dec 2018 · 4.3K affected	Dec 2018	4.3K	HHS
American Medical Response Sept 2018 · 4.3K affected	Sept 2018	4.3K	2 sources ▾ HHS CA AG
Integrated Rehab Consultants Apr 2018 · 4.3K affected	Apr 2018	4.3K	HHS
Western Pathology Aug 2018 · 4.1K affected	Aug 2018	4.1K	2 sources ▾ HHS CA AG
Central Colorado Dermatology Aug 2018 · 4.1K affected	Aug 2018	4.1K	HHS
BioIQ May 2018 · 4.1K affected	May 2018	4.1K	HHS
Tillamook Chiropractic Oct 2018 · 4.1K affected	Oct 2018	4.1K	HHS
Arthritis & Osteoporosis Consultants of the Carolinas Nov 2018 · 3.9K affected	Nov 2018	3.9K	HHS
Institute on Aging May 2018 · 3.9K affected	May 2018	3.9K	2 sources ▾ HHS CA AG
InfuSystem Jun 2018 · 3.9K affected	Jun 2018	3.9K	HHS
Texas Health Physicians Apr 2018 · 3.8K affected	Apr 2018	3.8K	HHS
Ruben U. Carvajal, MD Jul 2018 · 3.8K affected	Jul 2018	3.8K	HHS
Cambridge Dental Consulting May 2018 · 3.8K affected	May 2018	3.8K	HHS
The Arc of Erie County Mar 2018 · 3.8K affected	Mar 2018	3.8K	HHS
RISE Wisconsin Jun 2018 · 3.7K affected	Jun 2018	3.7K	HHS
Hunt Regional Medical Center May 2018 · 3.7K affected	May 2018	3.7K	2 sources ▾ HHS CA AG
University of Michigan/Michigan Medicine Jun 2018 · 3.6K affected	Jun 2018	3.6K	HHS
Cigna Oct 2018 · 3.5K affected	Oct 2018	3.5K	HHS
Baptist Health May 2018 · 3.5K affected	May 2018	3.5K	HHS
Reichert Prosthetics & Orthotics Sept 2018 · 3.4K affected	Sept 2018	3.4K	HHS
North Texas Medical Center Mar 2018 · 3.4K affected	Mar 2018	3.4K	HHS
Steven Yang, D.D.S Jan 2018 · 3.2K affected	Jan 2018	3.2K	2 sources ▾ HHS CA AG
J.A. Stokes Sept 2018 · 3.2K affected	Sept 2018	3.2K	HHS
MAXIMUS Apr 2018 · 3K affected	Apr 2018	3K	HHS
Medical Center Ophthalmology Associates Apr 2018 · 3K affected	Apr 2018	3K	HHS
Hormone Logics Oct 2018 · 3K affected	Oct 2018	3K	HHS
Dr. Robert Carpenter Oct 2018 · 3K affected	Oct 2018	3K	HHS
Don White, RN, DC Aug 2018 · 2.9K affected	Aug 2018	2.9K	HHS
Scenic Bluffs Health Center Apr 2018 · 2.9K affected	Apr 2018	2.9K	HHS
Health Alliance Plan Jul 2018 · 2.8K affected	Jul 2018	2.8K	HHS
UT Physicians May 2018 · 2.8K affected	May 2018	2.8K	HHS
Midwestern Regional Medical Center Jul 2018 · 2.7K affected	Jul 2018	2.7K	HHS
Milligan Chiropractic Jan 2018 · 2.6K affected	Jan 2018	2.6K	2 sources ▾ HHS CA AG
Virtual Radiologic Professionals Dec 2018 · 2.6K affected	Dec 2018	2.6K	HHS
Eye Care Surgery Center Apr 2018 · 2.6K affected	Apr 2018	2.6K	HHS
Tiger Vision Apr 2018 · 2.6K affected	Apr 2018	2.6K	HHS
J&J MEDICAL SERVICE NETWORK Sept 2018 · 2.5K affected	Sept 2018	2.5K	HHS
Gwenn S Robinson MD Jun 2018 · 2.5K affected	Jun 2018	2.5K	HHS
Partners HealthCare System Feb 2018 · 2.5K affected	Feb 2018	2.5K	HHS
Rocky Mountain Health Care Services Jul 2018 · 2.4K affected	Jul 2018	2.4K	HHS
ViaTech Publishing Solutions Apr 2018 · 2.4K affected	Apr 2018	2.4K	HHS
Southwest Washington Regional Surgery Center May 2018 · 2.4K affected	May 2018	2.4K	2 sources ▾ HHS WA AG
West Sound Treatment Center Oct 2018 · 2.3K affected	Oct 2018	2.3K	HHS
OrthoWest May 2018 · 2.3K affected	May 2018	2.3K	HHS
Kent County Community Mental Health Authority Dec 2018 · 2.3K affected	Dec 2018	2.3K	HHS
Ambercare Jul 2018 · 2.3K affected	Jul 2018	2.3K	HHS
Cambridge Health Alliance Mar 2018 · 2.3K affected	Mar 2018	2.3K	HHS
South Alamo Medical Group P.A Aug 2018 · 2.2K affected	Aug 2018	2.2K	HHS
Dignity Health St. Rose Dominican Hospitals-DeLIma May 2018 · 2.2K affected	May 2018	2.2K	HHS
OrthoTexas Physicians and Surgeons Nov 2018 · 2.2K affected	Nov 2018	2.2K	HHS
PA Dept. of Human Services Jul 2018 · 2.1K affected	Jul 2018	2.1K	HHS
Leon A Cohen MM.,PA Dec 2018 · 2.1K affected	Dec 2018	2.1K	HHS
Chesapeake Regional Medical Center Apr 2018 · 2.1K affected	Apr 2018	2.1K	HHS
Dignity Health St. Rose Dominican Hospitals May 2018 · 2.1K affected	May 2018	2.1K	HHS
RSC Insurance Brokerage Aug 2018 · 2.1K affected	Aug 2018	2.1K	2 sources ▾ HHS CA AG
New York City Human Resources Administration/Department of Social Services May 2018 · 2.1K affected	May 2018	2.1K	HHS
Family Medical Group Northeast Aug 2018 · 2.1K affected	Aug 2018	2.1K	HHS
Northwest Surgical Specialists Oct 2018 · 2.1K affected	Oct 2018	2.1K	HHS
Chapman & Chapman Aug 2018 · 2K affected	Aug 2018	2K	HHS
Family Tree Relief Nursery Aug 2018 · 2K affected	Aug 2018	2K	HHS
Massac County Surgery Center Jun 2018 · 2K affected	Jun 2018	2K	HHS
Quality-Care Pharmacy Mar 2018 · 2K affected	Mar 2018	2K	2 sources ▾ HHS CA AG
Mercy Medical Center- North Iowa Nov 2018 · 2K affected	Nov 2018	2K	HHS
Butler County Board of County Commissioners Dec 2018 · 1.9K affected	Dec 2018	1.9K	HHS
Hunt Memorial Hospital District Jun 2018 · 1.9K affected	Jun 2018	1.9K	HHS
University of Virginia Medical Center Feb 2018 · 1.9K affected	Feb 2018	1.9K	HHS
Alive Hospice Jul 2018 · 1.9K affected	Jul 2018	1.9K	HHS
John J. Pershing VA Medical Center Mar 2018 · 1.8K affected	Mar 2018	1.8K	HHS
Personal Assistance Services of Colorado Sept 2018 · 1.8K affected	Sept 2018	1.8K	HHS
ConnectiCare Feb 2018 · 1.8K affected	Feb 2018	1.8K	HHS
CoreLink Administrative Solutions Aug 2018 · 1.8K affected	Aug 2018	1.8K	HHS
CHRISTUS Spohn Hospital Corpus Christi-Shoreline Jun 2018 · 1.8K affected	Jun 2018	1.8K	HHS
Dallas County Mental Health Mental Retardation Center Nov 2018 · 1.8K affected	Nov 2018	1.8K	HHS
Authentic Recovery Center Jun 2018 · 1.8K affected	Jun 2018	1.8K	2 sources ▾ HHS CA AG
TMC HealthCare Sept 2018 · 1.8K affected	Sept 2018	1.8K	HHS
Echo Canyon Healthcare May 2018 · 1.8K affected	May 2018	1.8K	HHS
UnitedHealth Mar 2018 · 1.8K affected	Mar 2018	1.8K	HHS
Capitol Administrators Jan 2018 · 1.7K affected	Jan 2018	1.7K	2 sources ▾ HHS CA AG
The Trustees of Purdue University May 2018 · 1.7K affected	May 2018	1.7K	HHS
Worldwide Insurance Services Apr 2018 · 1.7K affected	Apr 2018	1.7K	HHS
Forrest General Hospital Feb 2018 · 1.7K affected	Feb 2018	1.7K	HHS
Henry Ford Health System Apr 2018 · 1.7K affected	Apr 2018	1.7K	HHS
Advanced Orthopedic Center Jul 2018 · 1.6K affected	Jul 2018	1.6K	HHS
Terros Jun 2018 · 1.6K affected	Jun 2018	1.6K	HHS
VA Palo Alto Health Care System Mar 2018 · 1.6K affected	Mar 2018	1.6K	HHS
Blue Cross & Blue Shield of Rhode Island Sept 2018 · 1.6K affected	Sept 2018	1.6K	HHS
Simonian Sports Medicine Clinic Sept 2018 · 1.5K affected	Sept 2018	1.5K	HHS
Memorial Hospital at Gulfport Feb 2018 · 1.5K affected	Feb 2018	1.5K	HHS
Robert Smith DMD Jan 2018 · 1.5K affected	Jan 2018	1.5K	HHS
Rockdale Blackhawk Sept 2018 · 1.5K affected	Sept 2018	1.5K	HHS
West Kendall Baptist Hospital Apr 2018 · 1.5K affected	Apr 2018	1.5K	HHS
Southwest Oregon IPA Sept 2018 · 1.4K affected	Sept 2018	1.4K	HHS
Indiana University School of Medicine Oct 2018 · 1.4K affected	Oct 2018	1.4K	HHS
inSite Digestive Health Care Mar 2018 · 1.4K affected	Mar 2018	1.4K	HHS
Saint Francis Hospital Mar 2018 · 1.4K affected	Mar 2018	1.4K	HHS
Hopebridge Aug 2018 · 1.4K affected	Aug 2018	1.4K	HHS
Dino-Peds May 2018 · 1.4K affected	May 2018	1.4K	HHS
Complete Family Medicine Apr 2018 · 1.3K affected	Apr 2018	1.3K	HHS
Dean Health Plan Jun 2018 · 1.3K affected	Jun 2018	1.3K	HHS
Anne Arundel Dermatology, P.A Aug 2018 · 1.3K affected	Aug 2018	1.3K	HHS
Palomar Health Jan 2018 · 1.3K affected	Jan 2018	1.3K	HHS
Progressions Behavioral Health Services Jun 2018 · 1.3K affected	Jun 2018	1.3K	HHS
InterAct of Michigan Aug 2018 · 1.3K affected	Aug 2018	1.3K	HHS
The University of Texas MD Anderson Cancer Center May 2018 · 1.3K affected	May 2018	1.3K	HHS
New Jersey Department of Human Services Jun 2018 · 1.3K affected	Jun 2018	1.3K	HHS
Associated Dermatology & Skin Cancer Clinic of Helena Jun 2018 · 1.3K affected	Jun 2018	1.3K	HHS
SUNY Upstate Medical University Nov 2018 · 1.2K affected	Nov 2018	1.2K	HHS
DJO Jan 2018 · 1.2K affected	Jan 2018	1.2K	HHS
Center for Comprehensive Services Mar 2018 · 1.2K affected	Mar 2018	1.2K	HHS
San Francisco Department of Public Health Nov 2018 · 1.2K affected	Nov 2018	1.2K	2 sources ▾ HHS CA AG
Monroe Operations Aug 2018 · 1.2K affected	Aug 2018	1.2K	HHS
Benefit Outsourcing Solutions Jun 2018 · 1.1K affected	Jun 2018	1.1K	HHS
Rocky Mountain Women's Health Center Jan 2018 · 1.1K affected	Jan 2018	1.1K	HHS
CCRM Dallas-Fort Worth Nov 2018 · 1.1K affected	Nov 2018	1.1K	HHS
Guardant Health Sept 2018 · 1.1K affected	Sept 2018	1.1K	HHS
MorshedEye Apr 2018 · 1.1K affected	Apr 2018	1.1K	HHS
Polk County Health Services Apr 2018 · 1.1K affected	Apr 2018	1.1K	HHS
Front Range Dermatology Associates Mar 2018 · 1.1K affected	Mar 2018	1.1K	HHS
Penn Medicine Jan 2018 · 1.1K affected	Jan 2018	1.1K	HHS
RoxSan Pharmacy Mar 2018 · 1K affected	Mar 2018	1K	HHS
Tift Regional Medical Center Dec 2018 · 1K affected	Dec 2018	1K	HHS
VA Long Beach Healthcare System Jun 2018 · 1K affected	Jun 2018	1K	HHS
The Pediatric Endocrinology and Diabetes Specialists Jan 2018 · 1K affected	Jan 2018	1K	HHS
National Mentor Healthcare Mar 2018 · 1K affected	Mar 2018	1K	HHS
Fort Defiance Indian Hospital Dec 2018 · 1K affected	Dec 2018	1K	HHS
Alpha-Omega Endocrinology, Diabetes and Metabolism Center Dec 2018 · 1K affected	Dec 2018	1K	HHS
Missouri Dept. of Mental Health Feb 2018 · 1K affected	Feb 2018	1K	HHS
Mentor ABI Mar 2018 · 994 affected	Mar 2018	994	HHS
Coastal Cape Fear Eye Associates, P.A Feb 2018 · 925 affected	Feb 2018	925	HHS
American Medical Response Nov 2018 · 912 affected	Nov 2018	912	HHS
SEIU Local 32BJ, District 36 Building Operators Welfare Trust Fund Dec 2018 · 911 affected	Dec 2018	911	HHS
Smile Designs by Sandwick Dec 2018 · 900 affected	Dec 2018	900	HHS
Kaiser Foundation Health Plan of Colorado Aug 2018 · 900 affected	Aug 2018	900	HHS
East End Disability Associates Nov 2018 · 896 affected	Nov 2018	896	HHS
Artesia General Hospital Feb 2018 · 864 affected	Feb 2018	864	HHS
Boston Health Care for the Homeless Program Sept 2018 · 861 affected	Sept 2018	861	HHS
Home for Little Wanderers Jul 2018 · 861 affected	Jul 2018	861	HHS
Total Diagnostix II Sept 2018 · 855 affected	Sept 2018	855	HHS
WEA Insurance Dec 2018 · 850 affected	Dec 2018	850	HHS
United Methodist Homes Aug 2018 · 843 affected	Aug 2018	843	HHS
Western Washington Medical Jan 2018 · 842 affected	Jan 2018	842	HHS
Capital District Physicians’ Health Plan Apr 2018 · 839 affected	Apr 2018	839	HHS
Gentle Dentistry Sept 2018 · 831 affected	Sept 2018	831	HHS
Central New York Cardiology Jul 2018 · 824 affected	Jul 2018	824	HHS
Oklahoma Department of Human Services Oct 2018 · 813 affected	Oct 2018	813	HHS
Diagnostic Radiology & Imaging Apr 2018 · 800 affected	Apr 2018	800	HHS
Center for Sports Medicine and Orthopedics Feb 2018 · 800 affected	Feb 2018	800	HHS
Alicia Ann Oswald Jan 2018 · 800 affected	Jan 2018	800	HHS
Charles Cole Memorial Hospital Jul 2018 · 790 affected	Jul 2018	790	HHS
Wisconsin Department of Health Services Apr 2018 · 779 affected	Apr 2018	779	HHS
CoreSource Aug 2018 · 769 affected	Aug 2018	769	HHS
David S. Ng, O.D Jun 2018 · 758 affected	Jun 2018	758	HHS
Walmart Feb 2018 · 741 affected	Feb 2018	741	HHS
Dermatologists of Southwest Ohio Dec 2018 · 733 affected	Dec 2018	733	HHS
CHI Health Care Nov 2018 · 722 affected	Nov 2018	722	HHS
Pulse Systems Sept 2018 · 722 affected	Sept 2018	722	HHS
Children’s National Medical Center Mar 2018 · 722 affected	Mar 2018	722	HHS
Lane County Health & Human Services Aug 2018 · 715 affected	Aug 2018	715	HHS
Physician Associates Jul 2018 · 710 affected	Jul 2018	710	HHS
University Of Missouri Health Oct 2018 · 706 affected	Oct 2018	706	HHS
Day Kimball Healthcare Oct 2018 · 698 affected	Oct 2018	698	HHS
Humana Dec 2018 · 684 affected	Dec 2018	684	HHS
StatCare Jul 2018 · 679 affected	Jul 2018	679	HHS
Prestera Center for Mental Health Services Mar 2018 · 670 affected	Mar 2018	670	HHS
Southwestern Eye Center Aug 2018 · 667 affected	Aug 2018	667	HHS
Atchison Hospital Association Apr 2018 · 667 affected	Apr 2018	667	HHS
Sonoma County Indian Health Project Mar 2018 · 662 affected	Mar 2018	662	2 sources ▾ HHS CA AG
Eastern Maine Medical Center Feb 2018 · 660 affected	Feb 2018	660	HHS
DePaul University Dec 2018 · 656 affected	Dec 2018	656	HHS
Central States Southeast and Southwest Areas Health and Welfare Fund Jan 2018 · 634 affected	Jan 2018	634	HHS
Blue Cross and Blue Shield of North Carolina Oct 2018 · 631 affected	Oct 2018	631	HHS
Peter J Parker, M.D Jun 2018 · 628 affected	Jun 2018	628	HHS
Overlake Arthritis and Osteoporosis Center May 2018 · 627 affected	May 2018	627	2 sources ▾ HHS WA AG
California College of Arts Feb 2018 · 623 affected	Feb 2018	623	HHS
Healthland Jun 2018 · 614 affected	Jun 2018	614	HHS
University of Utah Health Jun 2018 · 607 affected	Jun 2018	607	HHS
Hancock County Board of Developmental Disabilities May 2018 · 607 affected	May 2018	607	HHS
High Plains Surgical Associates Jan 2018 · 607 affected	Jan 2018	607	HHS
Care Partners Hospice and Palliative Care May 2018 · 600 affected	May 2018	600	HHS
Thielen Student Health Center Nov 2018 · 599 affected	Nov 2018	599	HHS
SimplyWell Jun 2018 · 597 affected	Jun 2018	597	HHS
New York City Health and Hospitals Mar 2018 · 595 affected	Mar 2018	595	HHS
Massachusetts General Hospital Dec 2018 · 588 affected	Dec 2018	588	HHS
New Mexico Retiree Health Care Authority Oct 2018 · 586 affected	Oct 2018	586	HHS
Catholic Charities Neighborhood Services Sept 2018 · 565 affected	Sept 2018	565	HHS
Wardell Orthopaedics Aug 2018 · 552 affected	Aug 2018	552	HHS
City of Detroit Feb 2018 · 544 affected	Feb 2018	544	HHS
Utah Healing Center Nov 2018 · 543 affected	Nov 2018	543	HHS
Denise M. Bowden, LAc Apr 2018 · 538 affected	Apr 2018	538	2 sources ▾ HHS CA AG
Cornerstone Foot & Ankle Apr 2018 · 533 affected	Apr 2018	533	HHS
Summit Medical Nov 2018 · 525 affected	Nov 2018	525	HHS
Nebraska Department of Health and Human Services Sept 2018 · 516 affected	Sept 2018	516	HHS
Planned Parenthood of the Heartland Jun 2018 · 515 affected	Jun 2018	515	HHS
Highmark Delaware May 2018 · 508 affected	May 2018	508	HHS
State of Alaska Department of Health and Social Services Jun 2018 · 501 affected	Jun 2018	501	HHS
Riverside Medical Center Apr 2018 · 501 affected	Apr 2018	501	HHS
Ben-Ora, Hansen & Vanesian Imaging Dec 2018 · 500 affected	Dec 2018	500	HHS
Texas VSI Nov 2018 · 500 affected	Nov 2018	500	HHS
The University of Texas Health Science Center at Houston Sept 2018 · 500 affected	Sept 2018	500	HHS
Leominster Dermatology Sept 2018 · 500 affected	Sept 2018	500	HHS
First coast podiatric surgery and wound Aug 2018 · 500 affected	Aug 2018	500	HHS
Family Physicians of Old Town Fairfax Jul 2018 · 500 affected	Jul 2018	500	HHS
Family Healthcare of Lake Norman Jun 2018 · 500 affected	Jun 2018	500	HHS
Baystate Family Dental May 2018 · 500 affected	May 2018	500	HHS
Rebound Orthopedics & Neurosurgery May 2018 · 1.6K WA residents	May 2018	1.6K WA residents	WA AG

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Breach data from Have I Been Pwned, licensed under CC BY 4.0; the U.S. Department of Health and Human Services' breach portal; and the public breach notices of the California and Washington Attorneys General (Washington counts are state residents only). Sensitive breaches (such as adult and dating sites), spam lists, fabricated breaches and malware logs aren't listed.