256 healthcare data breaches in 2015

Every breach of health information in 2015, 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.

Search 2015 healthcare breaches Ctrl K

Biggest first

Breach	Date	Affected	Source
Anthem Feb 2015 · 78.8M affected	Feb 2015	78.8M	2 sources ▾ HHS CA AG
Premera Blue Cross Mar 2015 · 11M affected	Mar 2015	11M	HHS
Excellus Health Plan Sept 2015 · 9.4M affected	Sept 2015	9.4M	HHS
University of California, Los Angeles Health Jul 2015 · 4.5M affected	Jul 2015	4.5M	HHS
Medical Informatics Engineering Jul 2015 · 3.5M affected	Jul 2015	3.5M	HHS
21st Century Oncology Oct 2015 · 2.2M affected	Oct 2015	2.2M	3 sources ▾ HHS CA AG WA AG
Virginia Department of Medical Assistance Services Mar 2015 · 697.6K affected	Mar 2015	697.6K	HHS
Atrium Health Jan 2015 · 586K affected	Jan 2015	586K	View breach
Georgia Department of Community Health Mar 2015 · 557.8K affected	Mar 2015	557.8K	HHS
Empi Aug 2015 · 160K affected	Aug 2015	160K	HHS
Advantage Consolidated Feb 2015 · 151.6K affected	Feb 2015	151.6K	2 sources ▾ HHS CA AG
Jacobi Medical Center Apr 2015 · 90.1K affected	Apr 2015	90.1K	HHS
OH Muhlenberg Nov 2015 · 84.7K affected	Nov 2015	84.7K	HHS
City of Philadelphia Fire Department Emergency Medical Services Unit Apr 2015 · 81.5K affected	Apr 2015	81.5K	HHS
Tennessee Rural Health Improvement Association Jan 2015 · 79K affected	Jan 2015	79K	HHS
North East Medical Services Jul 2015 · 69.2K affected	Jul 2015	69.2K	2 sources ▾ HHS CA AG
St.Vincent Hospital and Health Care Center Feb 2015 · 63.3K affected	Feb 2015	63.3K	HHS
Boston Baskin Cancer Foundation Feb 2015 · 56.7K affected	Feb 2015	56.7K	HHS
Molina Healthcare Sept 2015 · 54.2K affected	Sept 2015	54.2K	HHS
Lancaster County EMS Jun 2015 · 50K affected	Jun 2015	50K	HHS
AT&T Group Health Plan Mar 2015 · 50K affected	Mar 2015	50K	HHS
Aspire Indiana Jan 2015 · 43.9K affected	Jan 2015	43.9K	HHS
Freelancers Insurance Mar 2015 · 43.1K affected	Mar 2015	43.1K	HHS
Seton Family of Hospitals Apr 2015 · 39K affected	Apr 2015	39K	HHS
Indiana State Medical Association Mar 2015 · 38.4K affected	Mar 2015	38.4K	HHS
Keenan & Associates Oct 2015 · 35.4K affected	Oct 2015	35.4K	2 sources ▾ HHS CA AG
St. Luke's Cornwall Hospital Dec 2015 · 29.2K affected	Dec 2015	29.2K	HHS
Saint Agnes Health Care Apr 2015 · 25K affected	Apr 2015	25K	HHS
Blue Shield of California Sept 2015 · 20.8K affected	Sept 2015	20.8K	2 sources ▾ HHS CA AG
Medical Management May 2015 · 20.5K affected	May 2015	20.5K	HHS
South Sunflower County Hospital Feb 2015 · 19K affected	Feb 2015	19K	HHS
Global Care Delivery Jun 2015 · 18.2K affected	Jun 2015	18.2K	HHS
Children's National Medical Center Feb 2015 · 18K affected	Feb 2015	18K	HHS
Oakland Family Services Sept 2015 · 16.1K affected	Sept 2015	16.1K	HHS
Children's Medical Clinics of East Texas Oct 2015 · 16K affected	Oct 2015	16K	HHS
Mary Ruth Buchness, MD, Dermatologist Dec 2015 · 14.9K affected	Dec 2015	14.9K	HHS
Louisiana State University Health Sciences Center-New Orleans Sept 2015 · 14.5K affected	Sept 2015	14.5K	HHS
Sacred Heart Health System Mar 2015 · 14.2K affected	Mar 2015	14.2K	HHS
UMass Memorial Medical Jan 2015 · 14.1K affected	Jan 2015	14.1K	HHS
Oregon's Health CO-OP Jun 2015 · 14K affected	Jun 2015	14K	HHS
Pediatric Gastroenterology, Hepatology & Nutrition of Florida, P.A Aug 2015 · 13K affected	Aug 2015	13K	HHS
Siouxland Anesthesiology Jul 2015 · 13K affected	Jul 2015	13K	HHS
CVS Health Jun 2015 · 12.9K affected	Jun 2015	12.9K	HHS
The McLean Hospital Jul 2015 · 12.7K affected	Jul 2015	12.7K	HHS
Montefiore Medical Center Jul 2015 · 12.5K affected	Jul 2015	12.5K	HHS
Concordia Plan Services Apr 2015 · 12.5K affected	Apr 2015	12.5K	HHS
Implants, Dentures & Dental Jun 2015 · 12K affected	Jun 2015	12K	HHS
Emergence Health Network Oct 2015 · 11.1K affected	Oct 2015	11.1K	HHS
Cottage Health Oct 2015 · 11K affected	Oct 2015	11K	2 sources ▾ HHS CA AG
SUPERVALU Group Health Plan Apr 2015 · 10.9K affected	Apr 2015	10.9K	HHS
Pediatric Aug 2015 · 10K affected	Aug 2015	10K	HHS
National Seating & Mobility Jun 2015 · 9.6K affected	Jun 2015	9.6K	HHS
University of Oklahoma Department of Urology Oct 2015 · 9.3K affected	Oct 2015	9.3K	HHS
orlantino dyoco, M.D Jun 2015 · 9K affected	Jun 2015	9K	2 sources ▾ HHS CA AG
Pittman Family Dental Dec 2015 · 8.8K affected	Dec 2015	8.8K	HHS
Children's Heart Center Apr 2015 · 8.8K affected	Apr 2015	8.8K	HHS
Florida Hospital Mar 2015 · 8.7K affected	Mar 2015	8.7K	HHS
Marketing Clique Feb 2015 · 8.7K affected	Feb 2015	8.7K	HHS
Walgreen May 2015 · 8.3K affected	May 2015	8.3K	HHS
Thomas H. Boyd Memorial Hospital May 2015 · 8.3K affected	May 2015	8.3K	HHS
Centene Management Oct 2015 · 8.2K affected	Oct 2015	8.2K	HHS
Project Vida Health Center Mar 2015 · 7.7K affected	Mar 2015	7.7K	HHS
University of Oklahoma, Department of Obstetrics and Gynecology Jul 2015 · 7.7K affected	Jul 2015	7.7K	HHS
FireKeepers Casino Hotel Jul 2015 · 7.7K affected	Jul 2015	7.7K	HHS
Children's Hospital Medical Center of Akron Aug 2015 · 7.7K affected	Aug 2015	7.7K	HHS
Integral Health Plan Jul 2015 · 7.5K affected	Jul 2015	7.5K	HHS
Dr. Anthony T. R. Green DDS Mar 2015 · 7.4K affected	Mar 2015	7.4K	HHS
Western Montana Clinic Apr 2015 · 7K affected	Apr 2015	7K	HHS
VA Corporate Data Center Operations/Austin Information Technology Center Jan 2015 · 7K affected	Jan 2015	7K	HHS
Amedisys Mar 2015 · 6.9K affected	Mar 2015	6.9K	HHS
Fred Finch Youth Center Jun 2015 · 6.9K affected	Jun 2015	6.9K	HHS
The Department of Aging and Disability Services Jun 2015 · 6.6K affected	Jun 2015	6.6K	HHS
Baptist Health and Arkansas Health Oct 2015 · 6.5K affected	Oct 2015	6.5K	HHS
Urology Associates, Professional Jul 2015 · 6.5K affected	Jul 2015	6.5K	HHS
Allina Health Apr 2015 · 6.2K affected	Apr 2015	6.2K	HHS
Aflac May 2015 · 6.2K affected	May 2015	6.2K	HHS
International Union of Operating Engineers Local Unions 181, 320 & TVA Health and Welfare Trust Fund Apr 2015 · 5.4K affected	Apr 2015	5.4K	HHS
Healthfirst Affiliates that include Healthfirst PHSP Jul 2015 · 5.3K affected	Jul 2015	5.3K	HHS
Northwest Primary Care Dec 2015 · 5.3K affected	Dec 2015	5.3K	HHS
St. Peter's Health Partners Jan 2015 · 5.1K affected	Jan 2015	5.1K	HHS
Planned Parenthood Southwest Ohio Feb 2015 · 5K affected	Feb 2015	5K	HHS
Rainier Surgical Jan 2015 · 4.9K affected	Jan 2015	4.9K	HHS
Consolidated Tribal Health Project Apr 2015 · 4.9K affected	Apr 2015	4.9K	2 sources ▾ HHS CA AG
Associated Dentists-Roseville Office May 2015 · 4.7K affected	May 2015	4.7K	HHS
Clinical Reference Laboratory Mar 2015 · 4.7K affected	Mar 2015	4.7K	HHS
Indian Territory Home Health and Hospice Oct 2015 · 4.5K affected	Oct 2015	4.5K	HHS
Huntington Medical Research Institutes Oct 2015 · 4.3K affected	Oct 2015	4.3K	HHS
Aspire Home Care and Hospice Oct 2015 · 4.3K affected	Oct 2015	4.3K	HHS
Central Brooklyn Medical Jun 2015 · 4.2K affected	Jun 2015	4.2K	HHS
EyeCare of Bartlesville Mar 2015 · 4K affected	Mar 2015	4K	HHS
Saint Louis County Department of Health Jan 2015 · 4K affected	Jan 2015	4K	HHS
New York City Health and Hospitals Jun 2015 · 4K affected	Jun 2015	4K	HHS
St. Mary's Health Mar 2015 · 4K affected	Mar 2015	4K	HHS
Blue Cross Blue Shield of Michigan Mar 2015 · 3.9K affected	Mar 2015	3.9K	HHS
Midlands Orthopaedics, P.A Nov 2015 · 3.9K affected	Nov 2015	3.9K	HHS
Heartland Health Clinic Sept 2015 · 3.7K affected	Sept 2015	3.7K	HHS
Orlando Health Jul 2015 · 3.4K affected	Jul 2015	3.4K	HHS
University of Rochester Medical Center May 2015 · 3.4K affected	May 2015	3.4K	HHS
Bellevue Hospital Center Apr 2015 · 3.3K affected	Apr 2015	3.3K	HHS
Partners HealthCare System May 2015 · 3.3K affected	May 2015	3.3K	HHS
Skin and Cancer Center of Arizona Sept 2015 · 3.3K affected	Sept 2015	3.3K	HHS
Cathrine Steinborn DDS Jan 2015 · 3.2K affected	Jan 2015	3.2K	2 sources ▾ HHS CA AG
ADT Apr 2015 · 3.1K affected	Apr 2015	3.1K	HHS
St. Martin Parish School Based Health Centers Jun 2015 · 3K affected	Jun 2015	3K	HHS
University of Illinois at Chicago Apr 2015 · 3K affected	Apr 2015	3K	HHS
Hunt Regional Medical Partners Feb 2015 · 3K affected	Feb 2015	3K	HHS
Suburban Lung Associates Apr 2015 · 3K affected	Apr 2015	3K	HHS
Georgia Department of Human Services Jul 2015 · 3K affected	Jul 2015	3K	HHS
Centegra Health System Dec 2015 · 2.9K affected	Dec 2015	2.9K	HHS
Insurance Data Services Oct 2015 · 2.9K affected	Oct 2015	2.9K	HHS
Robert D. Chatlos DMD & Assoc Oct 2015 · 2.9K affected	Oct 2015	2.9K	HHS
CarePlus Health Plans Oct 2015 · 2.9K affected	Oct 2015	2.9K	HHS
Heartland Dental Jun 2015 · 2.9K affected	Jun 2015	2.9K	HHS
Humana Sept 2015 · 2.8K affected	Sept 2015	2.8K	HHS
Courier Feb 2015 · 2.8K affected	Feb 2015	2.8K	HHS
Senior Health Partners Feb 2015 · 2.8K affected	Feb 2015	2.8K	HHS
Career Education Mar 2015 · 2.7K affected	Mar 2015	2.7K	HHS
United Seating and Mobility Jun 2015 · 2.7K affected	Jun 2015	2.7K	HHS
CompuNet Clinical Laboratories Apr 2015 · 2.6K affected	Apr 2015	2.6K	HHS
San Franciso General Hospital and Trauma Center Mar 2015 · 2.5K affected	Mar 2015	2.5K	HHS
Life Care Center of Attleboro Mar 2015 · 2.5K affected	Mar 2015	2.5K	HHS
Henry Ford Health System Jan 2015 · 2.3K affected	Jan 2015	2.3K	HHS
Good Care Pediatric Nov 2015 · 2.3K affected	Nov 2015	2.3K	HHS
UPMC May 2015 · 2.3K affected	May 2015	2.3K	HHS
Anne Arundel Health System Oct 2015 · 2.2K affected	Oct 2015	2.2K	HHS
Mosaic Medical Mar 2015 · 2.2K affected	Mar 2015	2.2K	HHS
Raymond Mark Turner, M.D Feb 2015 · 2.2K affected	Feb 2015	2.2K	HHS
Kaiser Foundation Hospitals, Northern California Jan 2015 · 2.1K affected	Jan 2015	2.1K	2 sources ▾ HHS CA AG
Sunquest Information Systems Sept 2015 · 2.1K affected	Sept 2015	2.1K	HHS
Daniel A. Sheldon, M.D., P.A Sept 2015 · 2.1K affected	Sept 2015	2.1K	HHS
Lawrence General Hospital Aug 2015 · 2.1K affected	Aug 2015	2.1K	HHS
T.J. Samson Community Hospital Aug 2015 · 2.1K affected	Aug 2015	2.1K	HHS
ROBERT SOPER, M.D Jun 2015 · 2K affected	Jun 2015	2K	2 sources ▾ HHS CA AG
Max M Bayard MD Aug 2015 · 2K affected	Aug 2015	2K	HHS
Community Mercy Health Partners Apr 2015 · 2K affected	Apr 2015	2K	HHS
David E. Hansen DDS PS Jan 2015 · 2K affected	Jan 2015	2K	HHS
Bon Secours Saint Francis Oct 2015 · 2K affected	Oct 2015	2K	HHS
Blue Cross and Blue Shield of Nebraska Dec 2015 · 1.9K affected	Dec 2015	1.9K	HHS
mdINR Jan 2015 · 1.9K affected	Jan 2015	1.9K	HHS
American Sleep Medicine Apr 2015 · 1.8K affected	Apr 2015	1.8K	2 sources ▾ HHS CA AG
Wellmont Health System Apr 2015 · 1.7K affected	Apr 2015	1.7K	HHS
Physicians Health Plan of Northern Indiana Dec 2015 · 1.7K affected	Dec 2015	1.7K	HHS
7-Eleven Mar 2015 · 1.7K affected	Mar 2015	1.7K	HHS
LTC Dental Oct 2015 · 1.7K affected	Oct 2015	1.7K	HHS
Prima CARE Jul 2015 · 1.7K affected	Jul 2015	1.7K	HHS
Colorado Department of Health Care Policy and Financing Aug 2015 · 1.6K affected	Aug 2015	1.6K	HHS
North Carolina Department of Health and Human Services Oct 2015 · 1.6K affected	Oct 2015	1.6K	HHS
Ronald D. Garrett-Roe, MD Jan 2015 · 1.6K affected	Jan 2015	1.6K	HHS
Woodhull Medical and Mental Health Center Oct 2015 · 1.6K affected	Oct 2015	1.6K	HHS
Duke LifePoint Conemaugh Memorial Medical Center May 2015 · 1.6K affected	May 2015	1.6K	HHS
Blue Cross Blue Shield of North Carolina Sept 2015 · 1.5K affected	Sept 2015	1.5K	HHS
Rush University Medical Center Nov 2015 · 1.5K affected	Nov 2015	1.5K	HHS
Lee Memorial Health System Sept 2015 · 1.5K affected	Sept 2015	1.5K	HHS
Carolyn B Lyde, MD, PA Nov 2015 · 1.5K affected	Nov 2015	1.5K	HHS
PT Northwest Aug 2015 · 1.5K affected	Aug 2015	1.5K	HHS
East Bay Perinatal Medical Associates Jun 2015 · 1.5K affected	Jun 2015	1.5K	2 sources ▾ HHS CA AG
Special Agents Mutual Benefit Association Jul 2015 · 1.5K affected	Jul 2015	1.5K	HHS
Triple S Advantage Mar 2015 · 1.5K affected	Mar 2015	1.5K	HHS
Minneapolis Clinic of Neurology Aug 2015 · 1.5K affected	Aug 2015	1.5K	HHS
Jersey City Medical Center Apr 2015 · 1.4K affected	Apr 2015	1.4K	HHS
Howard University Jul 2015 · 1.4K affected	Jul 2015	1.4K	HHS
Cancer Care Northwest Aug 2015 · 1.4K affected	Aug 2015	1.4K	HHS
PeaceHealth Nov 2015 · 1.4K affected	Nov 2015	1.4K	HHS
Mount Sinai Medical Center Mar 2015 · 1.4K affected	Mar 2015	1.4K	HHS
Endocrinology Associates Aug 2015 · 1.4K affected	Aug 2015	1.4K	HHS
HealthSouth Rehabilitation Hospital of Round Rock Dec 2015 · 1.4K affected	Dec 2015	1.4K	HHS
Sharon J. Jones, M.D Mar 2015 · 1.3K affected	Mar 2015	1.3K	2 sources ▾ HHS CA AG
Ventura County Health Care Agency May 2015 · 1.3K affected	May 2015	1.3K	HHS
Michael Benjamin, M.D Dec 2015 · 1.3K affected	Dec 2015	1.3K	HHS
HealthPoint Nov 2015 · 1.3K affected	Nov 2015	1.3K	HHS
Diana S. Guth Jan 2015 · 1.3K affected	Jan 2015	1.3K	HHS
New Dimension Nov 2015 · 1.3K affected	Nov 2015	1.3K	HHS
Nephropathology Associates Oct 2015 · 1.3K affected	Oct 2015	1.3K	HHS
Valley Community Healthcare Feb 2015 · 1.2K affected	Feb 2015	1.2K	2 sources ▾ HHS CA AG
Lancaster Cardiology Medical Group, and Sunder Heart Institute and Vascular Medical Clinic Aug 2015 · 1.2K affected	Aug 2015	1.2K	HHS
Horizon Healthcare Services Sept 2015 · 1.2K affected	Sept 2015	1.2K	HHS
Stanislaus Surgical Hospital Apr 2015 · 1.2K affected	Apr 2015	1.2K	2 sources ▾ HHS CA AG
VA Black Hills Health Care System Aug 2015 · 1.2K affected	Aug 2015	1.2K	HHS
OsteoMed Oct 2015 · 1.1K affected	Oct 2015	1.1K	HHS
Kindred Nursing Centers West Sept 2015 · 1.1K affected	Sept 2015	1.1K	HHS
Sioux Falls VA Health Care System Jul 2015 · 1.1K affected	Jul 2015	1.1K	HHS
UC Health Nov 2015 · 1.1K affected	Nov 2015	1.1K	HHS
Sentara Healthcare Oct 2015 · 1K affected	Oct 2015	1K	HHS
Children's Eyewear Sight Jan 2015 · 1K affected	Jan 2015	1K	HHS
Meritus Medical Center Jun 2015 · 1K affected	Jun 2015	1K	HHS
Barrington Orthopedic Specialists Sept 2015 · 1K affected	Sept 2015	1K	HHS
OhioHealth Jul 2015 · 1K affected	Jul 2015	1K	HHS
Baylor College of Medicine Aug 2015 · 1K affected	Aug 2015	1K	HHS
Unity Recovery May 2015 · 1K affected	May 2015	1K	HHS
Gallant Risk & Insurance Services Apr 2015 · 995 affected	Apr 2015	995	2 sources ▾ HHS CA AG
Pathways Professional Counseling Nov 2015 · 986 affected	Nov 2015	986	HHS
The MetroHealth System May 2015 · 981 affected	May 2015	981	HHS
WhiteGlove Health Dec 2015 · 975 affected	Dec 2015	975	HHS
Dean Health Plan Nov 2015 · 960 affected	Nov 2015	960	HHS
CDC/NIOSH World Trade Center Health Program Apr 2015 · 958 affected	Apr 2015	958	HHS
Haywood County NC Feb 2015 · 955 affected	Feb 2015	955	HHS
Middlesex Hospital Dec 2015 · 946 affected	Dec 2015	946	HHS
County of Los Angeles Apr 2015 · 880 affected	Apr 2015	880	2 sources ▾ HHS CA AG
CEMEX Apr 2015 · 880 affected	Apr 2015	880	HHS
McDermott Will & Emery LLP is the plan sponsor for the McDermott medical plan Mar 2015 · 880 affected	Mar 2015	880	HHS
Denton County Health Department Apr 2015 · 874 affected	Apr 2015	874	HHS
Elizabeth Kerner, M.D Apr 2015 · 873 affected	Apr 2015	873	HHS
Cigna-HealthSpring Apr 2015 · 862 affected	Apr 2015	862	HHS
Advanced Radiology Consultants Jul 2015 · 855 affected	Jul 2015	855	HHS
Belgrade Regional Health Center Dec 2015 · 854 affected	Dec 2015	854	HHS
University Hospitals Jan 2015 · 848 affected	Jan 2015	848	HHS
Merit Health Northwest Mississippi Aug 2015 · 846 affected	Aug 2015	846	HHS
Tulare County Health & Human Services Agency Mar 2015 · 845 affected	Mar 2015	845	2 sources ▾ HHS CA AG
California Physicians’ Service May 2015 · 843 affected	May 2015	843	2 sources ▾ HHS CA AG
BeHealthy Florida Oct 2015 · 835 affected	Oct 2015	835	HHS
University of Colorado Health Dec 2015 · 827 affected	Dec 2015	827	HHS
PIH Health Hospital Apr 2015 · 826 affected	Apr 2015	826	HHS
Camelback Women's Health Dec 2015 · 810 affected	Dec 2015	810	HHS
Metropolitan Atlanta Rapid Transit Authority Aug 2015 · 800 affected	Aug 2015	800	HHS
Health Plan sponsored by Covenant Ministries of Benevolance Apr 2015 · 782 affected	Apr 2015	782	HHS
St.Vincent Medical Apr 2015 · 756 affected	Apr 2015	756	HHS
Fidelis Care Dec 2015 · 738 affected	Dec 2015	738	HHS
UPMC Health Plan Jul 2015 · 722 affected	Jul 2015	722	HHS
Affinity Health Plan Sept 2015 · 721 affected	Sept 2015	721	HHS
Aventura Hospital and Medical Center Feb 2015 · 686 affected	Feb 2015	686	HHS
Tomas, Arturo Feb 2015 · 680 affected	Feb 2015	680	HHS
North Dallas Urogynecology Jan 2015 · 678 affected	Jan 2015	678	HHS
Oceans Acquisition Dec 2015 · 659 affected	Dec 2015	659	HHS
Community Health Network Mar 2015 · 650 affected	Mar 2015	650	HHS
Massachusetts General Hospital Jul 2015 · 648 affected	Jul 2015	648	HHS
SSM Health Cancer Care Oct 2015 · 643 affected	Oct 2015	643	HHS
Maricopa Special Health Care District Jul 2015 · 633 affected	Jul 2015	633	HHS
Alexian Brothers Medical Center May 2015 · 632 affected	May 2015	632	HHS
Kaiser Foundation Health Plan of the Mid-Atlantic States Jan 2015 · 630 affected	Jan 2015	630	HHS
Pediatric Associates Mar 2015 · 627 affected	Mar 2015	627	HHS
Amsterdam Nursing Home Jul 2015 · 621 affected	Jul 2015	621	HHS
Mayo Clinic Health System- Red Wing Jul 2015 · 601 affected	Jul 2015	601	HHS
Kane Hall Barry Neurology Mar 2015 · 600 affected	Mar 2015	600	HHS
Pathway to Hope Feb 2015 · 600 affected	Feb 2015	600	HHS
Cigna Home Delivery Pharmacy Nov 2015 · 592 affected	Nov 2015	592	HHS
The Johns Hopkins Hospital Oct 2015 · 571 affected	Oct 2015	571	HHS
Advance Rehabilitation & Consulting Mar 2015 · 570 affected	Mar 2015	570	HHS
BUFFALO HEART May 2015 · 567 affected	May 2015	567	HHS
New York State Office of Mental Health Apr 2015 · 563 affected	Apr 2015	563	HHS
New Mexico Department of Health Dec 2015 · 561 affected	Dec 2015	561	HHS
Arkansas Blue Cross and Blue Shield Jul 2015 · 560 affected	Jul 2015	560	HHS
Alaska Orthopedic Specialists Nov 2015 · 553 affected	Nov 2015	553	HHS
Schaeffler Group USA Apr 2015 · 550 affected	Apr 2015	550	HHS
EnvisionRx Oct 2015 · 540 affected	Oct 2015	540	HHS
ST Psychotherapy Dec 2015 · 509 affected	Dec 2015	509	HHS
Episcopal Health Services Jun 2015 · 509 affected	Jun 2015	509	HHS
VA Eastern Colorado Health Care System Apr 2015 · 508 affected	Apr 2015	508	HHS
Success 4 Kids & Families May 2015 · 506 affected	May 2015	506	HHS
Truman Medical Center Jun 2015 · 503 affected	Jun 2015	503	HHS
Health Care Service Sept 2015 · 501 affected	Sept 2015	501	HHS
Maine General Health Dec 2015 · 500 affected	Dec 2015	500	HHS
Florida Department of Health, Children's Medical Services Oct 2015 · 500 affected	Oct 2015	500	HHS
Keystone Pharmacy Jun 2015 · 500 affected	Jun 2015	500	HHS
Puerto Rico Department of Heatlh Apr 2015 · 500 affected	Apr 2015	500	HHS
New Mar 2015 · 500 affected	Mar 2015	500	HHS
National Pain Institute Jan 2015 · 500 affected	Jan 2015	500	HHS

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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.