457 data breaches before 2012

Every known breach before 2012, biggest first: how many people it hit (or Washington residents, for Washington notices), what was exposed, and where it was reported. A state notice with no breach date is listed under the year it was reported.

Monthly statistics (counts, trends, what leaked): Serus Data Breach Report

Ctrl K

Breach	Date	Affected	Source
MySpace Jul 2008 · 359.4M affected	Jul 2008	359.4M	View breach
Tianya Dec 2011 · 29M affected	Dec 2011	29M	HIBP
QIP Jun 2011 · 26.2M affected	Jun 2011	26.2M	HIBP
7k7k Jan 2011 · 9.1M affected	Jan 2011	9.1M	HIBP
Dodonew.com Dec 2011 · 8.7M affected	Dec 2011	8.7M	HIBP
Civil Online Jul 2011 · 7.8M affected	Jul 2011	7.8M	HIBP
17173 Dec 2011 · 7.5M affected	Dec 2011	7.5M	HIBP
China Software Developer Network Dec 2011 · 6.4M affected	Dec 2011	6.4M	View breach
Science Applications International Nov 2011 · 4.9M affected	Nov 2011	4.9M	HHS
Dangdang Jun 2011 · 4.8M affected	Jun 2011	4.8M	HIBP
Money Bookers Jan 2009 · 4.5M affected	Jan 2009	4.5M	HIBP
Neteller May 2010 · 3.6M affected	May 2010	3.6M	HIBP
Dominion Dental Services Aug 2010 · 3M affected	Aug 2010	3M	3 sources ▾ HHS CA AG WA AG
Duowan.com Jan 2011 · 2.6M affected	Jan 2011	2.6M	HIBP
gPotato Jul 2007 · 2.1M affected	Jul 2007	2.1M	HIBP
IBM Apr 2011 · 1.9M affected	Apr 2011	1.9M	HHS
GRM Information Management Services Feb 2011 · 1.7M affected	Feb 2011	1.7M	HHS
Elance Jan 2009 · 1.3M affected	Jan 2009	1.3M	HIBP
Gawker Dec 2010 · 1.2M affected	Dec 2010	1.2M	HIBP
AvMed Jun 2010 · 1.2M affected	Jun 2010	1.2M	HHS
The Nemours Foundation Oct 2011 · 1.1M affected	Oct 2011	1.1M	HHS
BlueCross BlueShield of Tennessee Nov 2010 · 1M affected	Nov 2010	1M	HHS
Sutter Medical Foundation Nov 2011 · 943.4K affected	Nov 2011	943.4K	HHS
Stratfor Dec 2011 · 859.8K affected	Dec 2011	859.8K	HIBP
Baby Names Oct 2008 · 846.7K affected	Oct 2008	846.7K	HIBP
Iron Mountain Data Products Jul 2010 · 800K affected	Jul 2010	800K	HHS
DivX SubTitles Jan 2010 · 783.1K affected	Jan 2010	783.1K	HIBP
Android Forums Oct 2011 · 745.4K affected	Oct 2011	745.4K	HIBP
Paddy Power Oct 2010 · 591K affected	Oct 2010	591K	HIBP
Battlefield Heroes Jun 2011 · 530.3K affected	Jun 2011	530.3K	HIBP
EISENHOWER MEDICAL CENTER Mar 2011 · 514.3K affected	Mar 2011	514.3K	HHS
Puerto Rico Department of Health Nov 2010 · 475K affected	Nov 2010	475K	HHS
Spartanburg Regional Healthcare System May 2011 · 400K affected	May 2011	400K	HHS
Triple-S Salud Nov 2010 · 398K affected	Nov 2010	398K	HHS
Affinity Health Plan Apr 2010 · 344.6K affected	Apr 2010	344.6K	HHS
Foxy Bingo Apr 2008 · 252.2K affected	Apr 2008	252.2K	HIBP
Seacoast Radiology, PA Jan 2011 · 231.4K affected	Jan 2011	231.4K	HHS
RuneScape Boards Dec 2011 · 222.8K affected	Dec 2011	222.8K	HIBP
hackforums.net Jun 2011 · 191.5K affected	Jun 2011	191.5K	HIBP
Millennium Medical Management Resources Apr 2010 · 180.1K affected	Apr 2010	180.1K	HHS
Ankle + Foot Center of Tampa Bay Jan 2011 · 156K affected	Jan 2011	156K	HHS
Oklaholma State Dept. of Health Apr 2011 · 132.9K affected	Apr 2011	132.9K	HHS
Siemens Medical Solutions, USA Jun 2010 · 130.5K affected	Jun 2010	130.5K	HHS
Medical Card System/MCS-HMO/MCS Advantage/MCS Life Nov 2010 · 115K affected	Nov 2010	115K	HHS
Governor's Office of Information Technology Jul 2010 · 105.5K affected	Jul 2010	105.5K	HHS
Hartford Hospital Apr 2011 · 93.5K affected	Apr 2011	93.5K	HHS
Patient Care Services at Saint Francis Apr 2011 · 84K affected	Apr 2011	84K	HHS
Providence Hospital Apr 2010 · 83.9K affected	Apr 2010	83.9K	HHS
Democracy Data & Communications Dec 2009 · 83K affected	Dec 2009	83K	HHS
Area Agency on Aging, Ohio District 5 Jun 2011 · 78K affected	Jun 2011	78K	HHS
The Neurological Institute of Savannah & Center for Spine Aug 2011 · 63.4K affected	Aug 2011	63.4K	HHS
Cincinnati Childrens Hospital Medical Center Jun 2010 · 61K affected	Jun 2010	61K	HHS
Lebanon Internal Medicine Associates Nov 2011 · 55K affected	Nov 2011	55K	HHS
Praxair Healthcare Services Apr 2010 · 54.2K affected	Apr 2010	54.2K	HHS
Silicon Valley Eyecare Optometry and Contact Lenses May 2010 · 40K affected	May 2010	40K	HHS
Sony Jun 2011 · 37.1K affected	Jun 2011	37.1K	View breach
Ortho Montana, PSC Feb 2011 · 37K affected	Feb 2011	37K	HHS
County of Los Angeles Sept 2010 · 33K affected	Sept 2010	33K	HHS
MMM Healthcare May 2011 · 32.4K affected	May 2011	32.4K	HHS
MedAssets Aug 2011 · 32K affected	Aug 2011	32K	HHS
WellPoint Jul 2010 · 31.7K affected	Jul 2010	31.7K	HHS
Care 1st Health Plan Jul 2010 · 29K affected	Jul 2010	29K	HHS
The University of Texas at Arlington Jul 2010 · 27K affected	Jul 2010	27K	HHS
Assurecare Risk Management Jul 2011 · 25.3K affected	Jul 2011	25.3K	HHS
Fort Worth Allergy and Asthma Associates Aug 2010 · 25K affected	Aug 2010	25K	HHS
Pioneer Valley Pathology Aug 2010 · 24.8K affected	Aug 2010	24.8K	HHS
Our Lady of Peace Hospital Dec 2010 · 24.6K affected	Dec 2010	24.6K	HHS
PMC Medicare Choice May 2011 · 24.4K affected	May 2011	24.4K	HHS
Montefiore Medical Center Mar 2010 · 23.8K affected	Mar 2010	23.8K	HHS
Aon Consulting Sept 2010 · 22.6K affected	Sept 2010	22.6K	HHS
St. Joseph Heritage Healthcare Apr 2010 · 22K affected	Apr 2010	22K	HHS
Reid Hospital & Health Care Services May 2011 · 22K affected	May 2011	22K	HHS
Thomas Jefferson University Hospitals Aug 2010 · 21K affected	Aug 2010	21K	HHS
Ernest T. Bice, Jr. DDS, P.A Mar 2010 · 21K affected	Mar 2010	21K	HHS
Rape & Brooks Orthodontics Mar 2011 · 20.7K affected	Mar 2011	20.7K	HHS
Multi-Speciality Collection Services Aug 2011 · 19.7K affected	Aug 2011	19.7K	HHS
Pediatric and Adult Allergy Sept 2010 · 19.2K affected	Sept 2010	19.2K	HHS
University of Oklahoma Sept 2010 · 19.2K affected	Sept 2010	19.2K	HHS
UnitedHealth Group health plan single affiliated covered entity Jun 2011 · 19.1K affected	Jun 2011	19.1K	2 sources ▾ HHS CA AG
Integranetics Feb 2011 · 18.9K affected	Feb 2011	18.9K	HHS
Roberts S. Smith M.D Dec 2011 · 17K affected	Dec 2011	17K	HHS
Lower Umpqua Hospital Jun 2011 · 17K affected	Jun 2011	17K	HHS
UnitedHealth Group health plan single affiliated covered entity Apr 2010 · 16.3K affected	Apr 2010	16.3K	HHS
Travis Software Jan 2011 · 16.2K affected	Jan 2011	16.2K	HHS
HealthCare Partners Jun 2011 · 15.7K affected	Jun 2011	15.7K	HHS
Kaiser Permanente Medical Care Program Jan 2010 · 15.5K affected	Jan 2010	15.5K	HHS
Community Action partnership of Natrona County Apr 2011 · 15K affected	Apr 2011	15K	HHS
Merkle Direct Marketing Jan 2010 · 15K affected	Jan 2010	15K	HHS
Spectrum Health Ssytems Oct 2011 · 14.8K affected	Oct 2011	14.8K	HHS
Fairview Health Services Apr 2011 · 14.6K affected	Apr 2011	14.6K	HHS
Augusta Data Storage Jun 2010 · 14K affected	Jun 2010	14K	HHS
Aultman Hospital Aug 2010 · 13.9K affected	Aug 2010	13.9K	HHS
Cahaba Government Benefit Administrators May 2011 · 13.4K affected	May 2011	13.4K	HHS
Florida Hospital Oct 2011 · 12.8K affected	Oct 2011	12.8K	HHS
Shands at UF Mar 2010 · 12.6K affected	Mar 2010	12.6K	HHS
Logan County Emergeny Ambulance Service Authority Nov 2011 · 12.6K affected	Nov 2011	12.6K	HHS
Grays Harbor Pediatrics Jan 2011 · 12K affected	Jan 2011	12K	HHS
VNA of Southeastern Ct Nov 2010 · 12K affected	Nov 2010	12K	HHS
Blue Cross & Blue Shield of Rhode Island Apr 2010 · 12K affected	Apr 2010	12K	HHS
Centra Jan 2011 · 12K affected	Jan 2011	12K	HHS
McKesson Pharmacy Systems Aug 2010 · 11.4K affected	Aug 2010	11.4K	HHS
Agent Benefits May 2011 · 11.4K affected	May 2011	11.4K	HHS
Molina Healthcare of California Dec 2011 · 11.1K affected	Dec 2011	11.1K	HHS
Joseph A. Gagnon Oct 2010 · 11K affected	Oct 2010	11K	HHS
Jay C. Platt, DDS Dec 2011 · 10.7K affected	Dec 2011	10.7K	HHS
DentaQuest Jun 2010 · 10.5K affected	Jun 2010	10.5K	HHS
Texas Health Partners Aug 2011 · 10.3K affected	Aug 2011	10.3K	HHS
Yanez Dental Jul 2011 · 10.2K affected	Jul 2011	10.2K	HHS
Loma Linda University School of Dentistry Aug 2010 · 10.1K affected	Aug 2010	10.1K	HHS
Brian J Daniels D.D.S.,Paul R Daniels D.D.S Apr 2011 · 10K affected	Apr 2011	10K	HHS
Goodwill Industries of Greater Grand Rapids Jan 2010 · 10K affected	Jan 2010	10K	HHS
Detroit Department of Health and Wellness Promotion Dec 2009 · 10K affected	Dec 2009	10K	HHS
Texas Health Harris Methodist Hospital Azle Feb 2011 · 9.9K affected	Feb 2011	9.9K	HHS
Thrivent Financial for Lutherans Mar 2010 · 9.5K affected	Mar 2010	9.5K	HHS
North Memorial Health Care Sept 2011 · 9.5K affected	Sept 2011	9.5K	HHS
SW Seattle Orthopaedic and Sports Medicine Oct 2010 · 9.5K affected	Oct 2010	9.5K	HHS
H.E.L.P. Financial Dec 2010 · 9.5K affected	Dec 2010	9.5K	HHS
Phoenix Health Plan Apr 2011 · 9.4K affected	Apr 2011	9.4K	HHS
Ashley and Gray DDS Jan 2010 · 9.3K affected	Jan 2010	9.3K	HHS
Wyoming Department of Health Mar 2010 · 9K affected	Mar 2010	9K	HHS
Counseling and Psychotherapy of Throggs Neck Sept 2010 · 9K affected	Sept 2010	9K	HHS
Omnicare Mar 2011 · 8.8K affected	Mar 2011	8.8K	HHS
Mid Continent Credit Services Nov 2011 · 8.3K affected	Nov 2011	8.3K	HHS
Baylor Heart and Vascular Center Jan 2011 · 8.2K affected	Jan 2011	8.2K	HHS
University of Tennessee Medical Center Nov 2010 · 8.2K affected	Nov 2010	8.2K	HHS
CENTER FOR ARTHRITIS & RHEUMATIC DISEASES May 2011 · 8K affected	May 2011	8K	HHS
University of Pittsburgh Student Health Center Apr 2010 · 8K affected	Apr 2010	8K	HHS
Cardiology Consultants/Baptist Health Care Feb 2010 · 8K affected	Feb 2010	8K	HHS
Soundpath Health Dec 2011 · 7.6K affected	Dec 2011	7.6K	HHS
University Health System Jun 2010 · 7.5K affected	Jun 2010	7.5K	HHS
DeKalb Medical Center Jul 2011 · 7.5K affected	Jul 2011	7.5K	HHS
Blue Cross and Blue Shield of Florida Mar 2011 · 7.4K affected	Mar 2011	7.4K	HHS
University of California, San Francisco Jan 2010 · 7.3K affected	Jan 2010	7.3K	HHS
Blue Vantage Dec 2011 · 7.2K affected	Dec 2011	7.2K	HHS
Cook County Health & Hospitals System Aug 2010 · 7.1K affected	Aug 2010	7.1K	HHS
HITS Scanning Solutions Oct 2011 · 7.1K affected	Oct 2011	7.1K	HHS
Charles Mitchell MD Jul 2010 · 6.9K affected	Jul 2010	6.9K	HHS
NewYork-Presbyterian Hospital and Columbia University Medical Center Sept 2010 · 6.8K affected	Sept 2010	6.8K	HHS
VHS Genesis Lab Apr 2010 · 6.8K affected	Apr 2010	6.8K	HHS
Stone Oak Urgent Care & Family Practice Oct 2011 · 6.7K affected	Oct 2011	6.7K	HHS
Cogent Healthcare Nov 2009 · 6.4K affected	Nov 2009	6.4K	HHS
Aetna Jul 2010 · 6.4K affected	Jul 2010	6.4K	HHS
Michele Del Vicario, MD Nov 2009 · 6.1K affected	Nov 2009	6.1K	HHS
VA Caribbean Healthcare System May 2011 · 6K affected	May 2011	6K	HHS
Keith & Fisher, DDS, PA Apr 2011 · 6K affected	Apr 2011	6K	HHS
Speare Memorial Hospital May 2011 · 6K affected	May 2011	6K	HHS
City of Hope National Medical Center Nov 2009 · 5.9K affected	Nov 2009	5.9K	HHS
Mary M. Desch,MD/PathHealer Jun 2010 · 5.9K affected	Jun 2010	5.9K	HHS
Accuprint Aug 2011 · 5.8K affected	Aug 2011	5.8K	HHS
Health Behavior Innovations Feb 2010 · 5.7K affected	Feb 2010	5.7K	HHS
State of South Carolina Budget and Control Board Employee Insurance Program Jan 2011 · 5.6K affected	Jan 2011	5.6K	HHS
Mercer Health & Benefits Aug 2010 · 5.5K affected	Aug 2010	5.5K	HHS
John Muir Physician Network Apr 2010 · 5.5K affected	Apr 2010	5.5K	HHS
L. Douglas Carlson, M.D Nov 2009 · 5.3K affected	Nov 2009	5.3K	HHS
City of Charlotte, NC May 2010 · 5.2K affected	May 2010	5.2K	HHS
Mark D. Lurie, MD Nov 2009 · 5.2K affected	Nov 2009	5.2K	HHS
Medical Center At Bowling Green Apr 2010 · 5.1K affected	Apr 2010	5.1K	HHS
Laboratory Mar 2010 · 5.1K affected	Mar 2010	5.1K	HHS
St. Joseph Medical Center Nov 2011 · 5K affected	Nov 2011	5K	HHS
Lansing Community College Jul 2011 · 5K affected	Jul 2011	5K	HHS
University of California Irvine Medical Center Jun 2011 · 4.9K affected	Jun 2011	4.9K	2 sources ▾ HHS CA AG
J. A. Still Jan 2011 · 4.8K affected	Jan 2011	4.8K	HHS
Contra Costa Health Services Dec 2011 · 4.7K affected	Dec 2011	4.7K	HHS
Debra C. Duffy, DDS Oct 2010 · 4.7K affected	Oct 2010	4.7K	HHS
Paul C. Brown, MD, PS Dec 2011 · 4.7K affected	Dec 2011	4.7K	HHS
RxAmerica, a subsidiary of CVS Caremark Jul 2011 · 4.6K affected	Jul 2011	4.6K	HHS
TriWest Healthcare Alliance Mar 2011 · 4.5K affected	Mar 2011	4.5K	HHS
Hanger Prosthetics & Orthotics Jan 2011 · 4.5K affected	Jan 2011	4.5K	HHS
Eastmoreland Surgical Clinic, William Graham, DO Aug 2010 · 4.3K affected	Aug 2010	4.3K	HHS
Heriberto Rodriguez-Ayala, M.D May 2010 · 4.2K affected	May 2010	4.2K	HHS
VA North Texas Health Care System May 2010 · 4.1K affected	May 2010	4.1K	HHS
Benefits Administration Services Sept 2011 · 4K affected	Sept 2011	4K	HHS
Futurity First Insurance Oct 2011 · 4K affected	Oct 2011	4K	HHS
Washington State Department of Social and Health Services Aug 2011 · 4K affected	Aug 2011	4K	HHS
State of TN, Bureau of TennCare Feb 2010 · 3.9K affected	Feb 2010	3.9K	HHS
SunBridge Healthcare Jul 2010 · 3.8K affected	Jul 2010	3.8K	HHS
Lee Memorial Health System Mar 2010 · 3.8K affected	Mar 2010	3.8K	HHS
Children's Medical Center of Dallas Jan 2010 · 3.8K affected	Jan 2010	3.8K	HHS
Health Services for Children with Special Needs Nov 2009 · 3.8K affected	Nov 2009	3.8K	HHS
Henry Ford Hospital Nov 2010 · 3.7K affected	Nov 2010	3.7K	HHS
Xforia Web Services Feb 2011 · 3.7K affected	Feb 2011	3.7K	HHS
KPMG Aug 2010 · 3.6K affected	Aug 2010	3.6K	HHS
University of Kentucky Jul 2011 · 3.6K affected	Jul 2011	3.6K	HHS
Massachusetts Eye and Ear Infirmary Jan 2010 · 3.6K affected	Jan 2010	3.6K	HHS
Colorado Department of Health Care Policy and Financing Aug 2011 · 3.6K affected	Aug 2011	3.6K	HHS
Department of Personnel and Administration Jun 2011 · 3.6K affected	Jun 2011	3.6K	HHS
Advanced NeuroSpinal Care Feb 2010 · 3.5K affected	Feb 2010	3.5K	HHS
Service Benefits Plan Administrative Services Jan 2010 · 3.4K affected	Jan 2010	3.4K	HHS
Dean Health Systems, Inc.; St. Mary's Hospital; St. Marys Dean Ventures Dec 2010 · 3.3K affected	Dec 2010	3.3K	HHS
Indiana University Oct 2011 · 3.3K affected	Oct 2011	3.3K	HHS
Mankato Clinic Dec 2010 · 3.2K affected	Dec 2010	3.2K	HHS
Thomas Jefferson University Hospitals Oct 2011 · 3.2K affected	Oct 2011	3.2K	HHS
NEA Baptist Clinic Sept 2011 · 3.1K affected	Sept 2011	3.1K	HHS
Cancer Care Northwest P.S Feb 2011 · 3.1K affected	Feb 2011	3.1K	HHS
Living Healthy Community Clinic Sept 2011 · 3K affected	Sept 2011	3K	HHS
SpaMed Solutions Aug 2011 · 3K affected	Aug 2011	3K	HHS
Sleep HealthCenters Dec 2011 · 3K affected	Dec 2011	3K	HHS
Geisinger Wyoming Valley Medical Center Dec 2010 · 2.9K affected	Dec 2010	2.9K	HHS
Rite Aid Dec 2011 · 2.9K affected	Dec 2011	2.9K	HHS
Julie A. Kennedy, D.M.D., P.A Oct 2011 · 2.9K affected	Oct 2011	2.9K	HHS
South Carolina Department of Health and Environmental Control Apr 2010 · 2.9K affected	Apr 2010	2.9K	HHS
Dr Axel Velez Jul 2011 · 2.8K affected	Jul 2011	2.8K	HHS
Henry Ford Hospital Feb 2011 · 2.8K affected	Feb 2011	2.8K	HHS
UCLA Health System Nov 2011 · 2.8K affected	Nov 2011	2.8K	HHS
Curtis R. Bryan, M.D Sept 2010 · 2.7K affected	Sept 2010	2.7K	HHS
Aiken Community Based Outpatient Clinic Apr 2011 · 2.7K affected	Apr 2011	2.7K	HHS
Navos Jun 2011 · 2.7K affected	Jun 2011	2.7K	HHS
Business Express Feb 2011 · 2.7K affected	Feb 2011	2.7K	HHS
Ward A. Morris, DDS Aug 2010 · 2.7K affected	Aug 2010	2.7K	HHS
Matrix Imaging Jul 2010 · 2.6K affected	Jul 2010	2.6K	HHS
University of Rochester Medical Center May 2010 · 2.6K affected	May 2010	2.6K	HHS
Departamento de Salud de Puerto Rico Feb 2011 · 2.6K affected	Feb 2011	2.6K	HHS
InStep Foot Clinic, P.A Oct 2011 · 2.6K affected	Oct 2011	2.6K	HHS
NYU Hospital for Joint Diseases Inventory Management Department Sept 2011 · 2.6K affected	Sept 2011	2.6K	HHS
Mount Sinai Medical Center Mar 2010 · 2.6K affected	Mar 2010	2.6K	HHS
NYU Hospitals Center Jul 2010 · 2.6K affected	Jul 2010	2.6K	HHS
United Micro Data Jan 2010 · 2.6K affected	Jan 2010	2.6K	HHS
John T. Melvin, M.D.& Associates Sept 2011 · 2.5K affected	Sept 2011	2.5K	HHS
Aspen Dental Care Oct 2010 · 2.5K affected	Oct 2010	2.5K	HHS
Hypertension, Nephrology, Dialysis and Transplantation Mar 2010 · 2.5K affected	Mar 2010	2.5K	HHS
Dallas County Hospital District Nov 2011 · 2.5K affected	Nov 2011	2.5K	HHS
Georgetown University Hospital May 2010 · 2.4K affected	May 2010	2.4K	HHS
Bonney Lake Medical Center and Mythili R. Ramachandran, MD Sept 2011 · 2.4K affected	Sept 2011	2.4K	HHS
Memorial Health Systems Jul 2011 · 2.3K affected	Jul 2011	2.3K	HHS
UNCG Speech and Hearing Center Aug 2010 · 2.3K affected	Aug 2010	2.3K	HHS
Nihal Saran, MD Jun 2010 · 2.3K affected	Jun 2010	2.3K	HHS
Mountain Vista Medical Center Feb 2011 · 2.3K affected	Feb 2011	2.3K	HHS
Long Beach Memorial Medical Center Feb 2011 · 2.3K affected	Feb 2011	2.3K	HHS
MAPFRE Life Sept 2011 · 2.2K affected	Sept 2011	2.2K	HHS
Brevard Emergency Services, P.A Oct 2011 · 2.2K affected	Oct 2011	2.2K	HHS
Adult & Pediatric Dermatology Oct 2011 · 2.2K affected	Oct 2011	2.2K	HHS
Friendship Center Dental Office Jan 2011 · 2.2K affected	Jan 2011	2.2K	HHS
Cumberland Gastroenterology, P.S.C Oct 2010 · 2.2K affected	Oct 2010	2.2K	HHS
Aegis Sciences Dec 2011 · 2.2K affected	Dec 2011	2.2K	HHS
Jewish Hospital Aug 2010 · 2.1K affected	Aug 2010	2.1K	HHS
Jonathan Noel MD Sept 2011 · 2.1K affected	Sept 2011	2.1K	HHS
University of Florida Jul 2010 · 2K affected	Jul 2010	2K	HHS
University of Kentucky Jun 2010 · 2K affected	Jun 2010	2K	HHS
Beth Israel Deaconess Medical Center Jul 2011 · 2K affected	Jul 2011	2K	HHS
Nation Wise Machine Buyers Dec 2011 · 2K affected	Dec 2011	2K	HHS
Centro de Ortodoncia Sept 2011 · 2K affected	Sept 2011	2K	HHS
HEALTH RESEARCH INSTITUTE, INC., PFEIFFER TREATMENT CENTER Aug 2011 · 2K affected	Aug 2011	2K	HHS
Gail Gillespie and Associates Jun 2011 · 2K affected	Jun 2011	2K	HHS
TUBA CITY REGIONAL HEALTH CARE Jun 2011 · 2K affected	Jun 2011	2K	HHS
Southern Perioperative Services Dec 2010 · 2K affected	Dec 2010	2K	HHS
Alaskan AIDS Assistance Association Sept 2010 · 2K affected	Sept 2010	2K	HHS
Ault Chiropractic Center Sept 2010 · 2K affected	Sept 2010	2K	HHS
Rick Lawson, Professional Computer Services Dec 2009 · 2K affected	Dec 2009	2K	HHS
Saint Joseph Jun 2011 · 2K affected	Jun 2011	2K	HHS
Oklahoma City VA Medical Center Nov 2010 · 2K affected	Nov 2010	2K	HHS
St. John's Mercy Medical Aug 2010 · 1.9K affected	Aug 2010	1.9K	HHS
MSO of Puerto Rico Feb 2010 · 1.9K affected	Feb 2010	1.9K	HHS
University of New Mexico Health Sciences Center Feb 2010 · 1.9K affected	Feb 2010	1.9K	HHS
TOWERS WATSON Apr 2010 · 1.9K affected	Apr 2010	1.9K	HHS
Austin Center for Therapy and Assessment Jul 2011 · 1.9K affected	Jul 2011	1.9K	HHS
Daniel J. Sigman MD Jan 2010 · 1.9K affected	Jan 2010	1.9K	HHS
St.Vincent Hospital Jan 2011 · 1.8K affected	Jan 2011	1.8K	HHS
Muir Orthopaedic Specialists, A Medical Sept 2011 · 1.8K affected	Sept 2011	1.8K	HHS
VA Gulf Coast Veterans Health Care System Sept 2011 · 1.8K affected	Sept 2011	1.8K	HHS
State of Tennessee Sponsored Group Health Plan Nov 2011 · 1.8K affected	Nov 2011	1.8K	HHS
St. Jude Children's Research Hospital Jun 2010 · 1.7K affected	Jun 2010	1.7K	HHS
Professional Transcription Nov 2010 · 1.7K affected	Nov 2010	1.7K	HHS
Mayo Clinic Sept 2010 · 1.7K affected	Sept 2010	1.7K	HHS
Chattanooga Family Practice Associates Aug 2010 · 1.7K affected	Aug 2010	1.7K	HHS
Trisha Elaine Cordova Mar 2011 · 1.7K affected	Mar 2011	1.7K	HHS
Texas Health and Human Services Commission Sept 2011 · 1.7K affected	Sept 2011	1.7K	HHS
Baylor College of Medicine Jul 2010 · 1.6K affected	Jul 2010	1.6K	HHS
Carolina Center for Development and Rehabilitation Jul 2010 · 1.6K affected	Jul 2010	1.6K	HHS
Jackson Health System Jul 2011 · 1.6K affected	Jul 2011	1.6K	HHS
Prime Home Care Nov 2010 · 1.6K affected	Nov 2010	1.6K	HHS
Amerigroup Community Care of New Mexico Nov 2011 · 1.5K affected	Nov 2011	1.5K	HHS
Centerstone Jul 2010 · 1.5K affected	Jul 2010	1.5K	HHS
Mills-Peninsula Health Services Jul 2011 · 1.5K affected	Jul 2011	1.5K	HHS
Methodist Charlton Medical Center May 2011 · 1.5K affected	May 2011	1.5K	HHS
Holy Cross Hospital Nov 2010 · 1.5K affected	Nov 2010	1.5K	HHS
Eden Medical Center Sept 2010 · 1.5K affected	Sept 2010	1.5K	HHS
Oroville Hospital Sept 2010 · 1.5K affected	Sept 2010	1.5K	HHS
Conway Regional Medical Center Oct 2011 · 1.5K affected	Oct 2011	1.5K	HHS
Clarksburg Mar 2011 · 1.5K affected	Mar 2011	1.5K	HHS
Lexington VAMC Aug 2011 · 1.4K affected	Aug 2011	1.4K	HHS
South Texas Veterans Health Care System Apr 2010 · 1.4K affected	Apr 2010	1.4K	HHS
Robert Wheatley, DDS Nov 2010 · 1.4K affected	Nov 2010	1.4K	HHS
Indiana Regional Medical Center May 2011 · 1.4K affected	May 2011	1.4K	HHS
Windsor Health Plan Jul 2011 · 1.4K affected	Jul 2011	1.4K	HHS
The Kent Center Sept 2010 · 1.4K affected	Sept 2010	1.4K	HHS
Wright State Physicians Aug 2010 · 1.3K affected	Aug 2010	1.3K	HHS
Freda J Bowman MD PA Sept 2011 · 1.3K affected	Sept 2011	1.3K	HHS
Carle Clinic Association Jan 2010 · 1.3K affected	Jan 2010	1.3K	HHS
Utah Department of Workforce Services Oct 2010 · 1.3K affected	Oct 2010	1.3K	HHS
University of Missouri Health Care Jun 2011 · 1.3K affected	Jun 2011	1.3K	HHS
FOOTHILLS NEPHROLOGY Jun 2011 · 1.3K affected	Jun 2011	1.3K	HHS
CareCore National Sept 2010 · 1.3K affected	Sept 2010	1.3K	HHS
Metropolitan Community Health Services Jun 2011 · 1.3K affected	Jun 2011	1.3K	HHS
Health Texas Provider Network Sept 2011 · 1.3K affected	Sept 2011	1.3K	HHS
Franciscan Medical Jan 2011 · 1.3K affected	Jan 2011	1.3K	HHS
California Therapy Solutions Dec 2010 · 1.3K affected	Dec 2010	1.3K	HHS
Treatment Services Northwest Jul 2011 · 1.2K affected	Jul 2011	1.2K	HHS
Matthew H. Conrad, M.D., P.A Sept 2010 · 1.2K affected	Sept 2010	1.2K	HHS
NYU School of Medicine--Aging and Dementia Clinical Research Center Aug 2010 · 1.2K affected	Aug 2010	1.2K	HHS
Medina OB/GYN Associates Jul 2010 · 1.2K affected	Jul 2010	1.2K	HHS
St. Vincent Hospital and Health Care Center Sept 2010 · 1.2K affected	Sept 2010	1.2K	HHS
Fidelity National Technology Imaging Jun 2011 · 1.2K affected	Jun 2011	1.2K	HHS
Kaiser Permanente Northern California Jun 2010 · 1.1K affected	Jun 2010	1.1K	2 sources ▾ HHS CA AG
Gene S. J. Liaw, MD. PS Jun 2011 · 1.1K affected	Jun 2011	1.1K	HHS
Occupational Health Partners Jun 2010 · 1.1K affected	Jun 2010	1.1K	HHS
Sta-home Health & Hospice Nov 2010 · 1.1K affected	Nov 2010	1.1K	HHS
Yale University Apr 2008 · 1.1K affected	Apr 2008	1.1K	2 sources ▾ HHS WA AG
Thresholds Oct 2011 · 1.1K affected	Oct 2011	1.1K	HHS
Center for Neurosciences Feb 2010 · 1.1K affected	Feb 2010	1.1K	HHS
UnitedHealthcare Insurance Jul 2010 · 1.1K affected	Jul 2010	1.1K	HHS
Pitney Bowes Management Services Oct 2011 · 1.1K affected	Oct 2011	1.1K	HHS
Gair Medical Transcription Services Dec 2010 · 1.1K affected	Dec 2010	1.1K	HHS
Mercer Jul 2010 · 1.1K affected	Jul 2010	1.1K	HHS
Genesis Clinical Laboratory Apr 2011 · 1.1K affected	Apr 2011	1.1K	HHS
Imaging Center of Garland May 2011 · 1K affected	May 2011	1K	HHS
Comprehensive Care Management Jun 2010 · 1K affected	Jun 2010	1K	HHS
The Children's Medical Center of Dayton Jun 2010 · 1K affected	Jun 2010	1K	HHS
Riverside Mercy Hospital and Ohio/Mercy Diagnostics Dec 2010 · 1K affected	Dec 2010	1K	HHS
Gary C. Spinks, DMD Dec 2010 · 1K affected	Dec 2010	1K	HHS
Hospital Auxilio Mutuo Dec 2010 · 1K affected	Dec 2010	1K	HHS
University of Arkansas for Medical Sciences Oct 2010 · 1K affected	Oct 2010	1K	HHS
Yale University Aug 2010 · 1K affected	Aug 2010	1K	HHS
Children's Hospital & Research Center at Oakland Jun 2010 · 1K affected	Jun 2010	1K	HHS
Rainbow Hospice and Palliative Care May 2010 · 1K affected	May 2010	1K	HHS
Mid America Kidney Stone Association Oct 2009 · 1K affected	Oct 2009	1K	HHS
Brooke Army Medical Center Oct 2009 · 1K affected	Oct 2009	1K	HHS
St. James Hospital and Health Centers Sept 2010 · 967 affected	Sept 2010	967	HHS
Griffin Hospital Mar 2010 · 957 affected	Mar 2010	957	HHS
Pediatric Sports and Spine Associates Apr 2010 · 955 affected	Apr 2010	955	HHS
Joseph F. Lopez, MD Nov 2009 · 952 affected	Nov 2009	952	HHS
New River Health Association Jun 2011 · 950 affected	Jun 2011	950	HHS
The Children's Hospital of Philadelphia Nov 2009 · 943 affected	Nov 2009	943	HHS
University Health Services, University of Massachusetts, Amherst Mar 2011 · 942 affected	Mar 2011	942	HHS
Aramark Healthcare Support Services Jun 2010 · 937 affected	Jun 2010	937	HHS
Union Security Insurance Apr 2011 · 935 affected	Apr 2011	935	HHS
LORENZO BROWN, MD Sept 2010 · 928 affected	Sept 2010	928	HHS
Morris Heights Health Center Oct 2011 · 927 affected	Oct 2011	927	HHS
Concentra Jan 2010 · 900 affected	Jan 2010	900	HHS
Troy Regional Medical Center Jul 2011 · 880 affected	Jul 2011	880	HHS
University of Kentucky UK HealthCare Nov 2011 · 878 affected	Nov 2011	878	HHS
Concentra Health Dec 2011 · 870 affected	Dec 2011	870	HHS
Diversified Resources Sept 2011 · 863 affected	Sept 2011	863	HHS
David I. Cohen, MD Nov 2009 · 857 affected	Nov 2009	857	HHS
MacNeal Hospital Apr 2011 · 845 affected	Apr 2011	845	HHS
Manor Care Indy Nov 2010 · 845 affected	Nov 2010	845	HHS
Capron Rescue Squad District Aug 2011 · 815 affected	Aug 2011	815	HHS
Advocate Health Care Jan 2010 · 812 affected	Jan 2010	812	HHS
NOL Jun 2011 · 810 affected	Jun 2011	810	HHS
Keystone/AmeriHealth Mercy Health Plans Dec 2010 · 808 affected	Dec 2010	808	HHS
Saint Louis University Feb 2011 · 800 affected	Feb 2011	800	HHS
Zenith Administrators Dec 2010 · 800 affected	Dec 2010	800	HHS
zarzamora family dental care Dec 2010 · 800 affected	Dec 2010	800	HHS
Long Island Consultation Center Jul 2010 · 800 affected	Jul 2010	800	HHS
Omaha Construction Industry , Privacy Manager Breach May 2010 · 800 affected	May 2010	800	HHS
Cleveland Clinic Florida Dec 2011 · 772 affected	Dec 2011	772	HHS
Memorial Hospital of Gardena Nov 2010 · 771 affected	Nov 2010	771	HHS
Computer Program and Systems Mar 2010 · 768 affected	Mar 2010	768	HHS
Coventry Health Care Mar 2011 · 765 affected	Mar 2011	765	HHS
Indiana University School of Optometry Oct 2011 · 757 affected	Oct 2011	757	HHS
The Southwestern Indiana Regional Council on Aging Dec 2010 · 757 affected	Dec 2010	757	HHS
Summit Medical Sept 2011 · 731 affected	Sept 2011	731	HHS
Northridge Hospital Medical Center Nov 2010 · 716 affected	Nov 2010	716	HHS
The Mount Sinai Hospital Jul 2011 · 712 affected	Jul 2011	712	HHS
University of Louisville Research Foundation Jun 2010 · 708 affected	Jun 2010	708	HHS
Mutual of Omaha Insurance Oct 2011 · 705 affected	Oct 2011	705	HHS
Advanced Diagnostic Imaging Jun 2011 · 705 affected	Jun 2011	705	HHS
Thomas J O'Laughlin, MD Oct 2011 · 700 affected	Oct 2011	700	HHS
Andersen Air Force Base, Guam Jul 2011 · 700 affected	Jul 2011	700	HHS
Health Plan of San Mateo Jun 2011 · 694 affected	Jun 2011	694	HHS
Texas Children's Hospital Jul 2010 · 694 affected	Jul 2010	694	HHS
Johns Hopkins University Applied Physics Laboratory Medical and Dental Insurance Plan Oct 2010 · 692 affected	Oct 2010	692	HHS
The Methodist Hospital Jan 2010 · 689 affected	Jan 2010	689	HHS
West Lake Hospital Apr 2011 · 686 affected	Apr 2011	686	HHS
Healthcare Solutions Team Apr 2011 · 675 affected	Apr 2011	675	HHS
NYU School of Medicine Faculty Group Practice Mar 2011 · 670 affected	Mar 2011	670	HHS
Prince William County Community Services Jul 2010 · 669 affected	Jul 2010	669	HHS
County of Los Angeles Mar 2011 · 667 affected	Mar 2011	667	HHS
McKesson Information Solutions Apr 2010 · 660 affected	Apr 2010	660	HHS
Beauty Dental Aug 2010 · 657 affected	Aug 2010	657	HHS
Lake Woods Nursing & Rehabilitation Center Jan 2011 · 656 affected	Jan 2011	656	HHS
Heritage Health Solutions May 2010 · 656 affected	May 2010	656	HHS
CVS CAREMARK May 2011 · 654 affected	May 2011	654	HHS
Texas Health Arlington Memorial Hospital Mar 2011 · 654 affected	Mar 2011	654	HHS
Oconee Physician Practices May 2010 · 653 affected	May 2010	653	HHS
Medcenter One Nov 2011 · 650 affected	Nov 2011	650	HHS
VA Eastern Colorado Health Care System May 2010 · 649 affected	May 2010	649	HHS
Brigham and Women's Hospital and Faulkner Hospital Aug 2011 · 638 affected	Aug 2011	638	HHS
Park Avenue Obstetrics & Gynecology Mar 2011 · 635 affected	Mar 2011	635	HHS
Robert B. Miller, MD May 2011 · 620 affected	May 2011	620	HHS
Albert Einstein Healthcare Network Nov 2010 · 613 affected	Nov 2010	613	HHS
University of Nebraska Medical Center Dec 2011 · 611 affected	Dec 2011	611	HHS
University of California, San Francisco Dec 2009 · 610 affected	Dec 2009	610	HHS
JEFFREY J. SMITH, MD Mar 2011 · 600 affected	Mar 2011	600	HHS
alma aguado md pa Jun 2010 · 600 affected	Jun 2010	600	HHS
Tomah Memorial Hospital Apr 2010 · 600 affected	Apr 2010	600	HHS
Lahey Clinic Oct 2011 · 599 affected	Oct 2011	599	HHS
Kern Medical Center Dec 2009 · 596 affected	Dec 2009	596	HHS
Hils Transcription Dec 2010 · 585 affected	Dec 2010	585	HHS
LoneStar Audiology Oct 2010 · 585 affected	Oct 2010	585	HHS
FIRST PRIORITY LIFE INSURANCE Sept 2011 · 579 affected	Sept 2011	579	HHS
WESTMED Medical Oct 2010 · 578 affected	Oct 2010	578	HHS
Miami VA Healthcare System May 2010 · 568 affected	May 2010	568	HHS
KCI USA Oct 2011 · 567 affected	Oct 2011	567	HHS
Sitka Wellness Center Nov 2011 · 566 affected	Nov 2011	566	HHS
SW General Apr 2011 · 566 affected	Apr 2011	566	HHS
Drs Edalji and Komer May 2011 · 563 affected	May 2011	563	HHS
Penn Treaty Network America Insurance Aug 2010 · 560 affected	Aug 2010	560	HHS
North Carolina Baptist Hospital Mar 2010 · 554 affected	Mar 2010	554	HHS
Premier Imaging Oct 2011 · 551 affected	Oct 2011	551	HHS
St. Mary's Hospital for Children May 2011 · 550 affected	May 2011	550	HHS
Jefferson Center for Mental Health Feb 2011 · 546 affected	Feb 2011	546	HHS
Kings County Hospital Center Nov 2010 · 542 affected	Nov 2010	542	HHS
DC Chartered Health Plan Jul 2010 · 540 affected	Jul 2010	540	HHS
Visiting Nurse Service Association of Schenectady County Nov 2010 · 535 affected	Nov 2010	535	HHS
MacNeal Physician Apr 2011 · 532 affected	Apr 2011	532	HHS
Lucille Packard Children's Hospital Feb 2010 · 532 affected	Feb 2010	532	HHS
Blue Cross Blue Shield of RI Feb 2010 · 528 affected	Feb 2010	528	HHS
Henry Ford Health System Oct 2011 · 520 affected	Oct 2011	520	HHS
VA Illiana Health Care System Sept 2011 · 518 affected	Sept 2011	518	HHS
AllOne Health Management Solutions Sept 2011 · 507 affected	Sept 2011	507	HHS
LabCorp Patient Service Center Sept 2010 · 507 affected	Sept 2010	507	HHS
Ashley Industrial Molding Aug 2011 · 506 affected	Aug 2011	506	HHS
Health Care Service Jul 2011 · 501 affected	Jul 2011	501	HHS
OhioHealth Jan 2011 · 501 affected	Jan 2011	501	HHS
Alaska Department of Health and Social Services Oct 2009 · 501 affected	Oct 2009	501	HHS
Lankenau Medical Center Oct 2011 · 500 affected	Oct 2011	500	HHS
Knox Community Hospital Apr 2011 · 500 affected	Apr 2011	500	HHS
CHC MEMPHIS CMHC Jan 2011 · 500 affected	Jan 2011	500	HHS
Rockbridge Area Community Services Apr 2010 · 500 affected	Apr 2010	500	HHS
Central Brooklyn Medical Feb 2010 · 500 affected	Feb 2010	500	HHS
Bailey's Dec 2011 · 8.8K WA residents	Dec 2011	8.8K WA residents	2 sources ▾ CA AG WA AG
Homeowners Financial Jul 2007	Jul 2007	–	CA AG
CMI Marketing Jan 2011	Jan 2011	–	CA AG
Zocdoc Jun 2011	Jun 2011	–	CA AG
American Express Travel Related Services May 2008	May 2008	–	CA AG
Lasko Dec 2011	Dec 2011	–	CA AG
Rady Children's Hospital-San Diego Nov 2009	Nov 2009	–	CA AG
Kaiser Permanente Northern CA Department of Research Oct 2011	Oct 2011	–	CA AG
The Variable Annuity Life Insurance Oct 2007	Oct 2007	–	CA AG
American Express Travel Related Services Mar 2011	Mar 2011	–	CA AG
San Jose Medical Supply Aug 2011	Aug 2011	–	CA AG
OneWest Bank, FSB Jan 2011	Jan 2011	–	CA AG
American Express Travel Related Services Apr 2011	Apr 2011	–	CA AG
Centric Aug 2010	Aug 2010	–	CA AG
Oak River Insurance Oct 2011	Oct 2011	–	CA AG
American Express Travel Related Services Nov 2010	Nov 2010	–	CA AG
ThePartsBin.com Apr 2011	Apr 2011	–	CA AG
Investacorp Nov 2011	Nov 2011	–	CA AG
Pono Products Aug 2011	Aug 2011	–	CA AG
San Francisco Head Start, San Francisco State University Aug 2011	Aug 2011	–	CA AG
Kaiser Foundation Health Plan Sept 2011	Sept 2011	–	CA AG
Trident University International Nov 2011	Nov 2011	–	CA AG
RJL Insurance Services Oct 2011	Oct 2011	–	CA AG
Impairment Resouces Dec 2011	Dec 2011	–	CA AG
TM Acquisition Dec 2011	Dec 2011	–	CA AG
Pacifica-Coastside Credit Union Dec 2011	Dec 2011	–	CA AG
Valve Nov 2011	Nov 2011	–	View breach

Check if you're exposed in a breach with Serus

Find your leaks. Get alerted to new ones.

Run a free scan

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.