Form: Cost-of-Breach DisclosureSource: IBM Cost of a Data BreachFiled: 28 Apr 2026
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Schedule 13 / HHS OCR Breach Register8,012 filings, 2009 to 2026

Public record

Every HIPAA breach of 500 or more, since 2009.

The HHS Office for Civil Rights must post every breach of unsecured protected health information that affects 500 or more individuals. This register rebuilds that list as browsable pages: 50 states plus DC and Puerto Rico, 18 years, 2,760 filing pages for breaches of 10,000 or more individuals, and a modelled cost on each, with the method shown.

Filings on the portal

8,012

762 under investigation, 7,250 archived

Individuals affected

1.09B

1,094,561,095, the sum of every filing as reported

Largest single filing

192,700,000

Change Healthcare, Inc., 2024

Hacking / IT incidents

60%

4,830 filings carry the type

Direct answer / What the HHS breach portal shows

As of 8 October 2026 the portal lists 8,012 breaches affecting 500 or more individuals, submitted between 2009 and 2026. The largest is Change Healthcare, Inc. (192,700,000 individuals, 2024); California has filed the most (786); 2,398 filings (30%) involve a business associate; and 804 filings were submitted in 2025 alone. Counts and dates are as reported by the covered entity; nothing here is estimated except the clearly labelled modelled cost.

Lookup / Search the register

Find an organisation on the HHS portal

Type any part of a covered entity or business associate name. The search runs in your browser over all 8,012 filings on the register as of 8 October 2026, 2009 to 2026, and returns what HHS published: state, submission date, individuals affected as reported, breach type and entity type.

52 states and territories

2009 to 2026

Source: HHS OCR breach portal export retrieved 8 October 2026. 8,012 filings, 2,760 of them at or above 10,000 individuals with a page of their own. Counts are as reported by the entity; no cost figure is shown here.

Section 13.1 / Latest filings

The twenty most recent submissions

Newest first, by breach submission date. Filings marked Open sit on the portal's "Cases Currently Under Investigation" tab; filings of 10,000 or more individuals link to their own page.

Covered entityStateTypeIndividualsSubmitted
Imagine the PossibilitiesOpenIAHealth Plan1,69321 Sep 2026
Applied Healthcare Nursing Division, Inc. d/b/a Doctor's Choice Home CareOpenTXHealthcare Provider14,33319 Sep 2026
OU Medicine, Inc.OpenOKHealthcare Provider85418 Sep 2026
Three Oaks Hospice, IncorporatedOpenTXBusiness Associate36,62217 Sep 2026
Project Belle, LLCOpenNHHealthcare Provider84017 Sep 2026
AngMar Management ServicesOpenTXBusiness Associate126,19616 Sep 2026
WindRose Health NetworkOpenINHealthcare Provider33,15816 Sep 2026
At Home Medical, Inc.OpenNJHealthcare Provider1,09116 Sep 2026
Leggett & Platt, Incorporated Employee Benefit PlanOpenMOHealth Plan61,70215 Sep 2026
Bacon County Health Services, Inc.OpenGAHealthcare Provider50115 Sep 2026
Camden-on-Gauley Medical CenterOpenWVHealthcare Provider50115 Sep 2026
Clover HealthOpenMNHealth Plan138,67714 Sep 2026
Lakes Region Visiting Nursing AssociationOpenNHHealthcare Provider1,27414 Sep 2026
Comprehensive Orthopedics & Musculoskeletal Care, LLCOpenCTHealthcare Provider21,89710 Sep 2026
Vernon & Waldrep OB-Gyn AssociatesOpenTXHealthcare Provider17,43510 Sep 2026
Persona DentalOpenMNHealthcare Provider3,38610 Sep 2026
Alma Family ServicesOpenCAHealthcare Provider2,75310 Sep 2026
Interim HealthCare Inc.OpenFLHealthcare Provider1,28310 Sep 2026
Azle Cube Smiles PLLCOpenTXHealthcare Provider3,2809 Sep 2026
Novocure Inc.OpenPAHealthcare Provider1,4649 Sep 2026

Section 13.2 / Largest filings

Fifteen largest breaches on the portal

Ranked by individuals affected as reported at submission. 152 filings involve one million or more people; 813 involve 100,000 or more.

#Covered entityStateTypeIndividualsSubmitted
1Change Healthcare, Inc.MNBusiness Associate192,700,00019 Jul 2024
2Anthem Inc.INHealth Plan78,800,00013 Feb 2015
3Conduent Business Services LLCOpenNJBusiness Associate62,224,6588 Oct 2025
4DentaQuest, LLCOpenMAHealth Plan15,000,00016 Jul 2026
5Welltok, Inc.COBusiness Associate14,782,8876 Nov 2023
6Aflac Incorporated ("Aflac")OpenGAHealth Plan13,924,9068 Aug 2025
7Kaiser Foundation Health Plan, Inc.CAHealth Plan13,400,00012 Apr 2024
8Optum360, LLCMNBusiness Associate11,500,0001 Jul 2019
9HCA HealthcareTNBusiness Associate11,270,00031 Jul 2023
10Premera Blue CrossWAHealth Plan11,000,00017 Mar 2015
11Laboratory Corporation of America Holdings dba LabCorpNCHealthcare Provider10,251,78413 Jul 2019
12Aesto, LLCOpenALBusiness Associate9,540,68331 Jul 2026
13Excellus Health Plan, Inc.NYHealth Plan9,358,8919 Sep 2015
14Perry Johnson & Associates, Inc. dba PJ&ANVBusiness Associate9,302,5883 Nov 2023
15Maximus, Inc.VABusiness Associate9,179,3904 Aug 2023

Two of these have full editorial case files with disclosed costs: Anthem 2015 and Change Healthcare 2024. The rest of the mega-breach register is cross-sector and not HIPAA-specific.

Section 13.3 / By state

52 state and territory pages

Each state page carries every filing from that state as a table, counts by year and breach type, the state's own notification statute, and links to the filing pages. State is the covered entity's registered state, not where the affected people live.

AlabamaAL

100 filings, 14,148,981 affected

AlaskaAK

32 filings, 925,719 affected

ArizonaAZ

167 filings, 16,201,503 affected

ArkansasAR

94 filings, 2,597,059 affected

CaliforniaCA

786 filings, 79,958,213 affected

ColoradoCO

140 filings, 29,369,166 affected

ConnecticutCT

146 filings, 11,380,761 affected

DelawareDE

32 filings, 5,341,160 affected

District of ColumbiaDC

34 filings, 741,808 affected

FloridaFL

471 filings, 54,072,220 affected

GeorgiaGA

229 filings, 38,859,277 affected

HawaiiHI

24 filings, 614,294 affected

IdahoID

32 filings, 1,543,757 affected

IllinoisIL

364 filings, 22,594,404 affected

IndianaIN

202 filings, 93,114,333 affected

IowaIA

100 filings, 6,614,525 affected

KansasKS

83 filings, 2,096,082 affected

KentuckyKY

124 filings, 11,757,126 affected

LouisianaLA

67 filings, 4,438,165 affected

MaineME

39 filings, 3,296,092 affected

MarylandMD

172 filings, 19,570,764 affected

MassachusettsMA

245 filings, 28,784,150 affected

MichiganMI

240 filings, 16,130,988 affected

MinnesotaMN

194 filings, 212,076,397 affected

MississippiMS

55 filings, 2,459,630 affected

MissouriMO

166 filings, 17,570,605 affected

MontanaMT

36 filings, 1,865,004 affected

NebraskaNE

60 filings, 5,403,241 affected

NevadaNV

55 filings, 12,507,230 affected

New HampshireNH

41 filings, 1,163,058 affected

New JerseyNJ

177 filings, 79,985,058 affected

New MexicoNM

57 filings, 4,378,605 affected

New YorkNY

516 filings, 42,564,803 affected

North CarolinaNC

208 filings, 28,691,719 affected

North DakotaND

21 filings, 823,546 affected

OhioOH

278 filings, 18,927,883 affected

OklahomaOK

83 filings, 6,107,720 affected

OregonOR

120 filings, 5,405,904 affected

PennsylvaniaPA

345 filings, 21,205,627 affected

Puerto RicoPR

32 filings, 1,712,827 affected

Rhode IslandRI

41 filings, 544,697 affected

South CarolinaSC

87 filings, 2,631,488 affected

South DakotaSD

15 filings, 178,652 affected

TennesseeTN

200 filings, 39,597,433 affected

TexasTX

656 filings, 49,863,944 affected

UtahUT

68 filings, 7,085,448 affected

VermontVT

16 filings, 201,678 affected

VirginiaVA

158 filings, 25,324,969 affected

WashingtonWA

187 filings, 23,291,258 affected

West VirginiaWV

49 filings, 1,850,823 affected

WisconsinWI

126 filings, 12,717,130 affected

WyomingWY

19 filings, 287,419 affected

23 filings carry no state in the HHS export (Puerto Rico, Guam and US Virgin Islands entities); they appear on the year pages under "State not given".

Section 13.4 / By year

2009 to 2026, year by year

Filings per submission year with the sum of individuals affected and the share recorded as Hacking/IT Incident. 2026 is a partial year to 21 September 2026.

YearFilingsIndividuals affected
200918134,773
20101995,932,276
201120013,162,158
20122182,854,525
20132777,018,839
201431419,073,551
2015270112,466,720
201632816,711,004
20173585,314,987
201836915,256,235
201951144,969,724
202066335,321,223
202171561,206,238
202271864,570,326
2023745183,256,225
2024741290,054,222
2025804140,575,793
202656476,682,276

Section 13.5 / Composition

Who files, how the data was breached, where it sat

Multi-valued fields (a filing can list two breach types or several locations) count once per value, so shares can sum above 100%.

Covered entity type

Healthcare Provider5,790 (72%)
Business Associate1,231 (15%)
Health Plan969 (12%)
Healthcare Clearing House17 (0%)
not given5 (0%)

Type of breach

Hacking/IT Incident4,830 (60%)
Unauthorized Access/Disclosure1,740 (22%)
Theft1,060 (13%)
Loss247 (3%)
Improper Disposal127 (2%)
Other95 (1%)
Unknown16 (0%)
not given1 (0%)

Location of breached information

Network Server3,692 (46%)
Email1,853 (23%)
Paper/Films1,012 (13%)
Laptop514 (6%)
Electronic Medical Record477 (6%)
Other461 (6%)
Desktop Computer380 (5%)
Other Portable Electronic Device331 (4%)

Section 13.6 / The modelled cost

A method on every filing page, never a disclosed figure

HHS publishes the number of individuals affected and nothing about cost. Each filing page therefore multiplies that number by IBM's customer-PII cost per record, $160 in the Cost of a Data Breach Report 2025 (the figure this site's calculator uses) and $192 in the 2026 edition, and labels the result a modelled estimate with the method shown. A 10,000-person filing models at $1.60M and $1.92M; IBM's 2026 average cost of a healthcare breach is $6.64M.

The model is only shown as an estimate inside the range where IBM's per-record figure behaves: above roughly 100,000 records the page stamps it an upper bound, because fixed costs are spread across far more records at that scale and IBM itself cautions against multiplying per-record figures across breaches involving millions of records. Change Healthcare's disclosed $2.45B against 192.7 million individuals is the standing example of why.

Section 13.7 / How a breach reaches the portal

500 individuals, 60 days, one public list

Threshold

A breach of unsecured protected health information affecting 500 or more individuals must be reported to HHS; smaller breaches are logged and reported annually and never appear here.

Clock

Notice to affected individuals and to HHS without unreasonable delay and no later than 60 days after discovery. The submission date on each filing is when that notice reached OCR, not when the breach happened.

Two tabs

New filings sit under Cases Currently Under Investigation; when OCR closes the case the row moves to the archive and usually gains a short closing summary of what was exposed and what the entity did. 7,068 archived filings carry one.

Index / Companion schedules

Provenance

Source: U.S. Department of Health and Human Services, Office for Civil Rights, Breach Portal (breaches affecting 500 or more individuals), retrieved 2026-10-08. Public domain. Individuals affected and dates as reported by the covered entity.

Portal: ocrportal.hhs.gov breach report. Statutory basis: HITECH Act section 13402(e)(4): the Secretary must post a list of breaches of unsecured protected health information affecting 500 or more individuals. Breaches affecting fewer than 500 individuals are reported to OCR annually and are not posted, so they are not on this register. Status wording follows the portal's two tabs ("Cases Currently Under Investigation" and "Archive") as of 8 October 2026; a filing moves to the archive when OCR closes the case. Modelled costs on this site are a method applied to the reported count, using IBM Cost of a Data Breach per-record figures, and are never a cost disclosed by the entity. Export files: hhs-breach-under-investigation__2026-10-08.csv (762 rows); hhs-breach-archive__2026-10-08.csv (7,250 rows).

Corrections: if you represent a listed entity and the portal row has been amended, email [email protected] with the portal entry and we will re-pull the export.

Schedule F / Reference Q&A

Frequently Asked Questions