Breaches & incidents

The victims' side of the threat pictureWho is being attacked

Data breaches and cyber incidents made public — reported to regulators, disclosed by the companies themselves, or catalogued after a leak. Who was hit, when, how, and how many people or accounts were affected.

Incidents disclosed
613
last 12 months, every source
People in US health breaches
70.4M
474 breaches reported to HHS
Material incidents, US listed firms
22
SEC 8-K Item 1.05, 12 months
Accounts in new breach records
521.9M
125 breaches added to HIBP

Coverage. Mostly the United States: the cleanest public records of named victims come from US regulators. Ransomware victims worldwide, India included, are on the ransomware victims page. Every count is a lower bound — only disclosed incidents appear.

1Key findings

  • Most common attackHacking / intrusion78% of named-victim incidents in the last 24 months
  • Most targeted sectorHealthcare747 incidents in the last 24 months
  • Most people affectedConduent Business Services LLC62.2M people · 8 Oct 2025
  • Most accounts exposed1win96.2M accounts · 2 Nov 2024
  • Named most oftenFieldtex Products, Inc.in 5 disclosures, 20 Nov 2025 – 12 Dec 2025
  • Latest disclosureDouble CounterData breach (cause not stated) · 4 Oct 2026 · HIBP

3Sectors

Who the incidents hit, where the source names a sector, and how each sector was attacked.

Most affected sectorsLast 24 months. Select one to list its incidents.
  1. Healthcare747
  2. Information28
  3. Manufacturing21
  4. Professional Services19
  5. Retail18
  6. Finance, Insurance & Real Estate6
  7. Services5
  8. Transportation4
  9. Technology4
  10. Accommodation & Food3
  11. Administrative3
  12. Finance & Insurance2
Sector against type of attackIncidents per sector (rows) and attack type (columns). Darker means more.
  • In healthcare, 91% of incidents were hacking / intrusion.
Hacking / intrusionData breach (cause not stated)Unauthorised access or disclosureRansomwareTheft or lossError / misconfiguration
Healthcare68060241
Information253
Manufacturing201
Professional Services181
Retail171
Finance, Insurance & Real Estate6
Services5
Transportation4

4Largest incidents

The last 24 months. People and accounts are counted apart: an account list can hold one person many times. Credential compilations, which name no victim, are left out.

By people affected
  1. 1
    Conduent Business Services LLC62.2M people
    8 Oct 2025 · Hacking / intrusion · Healthcare · HHS
  2. 2
    DentaQuest, LLC15.0M people
    16 Jul 2026 · Hacking / intrusion · Healthcare · HHS
  3. 3
    Aflac Incorporated (“Aflac”)13.9M people
    8 Aug 2025 · Hacking / intrusion · Healthcare · HHS
  4. 4
    Aesto, LLC9.5M people
    31 Jul 2026 · Hacking / intrusion · Healthcare · HHS
  5. 5
    Episource, LLC6.7M people
    6 Jun 2025 · Hacking / intrusion · Healthcare · HHS
  6. 6
    AdaptHealth, LLC4.1M people
    14 Aug 2026 · Hacking / intrusion · Healthcare · HHS
  7. 7
    Unlimited Technology Systems, LLC3.8M people
    21 Jul 2026 · Hacking / intrusion · Healthcare · HHS
  8. 8
    CareCloud, Inc.3.8M people
    24 Jul 2026 · Hacking / intrusion · Healthcare · HHS
By accounts exposed
  1. 1
    1win96.2M accounts
    2 Nov 2024 · Data breach (cause not stated) · HIBP
  2. 2
    Under Armour72.7M accounts
    17 Nov 2025 · Data breach (cause not stated) · HIBP
  3. 3
    Suno55.3M accounts
    25 Nov 2025 · Data breach (cause not stated) · HIBP
  4. 4
    Canadian Tire38.3M accounts
    2 Oct 2025 · Data breach (cause not stated) · HIBP
  5. 5
    Addi34.5M accounts
    25 Mar 2026 · Data breach (cause not stated) · HIBP
  6. 6
    SoundCloud29.8M accounts
    15 Dec 2025 · Data breach (cause not stated) · HIBP
  7. 7
    Speedio27.5M accounts
    24 Dec 2024 · Data breach (cause not stated) · HIBP
  8. 8
    Paidwork23.3M accounts
    29 Mar 2026 · Data breach (cause not stated) · HIBP

5Hit more than once

Organisations named in more than one disclosure in the last 5 years (29 in all). That can be separate attacks, or one incident reported to more than one place — a regulator and investors, or on behalf of several clients.

OrganisationDisclosuresFirst – latestTypes of attackSources
Fieldtex Products, Inc. · Healthcare520 Nov 2025 – 12 Dec 2025Hacking / intrusionHHS
AltaMed Health Services Corporation · Healthcare31 Jun 2023 – 26 Feb 2026Hacking / intrusionRansomwareUnauthorised access or disclosureHHS, VCDB
United Healthcare Student Resources · Finance & Insurance31 Jun 2023 – 1 Jun 2023RansomwareVCDB
DentaQuest, LLC · Healthcare223 May 2026 – 16 Jul 2026Data breach (cause not stated)Hacking / intrusionHHS, HIBP
CarMax · Retail22 May 2025 – 24 Jan 2026Data breach (cause not stated)Hacking / intrusionHIBP, VCDB
WindRose Health Network · Healthcare227 Jan 2026 – 16 Sept 2026Hacking / intrusionHHS
AdaptHealth, LLC · Healthcare227 Jun 2026 – 14 Aug 2026Hacking / intrusionHHS, SEC 8-K
CareCloud, Inc. · Healthcare224 Mar 2026 – 24 Jul 2026Hacking / intrusionHHS, SEC 8-K
Clinical Registry Solutions · Healthcare29 Apr 2026 – 12 Jun 2026Hacking / intrusionHHS, VCDB
Open Arms Care Corporation · Healthcare21 Jun 2025 – 11 Jun 2026Hacking / intrusionHHS, VCDB
Gastro Health · Healthcare222 May 2026 – 22 May 2026Hacking / intrusionHHS
Radiology Associates of Richmond · Healthcare21 Jul 2025 – 21 May 2026Hacking / intrusionHHS

6All incidents

Clear

3,211 incidents match, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2026-08-20Life Bridges, Inc.Hacking / intrusionHealthcareTN, US5,194 peopleHHS
2026-08-19United Language Group, LLCHacking / intrusionHealthcareKS, US4,649 peopleHHS
2026-08-17Hillcrest Medical Research LLC.Hacking / intrusionHealthcareFL, US5,785 peopleHHS
2026-08-16PSI Premier Specialties, Inc. d/b/a Medical Express PSIHacking / intrusionHealthcareTX, US4,100 peopleHHS
2026-08-14AdaptHealth, LLCHacking / intrusionHealthcarePA, US4.1M peopleHHS
2026-08-14Baylor GeneticsHacking / intrusionHealthcareTX, US2.8M peopleHHS
2026-08-14Gardiner Family Chiropractic, PCHacking / intrusionHealthcareME, US5,000 peopleHHS
2026-08-14Integrative Emergency Services, LLCHacking / intrusionHealthcareTX, US2,009 peopleHHS
2026-08-14Mountain Rheumatology Professional, LLCHacking / intrusionHealthcareCO, US5,378 peopleHHS
2026-08-14Well Child, Inc.Hacking / intrusionHealthcareTN, US500 peopleHHS
2026-08-13BestCare Treatment Services, Inc.Unauthorised access or disclosureHealthcareIL, US4,216 peopleHHS
2026-08-12Oakdale Ear Nose & Throat PA d/b/a Minnesota ENTHacking / intrusionHealthcareMN, US100k peopleHHS
2026-08-11Community Health Care, Inc.Hacking / intrusionHealthcareOH, US808 peopleHHS
2026-08-11Longview ER Operations, LLCHacking / intrusionHealthcareTX, US501 peopleHHS
2026-08-10Boston Healthcare for the Homeless ProgramHacking / intrusionHealthcareMA, US201k peopleHHS
2026-08-10Westchester Institute for Human Development, Inc.Hacking / intrusionHealthcareNY, US938 peopleHHS
2026-08-07American Addiction CentersHacking / intrusionHealthcareTN, US328k peopleHHS
2026-08-07Central Arkansas Pediatrics, P.A.Hacking / intrusionHealthcareAR, US1,500 peopleHHS
2026-08-07Deseye, PLLC d/b/a Princeton Family Eye CareHacking / intrusionHealthcareTX, US1,050 peopleHHS
2026-08-07Horizon Eye Care Laser & Eye Surgery CenterHacking / intrusionHealthcareNJ, US501 peopleHHS
2026-08-07Indico Data Solutions, Inc.Hacking / intrusionHealthcareMA, US4,840 peopleHHS
2026-08-05NFI North, Inc.Hacking / intrusionHealthcareNH, US50k peopleHHS
2026-08-03PAMCAH-UA Local 675 Health and Welfare FundHacking / intrusionHealthcareHI, US8,319 peopleHHS
2026-07-31A-O-M-S, P.L.L.C. d/b/a Arkansas Oral & Maxillofacial SurgeonsHacking / intrusionHealthcareAR, US65k peopleHHS
2026-07-31Aesto, LLCHacking / intrusionHealthcareAL, US9.5M peopleHHS
2026-07-31Asheville Beaverdam NC Opco LLC d/b/a Bear Mountain Health and RehabilitationHacking / intrusionHealthcareNC, US1,397 peopleHHS
2026-07-31Asheville US Seventy NC Opco LLC d/b/a Swannanoa Valley Health and RehabilitationHacking / intrusionHealthcareNC, US1,045 peopleHHS
2026-07-31Asheville Victoria NC Opco LLC d/b/a Elevate Health & RehabilitationHacking / intrusionHealthcareNC, US1,551 peopleHHS
2026-07-31Interim HealthCare of Oklahoma City, Inc.Hacking / intrusionHealthcareOK, US500 peopleHHS
2026-07-31Manning Regional Healthcare CenterHacking / intrusionHealthcareIA, US746 peopleHHS
2026-07-31Monongalia County General Hospital CompanyHacking / intrusionHealthcareWV, US2,173 peopleHHS
2026-07-30MPS Enterprises, Inc.Hacking / intrusionHealthcareTX, US675 peopleHHS
2026-07-30Pennsylvanie Dermatology PartnersHacking / intrusionHealthcareMD, US500 peopleHHS
2026-07-29AMGEN INCHacking / intrusionHealthcareCA, US—SEC 8-K
2026-07-29Associated EndocrinologistsHacking / intrusionHealthcareMI, US4,979 peopleHHS
2026-07-29Central Texas Oral HealthHacking / intrusionHealthcareTX, US1,389 peopleHHS
2026-07-29Nephrology Associates, M.D., P.A.Hacking / intrusionHealthcareKS, US24k peopleHHS
2026-07-29Quantum HealthHacking / intrusionHealthcareOH, US2,104 peopleHHS
2026-07-29zHealth, Inc.Hacking / intrusionHealthcareCA, US119k peopleHHS
2026-07-27Cornerstone Behavioral HealthcareHacking / intrusionHealthcareME, US15k peopleHHS
2026-07-27Jeffrey David Reuben, M.D.Hacking / intrusionHealthcareTX, US17k peopleHHS
2026-07-27Regional Center of Orange CountyError / misconfigurationHealthcareCA, US17k peopleHHS
2026-07-24Agave Dental-FloresvilleHacking / intrusionHealthcareTX, US12k peopleHHS
2026-07-24Allwyn DentalHacking / intrusionHealthcareTX, US4,013 peopleHHS
2026-07-24Azle Smiles DentalHacking / intrusionHealthcareTX, US9,444 peopleHHS
2026-07-24Bridgeway Benefit Technologies LLCHacking / intrusionHealthcareFL, US9,268 peopleHHS
2026-07-24CareCloud, Inc.Hacking / intrusionHealthcareNJ, US3.8M peopleHHS
2026-07-24Kashi DentalHacking / intrusionHealthcareTX, US6,027 peopleHHS
2026-07-24Lifespark Management Services, LLCHacking / intrusionHealthcareMN, US6,611 peopleHHS
2026-07-24Mysa DentalHacking / intrusionHealthcareTX, US3,394 peopleHHS

Sources: US HHS breach portal, SEC EDGAR, Have I Been Pwned (CC BY 4.0) and the VERIS Community Database (CC BY-SA 4.0). Updated 2026-10-13 16:14 UTC.