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. Technology4
  9. Transportation4
  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
Technology4

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

11,839 incidents, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2026-05-22Southern Illinois Ob-Gyn Associates, S.C.Hacking / intrusionHealthcareIL, US39k peopleHHS
2026-05-21Coastal Carolina Centers of Urology and Surgery, LLCHacking / intrusionHealthcareSC, US2,886 peopleHHS
2026-05-21Ira L. Savetsky, MD PLLCHacking / intrusionHealthcareNY, US564 peopleHHS
2026-05-21Radiology Associates of RichmondHacking / intrusionHealthcareVA, US266k peopleHHS
2026-05-21RegenceHacking / intrusionHealthcareOR, US2,856 peopleHHS
2026-05-20Oncology Institute, Inc.Hacking / intrusionHealthcareCA, US—SEC 8-K
2026-05-20Southwest Behavioral Health Services.orgHacking / intrusionHealthcareAZ, US2,316 peopleHHS
2026-05-19Singing River Health SystemHacking / intrusionHealthcareMS, US54k peopleHHS
2026-05-18Community ConnectionsHacking / intrusionHealthcareDC, US19k peopleHHS
2026-05-18Eyemart Express, LLCHacking / intrusionHealthcareTX, US25k peopleHHS
2026-05-18Greenbaum Rowe Smith & Davis LLPHacking / intrusionHealthcareNJ, US13k peopleHHS
2026-05-15Centers for Dialysis CareHacking / intrusionHealthcareOH, US8,000 peopleHHS
2026-05-15Insurance ACE/Humana Inc.Unauthorised access or disclosureHealthcareKY, US1,761 peopleHHS
2026-05-15Liberty Solutions, Inc.Unauthorised access or disclosureHealthcareNY, US7,329 peopleHHS
2026-05-14Bridle Trails Family DentistryHacking / intrusionHealthcareWA, US21k peopleHHS
2026-05-14Golf Canada golfcanada.caData breach (cause not stated)——569k accountsHIBP
2026-05-14NJ Pain Care Specialists, LLCHacking / intrusionHealthcareNJ, US501 peopleHHS
2026-05-13Pivot HealthHacking / intrusionHealthcareFL, US5,864 peopleHHS
2026-05-12Ocelot Ventures, LLC dba ExcelasHacking / intrusionHealthcareOH, US2,275 peopleHHS
2026-05-11Saurabh N. Patel, M.D – Florida Retina CenterHacking / intrusionHealthcareLA, US14k peopleHHS
2026-05-08Bronsky OrthodonticsHacking / intrusionHealthcareNY, US3,183 peopleHHS
2026-05-08Palomar Health Medical GroupHacking / intrusionHealthcareCA, US501 peopleHHS
2026-05-08Verber Dental Group PCHacking / intrusionHealthcareNY, US8,598 peopleHHS
2026-05-08ViaQuest Psychiatric & Behavioral Solutions, LLCHacking / intrusionHealthcareOH, US6,420 peopleHHS
2026-05-07CB Financial Services, Inc.Hacking / intrusionFinance, Insurance & Real EstatePA, US—SEC 8-K
2026-05-07Sanger Skilled Care, LLC dba Cornerstone Care CenterHacking / intrusionHealthcareCA, US1,510 peopleHHS
2026-05-07WEST PHARMACEUTICAL SERVICES INCHacking / intrusionManufacturingPA, US—SEC 8-K
2026-05-06Midland Care Connection, IncHacking / intrusionHealthcareKS, US4,457 peopleHHS
2026-05-05Aroostook Mental Health CenterHacking / intrusionHealthcareME, US501 peopleHHS
2026-05-05Cushman & Wakefield cushmanwakefield.comData breach (cause not stated)——310k accountsHIBP
2026-05-05Passaic County, New JerseyHacking / intrusionHealthcareNJ, US1,109 peopleHHS
2026-05-04BAYADA Home Health Care, Inc.Hacking / intrusionHealthcareNJ, US500 peopleHHS
2026-05-04IKRON CorporationHacking / intrusionHealthcareOH, US12k peopleHHS
2026-05-01CUNNINGHAM PROSTHETIC CARE LLCHacking / intrusionHealthcareME, US2,523 peopleHHS
2026-05-01Capitol Pain InstituteHacking / intrusionHealthcareCO, US695 peopleHHS
2026-05-01Integrated Pain AssociatesHacking / intrusionHealthcareTX, US500 peopleHHS
2026-05-01Mid Florida Dermatology & Plastic SurgeryHacking / intrusionHealthcareFL, US86k peopleHHS
2026-05-01NCH Corporation Employee Benefits PlanHacking / intrusionHealthcareTX, US4,055 peopleHHS
2026-05-01University of Michigan/Michigan MedicineUnauthorised access or disclosureHealthcareMI, US551 peopleHHS
2026-05-01Western Orthopaedics, P.C.Hacking / intrusionHealthcareCO, US113k peopleHHS
2026-04-30Mt. Spokane PediatricsHacking / intrusionHealthcareWA, US32k peopleHHS
2026-04-30Reborn Gaming reborngaming.netData breach (cause not stated)——126 accountsHIBP
2026-04-30Totem Lake Family DentistryHacking / intrusionHealthcareWA, US3,464 peopleHHS
2026-04-29Northwoods Surgery CenterHacking / intrusionHealthcareMN, US5,385 peopleHHS
2026-04-29Tri-Cities GastroenterologyHacking / intrusionHealthcareTN, US67k peopleHHS
2026-04-28FMRS Health Systems, Inc.Hacking / intrusionHealthcareWV, US500 peopleHHS
2026-04-28Vimeo vimeo.comData breach (cause not stated)——119k accountsHIBP
2026-04-27C2N Diagnostics, LLCHacking / intrusionHealthcareMO, US2,027 peopleHHS
2026-04-26CTT ctt.ptData breach (cause not stated)——468k accountsHIBP
2026-04-24Aldrich Pediatric DentistryHacking / intrusionHealthcareIN, US5,900 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 18:47 UTC.