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. Administrative3
  11. Accommodation & Food3
  12. Other Services2
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
2026-09-21Imagine the PossibilitiesHacking / intrusionHealthcareIA, US1,693 peopleHHS
2026-09-21Woodlawn HospitalHacking / intrusionHealthcareIN, US742 peopleHHS
2026-09-19Applied Healthcare Nursing Division, Inc. d/b/a Doctor's Choice Home CareHacking / intrusionHealthcareTX, US14k peopleHHS
2026-09-18OU Medicine, Inc.Unauthorised access or disclosureHealthcareOK, US854 peopleHHS
2026-09-17Three Oaks Hospice, IncorporatedHacking / intrusionHealthcareTX, US37k peopleHHS
2026-09-16Advanced Radiology Services, P.C.Hacking / intrusionHealthcareMI, US826 peopleHHS
2026-09-16AngMar Management ServicesHacking / intrusionHealthcareTX, US126k peopleHHS
2026-09-16At Home Medical, Inc.Unauthorised access or disclosureHealthcareNJ, US1,091 peopleHHS
2026-09-16WindRose Health NetworkHacking / intrusionHealthcareIN, US33k peopleHHS
2026-09-15Bacon County Health Services, Inc.Hacking / intrusionHealthcareGA, US501 peopleHHS
2026-09-15Camden-on-Gauley Medical CenterHacking / intrusionHealthcareWV, US501 peopleHHS
2026-09-14Clover HealthHacking / intrusionHealthcareMN, US139k peopleHHS
2026-09-14Lakes Region Visiting Nursing AssociationHacking / intrusionHealthcareNH, US1,274 peopleHHS
2026-09-10Alma Family ServicesHacking / intrusionHealthcareCA, US2,753 peopleHHS
2026-09-10Comprehensive Orthopedics & Musculoskeletal Care, LLCHacking / intrusionHealthcareCT, US22k peopleHHS
2026-09-10Interim HealthCare Inc.Hacking / intrusionHealthcareFL, US1,283 peopleHHS
2026-09-10Persona DentalHacking / intrusionHealthcareMN, US3,386 peopleHHS
2026-09-10Vernon & Waldrep OB-Gyn AssociatesHacking / intrusionHealthcareTX, US17k peopleHHS
2026-09-09Azle Cube Smiles PLLCHacking / intrusionHealthcareTX, US3,280 peopleHHS
2026-09-09Next Level Medical, LLCHacking / intrusionHealthcareTX, US501 peopleHHS
2026-09-09Novocure Inc.Hacking / intrusionHealthcarePA, US1,464 peopleHHS
2026-09-08Lexington Hospital CorporationHacking / intrusionHealthcareTN, US67k peopleHHS
2026-09-06Hamaspik (Choice and Inc.)Hacking / intrusionHealthcareNY, US8,181 peopleHHS
2026-09-04Beaver County Behavioral HealthHacking / intrusionHealthcarePA, US501 peopleHHS
2026-09-04COMHAR, Inc.Hacking / intrusionHealthcarePA, US501 peopleHHS
2026-09-04LHC Group, Inc.Hacking / intrusionHealthcareLA, US500 peopleHHS
2026-09-04Life Unlimited, Inc.Hacking / intrusionHealthcareMO, US1,530 peopleHHS
2026-09-04Minuteman Press MaconUnauthorised access or disclosureHealthcareGA, US1,489 peopleHHS
2026-09-04Provident Behavioral HealthHacking / intrusionHealthcareIL, US25k peopleHHS
2026-09-03Capital Family PhysiciansHacking / intrusionHealthcareNC, US2,545 peopleHHS
2026-09-02Craneware, Inc.Hacking / intrusionHealthcareFL, US501 peopleHHS
2026-09-02Oculus PathologyHacking / intrusionHealthcareTX, US20k peopleHHS
2026-08-31The Foot and Ankle Wellness Center of Western PennsylvaniaUnauthorised access or disclosureHealthcarePA, US653 peopleHHS
2026-08-29Vista Del Mar Child and Family ServicesHacking / intrusionHealthcareCA, US500 peopleHHS
2026-08-28Park Dental Partners, Inc.Hacking / intrusionHealthcareMN, US—SEC 8-K
2026-08-28White River Junction VA Medical CenterUnauthorised access or disclosureHealthcareVT, US1,408 peopleHHS
2026-08-27AnMed HealthHacking / intrusionHealthcareSC, US501 peopleHHS
2026-08-27Kim KnobbeUnauthorised access or disclosureHealthcareMO, US12k peopleHHS
2026-08-27Psychiatry of Texas PLLCHacking / intrusionHealthcareTX, US5,902 peopleHHS
2026-08-26McDermott Will & Schulte LLPUnauthorised access or disclosureHealthcareIL, US5,427 peopleHHS
2026-08-25Advantage Home Health CareHacking / intrusionHealthcareIN, US20k peopleHHS
2026-08-25Shoshone Medical CenterHacking / intrusionHealthcareID, US553 peopleHHS
2026-08-25WellDyneRX, LLCHacking / intrusionHealthcareFL, US500 peopleHHS
2026-08-22Grafton City Hospital, Inc.Hacking / intrusionHealthcareWV, US1,215 peopleHHS
2026-08-21Allergic Disease Associates, P.C. dba The Asthma CenterHacking / intrusionHealthcarePA, US5,321 peopleHHS
2026-08-21Baraga County Memorial HospitalHacking / intrusionHealthcareMI, US501 peopleHHS
2026-08-21Hawaii Dental Group, Inc DBA Hawaii Family DentalHacking / intrusionHealthcareHI, US46k peopleHHS
2026-08-21Kern Psychiatric Health and Wellness Center, IncHacking / intrusionHealthcareCA, US51k peopleHHS
2026-08-21North Dakota Department of Health and Human Services, Developmental Disabilities SectionHacking / intrusionHealthcareND, US1,750 peopleHHS
2026-08-21Premier Medical Group of the Hudson Valley P.C.Hacking / intrusionHealthcareNY, US282k 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 15:28 UTC.