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
473 breaches reported to HHS
Material incidents, US listed firms
23
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 sectorHealthcare748 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 disclosurePark Dental Partners, Inc.Hacking / intrusion · 7 Oct 2026 · SEC 8-K

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. Healthcare748
  2. Information28
  3. Manufacturing21
  4. Professional Services19
  5. Retail18
  6. Finance, Insurance & Real Estate6
  7. Services5
  8. Technology4
  9. Transportation4
  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
Healthcare68160241
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 (30 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
Park Dental Partners, Inc. · Healthcare228 Aug 2026 – 7 Oct 2026Hacking / intrusionSEC 8-K
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

6All incidents

Clear

3,212 incidents match, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2025-09-22Healthcare InteractiveHacking / intrusionHealthcareMD, US501 peopleHHS
2025-09-22Veradigm LLCHacking / intrusionHealthcareIL, US2.7M peopleHHS
2025-09-19People Encouraging PeopleHacking / intrusionHealthcareMD, US13k peopleHHS
2025-09-18Ennoble Care & Circa Health, LLCHacking / intrusionHealthcareNJ, US36k peopleHHS
2025-09-18Sun Valley Surgery CenterHacking / intrusionHealthcareNV, US27k peopleHHS
2025-09-17Navesink RehabHacking / intrusionHealthcareNJ, US1,428 peopleHHS
2025-09-15Millennium Health Systems, LLCHacking / intrusionHealthcareNJ, US501 peopleHHS
2025-09-15Survival Flight, Inc.Hacking / intrusionHealthcareAZ, US97k peopleHHS
2025-09-14Sandhills Medical FoundationHacking / intrusionHealthcareSC, US169k peopleHHS
2025-09-12North Penn Comprehensive Health Services d.b.a Laurel Health CentersHacking / intrusionHealthcarePA, US991 peopleHHS
2025-09-12Saint Anthony HospitalHacking / intrusionHealthcareIL, US6,679 peopleHHS
2025-09-10PGA Development, Inc.Hacking / intrusionHealthcarePA, US24k peopleHHS
2025-09-10Texas Center for Infectious Disease AssociatesHacking / intrusionHealthcareTX, US1,236 peopleHHS
2025-09-09R.F.M.S. Inc.Hacking / intrusionHealthcareIL, US43k peopleHHS
2025-09-05Coos County Family Health ServicesHacking / intrusionHealthcareNH, US501 peopleHHS
2025-09-05Medical Associates of Brevard, LLCHacking / intrusionHealthcareFL, US247k peopleHHS
2025-09-04Twin Cities Pain ClinicHacking / intrusionHealthcareMN, US3,572 peopleHHS
2025-09-03Retina Group of FloridaHacking / intrusionHealthcareFL, US153k peopleHHS
2025-09-03Teamsters Union 25 Health Services & Insurance PlanHacking / intrusionHealthcareMA, US19k peopleHHS
2025-09-02La Perouse, LLCHacking / intrusionHealthcareNV, US501 peopleHHS
2025-09-02North Oaks Health SystemHacking / intrusionHealthcareLA, US6,243 peopleHHS
2025-08-29Anthony L. Jordan Health CorporationHacking / intrusionHealthcareNY, US2,974 peopleHHS
2025-08-29Carrollton Ear, Nose and Throat, PCHacking / intrusionHealthcareGA, US3,569 peopleHHS
2025-08-29Reimagine NetworkHacking / intrusionHealthcareCA, US4,799 peopleHHS
2025-08-27Greater Pittsburgh Orthopaedics AssociatesHacking / intrusionHealthcarePA, US35k peopleHHS
2025-08-25Assisted Living Pharmacy Service, LLCHacking / intrusionHealthcareWI, US5,590 peopleHHS
2025-08-25College Hometown PharmacyHacking / intrusionHealthcareNY, US9,742 peopleHHS
2025-08-25College Parkside PharmacyHacking / intrusionHealthcareNY, US5,736 peopleHHS
2025-08-25Pacific Imaging Management, LLCHacking / intrusionHealthcareCA, US13k peopleHHS
2025-08-25Prime Therapeutics LLCUnauthorised access or disclosureHealthcareMN, US2,266 peopleHHS
2025-08-22Beech Acres Parenting CenterHacking / intrusionHealthcareOH, US19k peopleHHS
2025-08-22C. B. King Memorial SchoolHacking / intrusionHealthcareAR, US838 peopleHHS
2025-08-22Independent Health Association, Inc.Unauthorised access or disclosureHealthcareNY, US637 peopleHHS
2025-08-22Vance County Department of Social ServicesHacking / intrusionHealthcareNC, US501 peopleHHS
2025-08-21McEwen & AssociatesHacking / intrusionHealthcareTX, US500 peopleHHS
2025-08-21Vital Imaging Medical Diagnostic Centers, LLCHacking / intrusionHealthcareFL, US112k peopleHHS
2025-08-20Arkansas Primary Care ClinicHacking / intrusionHealthcareAR, US2,491 peopleHHS
2025-08-19MRI Associates of St. Pete, Inc. d/b/a Saint Pete MRIHacking / intrusionHealthcareFL, US138k peopleHHS
2025-08-19Revere Health PCHacking / intrusionHealthcareUT, US605 peopleHHS
2025-08-18Bevel Health Medical GroupUnauthorised access or disclosureHealthcarePA, US510 peopleHHS
2025-08-18CareTracker, Inc.Hacking / intrusionHealthcareNY, US501 peopleHHS
2025-08-18Pediatric Otolaryngology Head & Neck Surgery Associates, P.A.Hacking / intrusionHealthcareFL, US43k peopleHHS
2025-08-15Alert Medical AlarmsHacking / intrusionHealthcarePA, US39k peopleHHS
2025-08-15CPAP Medical Supplies and Services Inc.Hacking / intrusionHealthcareFL, US90k peopleHHS
2025-08-15Lake City Cancer Care, LLCHacking / intrusionHealthcareFL, US9,980 peopleHHS
2025-08-15Mower County Health and Human ServicesHacking / intrusionHealthcareMN, US501 peopleHHS
2025-08-15Welcome Dentistry-AnaheimHacking / intrusionHealthcareCA, US1,001 peopleHHS
2025-08-13Welcome Dentistry-Los AngelesHacking / intrusionHealthcareCA, US1,001 peopleHHS
2025-08-12Tombigbee Healthcare Authority dba Whitfield Regional HospitalHacking / intrusionHealthcareAL, US58k peopleHHS
2025-08-11Dr. Doug's Pediatric DentistryHacking / intrusionHealthcareUT, US3,590 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 2026-10-14 00:22 UTC.