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
612
last 12 months, every source
People in US health breaches
70.5M
476 breaches reported to HHS
Material incidents, US listed firms
21
SEC 8-K Item 1.05, 12 months
Accounts in new breach records
522.5M
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 sectorHealthcare754 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. Healthcare754
  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. 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
Healthcare68562241
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 (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

11,847 incidents, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2020-04-01Service NSWHacking / intrusionPublic AdministrationAU186k recordsVCDB
2020-04-01Singapore department of healthInsider misusePublic AdministrationSG—VCDB
2020-04-01Teespring teespring.comData breach (cause not stated)——8.2M accountsHIBP
2020-04-01Wuhan Institute of VirologyHacking / intrusionProfessional ServicesCN—VCDB
2020-03-27Frederick W. Howarth III d/b/a TBG West Insurance ServicesRansomwareFinance & InsuranceUS—VCDB
2020-03-27Glofox glofox.comData breach (cause not stated)——2.3M accountsHIBP
2020-03-27집꾸미기 ggumim.co.krData breach (cause not stated)——1.3M accountsHIBP
2020-03-26Chatbooks chatbooks.comData breach (cause not stated)——2.5M accountsHIBP
2020-03-25James jamesdelivery.com.brData breach (cause not stated)——1.5M accountsHIBP
2020-03-23Hammersmith Medicines ResearchRansomwareProfessional ServicesGB—VCDB
2020-03-22123RF 123rf.comData breach (cause not stated)——8.7M accountsHIBP
2020-03-13ExecuPharmRansomwareManufacturingUS—VCDB
2020-03-10Corporate Benefit MarketingHacking / intrusionProfessional ServicesCA, US—VCDB
2020-03-09AST LLCHacking / intrusionProfessional ServicesNJ, US200 recordsVCDB
2020-03-07FoodmanduHacking / intrusionTransportationNP50k recordsVCDB
2020-03-04Lead HunterCredential compilation (no single victim)——68.7M accountsHIBP
2020-03-01Catho catho.com.brData breach (cause not stated)——1.2M accountsHIBP
2020-03-01Champaign-Urbana Public Health DistrictRansomwarePublic AdministrationIL, US—VCDB
2020-03-01ComcastError / misconfigurationInformationPA, US200k recordsVCDB
2020-03-01Keepnet LabsError / misconfigurationWholesaleGB—VCDB
2020-03-01Kerala State Health DepartmentHacking / intrusionPublic AdministrationIN—VCDB
2020-03-01Mental Health Center of Boulder County Inc. dba Mental Health PartnersHacking / intrusionHealthcareCO, US—VCDB
2020-03-01NHS LanarkshireError / misconfigurationPublic AdministrationGB—VCDB
2020-03-01Small Business AdministrationError / misconfigurationPublic AdministrationDC, US—VCDB
2020-03-01Stone GroupHacking / intrusionWholesaleGB—VCDB
2020-03-01TokopediaUnknownRetailID91.0M recordsVCDB
2020-03-01University Hospital BrnoRansomwareHealthcareCZ—VCDB
2020-03-01VertaforeError / misconfigurationInformationFL, US27.7M recordsVCDB
2020-03-01the Karnataka health department Error / misconfigurationPublic AdministrationIN700 recordsVCDB
2020-02-28Tamodo tamodo.comData breach (cause not stated)——495k accountsHIBP
2020-02-27AnimeGame animegame.meData breach (cause not stated)——1.4M accountsHIBP
2020-02-27Simon Fraser UniversityRansomwareEducationCA—VCDB
2020-02-21TrueFire truefire.comData breach (cause not stated)——600k accountsHIBP
2020-02-20Center for Health Education, Medicine & Dentistry ("CHEMED") Hacking / intrusionHealthcareNJ, US—VCDB
2020-02-20Covve covve.comData breach (cause not stated)——22.8M accountsHIBP
2020-02-20Hong Kong Office of Government Chief Information OfficerTheft or lossPublic AdministrationHK122 recordsVCDB
2020-02-16Slickwraps slickwraps.comData breach (cause not stated)——858k accountsHIBP
2020-02-14Straffic straffic.ioData breach (cause not stated)——48.6M accountsHIBP
2020-02-13FHN (Family Healthcare Network)Hacking / intrusionHealthcareIL, US—VCDB
2020-02-13State of Israel Likud partyError / misconfigurationOther ServicesIL—VCDB
2020-02-13Unnamed organisationUnknownFinance & InsuranceZA—VCDB
2020-02-10Home Chef homechef.comData breach (cause not stated)——8.8M accountsHIBP
2020-02-10NextMotionError / misconfigurationHealthcareFR900k recordsVCDB
2020-02-06Indiana UniversityError / misconfigurationEducationUS-IN, US100k recordsVCDB
2020-02-04Breach Candy HospitalError / misconfigurationHealthcareIN—VCDB
2020-02-02City of PaducahRansomwarePublic AdministrationKY, US—VCDB
2020-02-02Unnamed organisationError / misconfigurationInformationGB8.0M recordsVCDB
2020-02-01 Bretagne TélécomRansomwareInformationFR—VCDB
2020-02-01CovveError / misconfigurationInformationCY23.0M recordsVCDB
2020-02-01Le FigaroError / misconfigurationInformationFR7.4B recordsVCDB

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 2026-10-16 12:09 UTC.