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. Technology4
  9. Transportation4
  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
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

11,847 incidents, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2022-03-01Gol Tours LTDHacking / intrusionAdministrativeIL3.0M recordsVCDB
2022-02-28Explore Talent (July 2024) exploretalent.comData breach (cause not stated)——5.4M accountsHIBP
2022-02-23NVIDIA nvidia.comData breach (cause not stated)——71k accountsHIBP
2022-02-07GiveSendGo givesendgo.comData breach (cause not stated)——90k accountsHIBP
2022-01-31Leaked Reality leakedreality.comData breach (cause not stated)——115k accountsHIBP
2022-01-29MacGeneration macg.coData breach (cause not stated)——101k accountsHIBP
2022-01-21Sundry Files sundryfiles.comData breach (cause not stated)——274k accountsHIBP
2022-01-05Doxbin doxbin.comData breach (cause not stated)——371k accountsHIBP
2022-01-01National Registration Department Hacking / intrusionPublic AdministrationMY22.5M recordsVCDB
2022-01-01Twitter twitter.comData breach (cause not stated)——6.7M accountsHIBP
2022-01-01Unknown ContractorHacking / intrusionInformationCH512k recordsVCDB
2021-12-28Carding Mafia (December 2021) cardmafia.ccData breach (cause not stated)——304k accountsHIBP
2021-12-23FlexBooker flexbooker.comData breach (cause not stated)——3.8M accountsHIBP
2021-12-05RedLine StealerCredential compilation (no single victim)——442k accountsHIBP
2021-12-01Aditya Birla Fashion and Retail abfrl.comData breach (cause not stated)——5.5M accountsHIBP
2021-12-01Battelle for KidsRansomwareProfessional ServicesOH, US500k recordsVCDB
2021-11-23Travelio travelio.comData breach (cause not stated)——471k accountsHIBP
2021-11-22ZAP-Hosting zap-hosting.comData breach (cause not stated)——747k accountsHIBP
2021-11-05Stripchat stripchat.comData breach (cause not stated)——10.0M accountsHIBP
2021-11-03Robinhood robinhood.comData breach (cause not stated)——5.0M accountsHIBP
2021-11-02BTC-Alpha btc-alpha.comData breach (cause not stated)——362k accountsHIBP
2021-10-29CyberServe cyberserve.co.ilData breach (cause not stated)——1.1M accountsHIBP
2021-10-28JukinMedia jukinmedia.comData breach (cause not stated)——314k accountsHIBP
2021-10-14Animeify animeify.netData breach (cause not stated)——808k accountsHIBP
2021-10-12CoinMarketCap coinmarketcap.comData breach (cause not stated)——3.1M accountsHIBP
2021-10-08ActMobile actmobile.comData breach (cause not stated)——1.6M accountsHIBP
2021-10-04Protemps protemps.com.sgData breach (cause not stated)——50k accountsHIBP
2021-10-02Fantasy Football Hub fantasyfootballhub.co.ukData breach (cause not stated)——66k accountsHIBP
2021-10-01Deep6.AIError / misconfigurationProfessional ServicesCA, US422.0M recordsVCDB
2021-10-01Fitmart fitmart.deData breach (cause not stated)——214k accountsHIBP
2021-10-01Ministry of DefenseError / misconfigurationPublic AdministrationGB—VCDB
2021-09-13Epik epik.comData breach (cause not stated)——15.0M accountsHIBP
2021-09-11Republican Party of Texas texasgop.orgData breach (cause not stated)——73k accountsHIBP
2021-09-04Dennis Kirk denniskirk.comData breach (cause not stated)——1.4M accountsHIBP
2021-09-03Howard UniversityRansomwareEducationDC, US—VCDB
2021-08-25DatPiff datpiff.comData breach (cause not stated)——7.5M accountsHIBP
2021-08-24Neuchâtel Cantonal Bank (BCN)Hacking / intrusionFinance & InsuranceCH—VCDB
2021-08-20AT&TCredential compilation (no single victim)——49.1M accountsHIBP
2021-08-20Imavex imavex.comData breach (cause not stated)——878k accountsHIBP
2021-08-19Public Business Data bvdinfo.comData breach (cause not stated)——27.9M accountsHIBP
2021-08-15Have Fun Teaching havefunteaching.comData breach (cause not stated)——27k accountsHIBP
2021-08-05Misattributed Habib's Data habibs.com.brData breach (cause not stated)——3.5M accountsHIBP
2021-08-04Oshawa City Fire ServicesError / misconfigurationPublic AdministrationCA160 recordsVCDB
2021-08-01Maritz Holding Inc.Error / misconfigurationProfessional ServicesMO, US—VCDB
2021-08-01Open Subtitles opensubtitles.orgData breach (cause not stated)——6.8M accountsHIBP
2021-08-01T-MobileHacking / intrusionInformationWA, US40.0M recordsVCDB
2021-07-28AndroidLista androidlista.comData breach (cause not stated)——6.6M accountsHIBP
2021-07-17Guntrader guntrader.ukData breach (cause not stated)——112k accountsHIBP
2021-07-16Federal Bureau of InvestigationError / misconfigurationPublic AdministrationUS1.9M recordsVCDB
2021-07-12DuPage Medical GroupHacking / intrusionHealthcareIL, US600k 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 03:35 UTC.