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
614
last 12 months, every source
People in US health breaches
70.5M
478 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 sectorHealthcare756 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. Healthcare756
  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
Healthcare68762241
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

11,849 incidents, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2018-11-09Hy-VeeMalwareRetailUS-IA,US-IL,US-KS,US-MN,US-MO,US-NE,US-SD,US-WI, US5.3M recordsVCDB
2018-11-05Adapt adapt.ioData breach (cause not stated)——9.4M accountsHIBP
2018-11-04WPSandbox wpsandbox.ioData breach (cause not stated)——858 accountsHIBP
2018-11-03Società Italiana degli Autori ed Editori siae.itData breach (cause not stated)——15k accountsHIBP
2018-11-01Burlington Police Department, North Carolina Hacking / intrusionPublic AdministrationNC, US1 recordsVCDB
2018-11-01ChevronTheft or lossMiningID, US—VCDB
2018-11-01Epoch Trading PostHacking / intrusionRetailUS-NJ, US—VCDB
2018-11-01United Consumers Credit UnionTheft or lossFinance & InsuranceUS-MO, US—VCDB
2018-11-01VerizonInsider misuseInformationGA, US—VCDB
2018-11-01ally bankError / misconfigurationFinance & InsuranceUS—VCDB
2018-11-01googleError / misconfigurationInformationCA, US52.0M recordsVCDB
2018-10-31XybionError / misconfigurationInformationNJ, US7,001 recordsVCDB
2018-10-29Elasticsearch Instance of Sales Leads on AWSCredential compilation (no single victim)——5.8M accountsHIBP
2018-10-28QinetiQInsider misuseProfessional ServicesGB—VCDB
2018-10-27Oregon Construction Contractors BoardUnknownPublic AdministrationUS-OR, US466 recordsVCDB
2018-10-26York CityError / misconfigurationPublic AdministrationGB—VCDB
2018-10-21GoldSilver goldsilver.comData breach (cause not stated)——243k accountsHIBP
2018-10-20trade.ioUnknownFinance & InsuranceCH-VD, CH50.0M recordsVCDB
2018-10-16Eatigo eatigo.comData breach (cause not stated)——2.8M accountsHIBP
2018-10-12Pluto TV pluto.tvData breach (cause not stated)——3.2M accountsHIBP
2018-10-10Morele.net morele.netData breach (cause not stated)——2.5M accountsHIBP
2018-10-07The Little ClinicError / misconfigurationHealthcareTN, US11k recordsVCDB
2018-10-07Wife Lovers wifelovers.comData breach (cause not stated)——1.3M accountsHIBP
2018-10-05You've Been ScrapedCredential compilation (no single victim)——66.1M accountsHIBP
2018-10-01AustralHacking / intrusionManufacturingAU—VCDB
2018-10-01Indiana National Guard RansomwarePublic AdministrationIN, US—VCDB
2018-10-01VimeWorld vimeworld.comData breach (cause not stated)——3.1M accountsHIBP
2018-10-01sky brasilError / misconfigurationManufacturingBR—VCDB
2018-09-30Girl Scouts of Orange CountyHacking / intrusionOther ServicesCA, US28k recordsVCDB
2018-09-24Raley’s SupermarketsTheft or lossRetailCA, US10k recordsVCDB
2018-09-11Kayo.moe Credential Stuffing ListCredential compilation (no single victim)——41.8M accountsHIBP
2018-09-11Maffi ClinicRansomwareHealthcareAZ, US10k recordsVCDB
2018-09-08Ameri-ChoiceTheft or lossFinance & InsurancePA, US—VCDB
2018-09-05Color Dating colordatingapp.comData breach (cause not stated)——221k accountsHIBP
2018-09-05Knuddels knuddels.deData breach (cause not stated)——808k accountsHIBP
2018-09-03Aspire HealthHacking / intrusionHealthcareTN, US124 recordsVCDB
2018-09-01Andhra Pradesh government Error / misconfigurationPublic AdministrationIN20.0M recordsVCDB
2018-09-01Multiplayer.it multiplayer.itData breach (cause not stated)——504k accountsHIBP
2018-09-01grindrInsider misuseInformationUS-CA, US—VCDB
2018-08-29R&G TravelmartTheft or lossRetailWI, US—VCDB
2018-08-27New England DermatologyError / misconfigurationHealthcareMA, US16k recordsVCDB
2018-08-25Atlas Quantum atlasquantum.comData breach (cause not stated)——261k accountsHIBP
2018-08-24HTH Studios hthstudios.comData breach (cause not stated)——412k accountsHIBP
2018-08-16SpyFone spyfone.comData breach (cause not stated)——44k accountsHIBP
2018-08-15Ryde HospitalError / misconfigurationHealthcareAU1 recordsVCDB
2018-08-10Association of National AdvertisersHacking / intrusionProfessional ServicesDC, US1 recordsVCDB
2018-08-10St.Joseph CountyError / misconfigurationPublic AdministrationIN, US541 recordsVCDB
2018-08-08ComcastHacking / intrusionInformationUS—VCDB
2018-08-07HauteLook hautelook.comData breach (cause not stated)——28.5M accountsHIBP
2018-08-07Professional Golfers' Association of AmericaRansomwareEntertainmentUS—VCDB

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 22:33 UTC.