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. 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
Healthcare68762241
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

11,849 incidents, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2019-11-01Apple Insider misuseInformationCA, US—VCDB
2019-11-01Australian Broadcasting CorporationError / misconfigurationInformationAU—VCDB
2019-11-01Benchmark benchmark.rsData breach (cause not stated)——93k accountsHIBP
2019-11-01Grace and PortaHacking / intrusionFinance & InsuranceUS—VCDB
2019-11-01IndiHome indihome.co.idData breach (cause not stated)——12.6M accountsHIBP
2019-11-01Lighinthebox.comError / misconfigurationInformationCN12.0M recordsVCDB
2019-11-01Penn-Harris-Madison School CorpRansomwareEducationIN, US—VCDB
2019-11-01Pierson High School RansomwareEducationNY, US—VCDB
2019-11-01Social BluebookHacking / intrusionInformationCA, US217k recordsVCDB
2019-11-01The Walt Disney CompanyError / misconfigurationInformationCA, US1 recordsVCDB
2019-11-01TrueDialogError / misconfigurationInformationTX, US—VCDB
2019-11-01Universarium universarium.orgData breach (cause not stated)——565k accountsHIBP
2019-11-01Unnamed organisationHacking / intrusionInformationCN538.0M recordsVCDB
2019-10-28Indian Railways indianrails.inData breach (cause not stated)——583k accountsHIBP
2019-10-28KickBack AppsError / misconfigurationProfessional ServicesNY, US138.0M recordsVCDB
2019-10-27Children's Choice PediatricsRansomwareHealthcareTX, US—VCDB
2019-10-23Oregon Health authorityInsider misusePublic AdministrationUS-OR, US—VCDB
2019-10-22Audio Visual Services GroupHacking / intrusionInformationCA, US—VCDB
2019-10-20San Bernardino School DistrictRansomwareEducationCA, US—VCDB
2019-10-19Adobe, Inc.Error / misconfigurationProfessional ServicesCA, US7.5M recordsVCDB
2019-10-17EasyJetHacking / intrusionTransportationGB9.0M recordsVCDB
2019-10-16Data Enrichment Exposure From PDL CustomerCredential compilation (no single victim)——622.2M accountsHIBP
2019-10-16People Data Labs (PDL) Error / misconfigurationProfessional ServicesCA, US4.0B recordsVCDB
2019-10-14Gyeonggi-do Fire and Disaster HeadquartersInsider misusePublic AdministrationKR—VCDB
2019-10-10Hookers.nl hookers.nlData breach (cause not stated)——291k accountsHIBP
2019-10-10StarTribune startribune.comData breach (cause not stated)——2.2M accountsHIBP
2019-10-08Freedom HealthcareError / misconfigurationHealthcareFL, US90 recordsVCDB
2019-10-01Accra High CourtTheft or lossPublic AdministrationGH—VCDB
2019-10-01AlphabroderRansomwareRetailPA, US—VCDB
2019-10-01City of Jerez de la FronteraRansomwarePublic AdministrationES-AN, ES—VCDB
2019-10-01City of Jerez de la FronteraRansomwarePublic AdministrationES-AN, ES—VCDB
2019-10-01DCH Health SystemRansomwareHealthcareAL, US—VCDB
2019-10-01Deutsche BahnError / misconfigurationFinance & InsuranceDE—VCDB
2019-10-01LifelabsHacking / intrusionHealthcareCA15.0M recordsVCDB
2019-10-01LiveRampHacking / intrusionProfessional ServicesCA, US1 recordsVCDB
2019-10-01Magnolia Pediatrics RansomwareHealthcareLA, US—VCDB
2019-10-01Queer ChartError / misconfigurationAccommodation & FoodCA, US—VCDB
2019-10-01Town of ConcordTheft or lossPublic AdministrationMA, US—VCDB
2019-09-29Hard Rock StadiumInsider misuseEntertainmentFL, US1 recordsVCDB
2019-09-27The Halloween Spot thehalloweenspot.comData breach (cause not stated)——11k accountsHIBP
2019-09-27Zooville zooville.orgData breach (cause not stated)——71k accountsHIBP
2019-09-25Listowel Wingham Hospitals AllianceRansomwareHealthcareCA-ON, CA—VCDB
2019-09-24AgusiQ-Torrents.pl agusiq-torrents.plData breach (cause not stated)——90k accountsHIBP
2019-09-23Southeastern Minnesota Oral & Maxillofacial SurgeryRansomwareHealthcareUS-MN, US—VCDB
2019-09-21Saint Francis Healthcare SystemRansomwareHealthcareMO, US107k recordsVCDB
2019-09-20Campbell County Memorial HospitalRansomwareHealthcareWY, US—VCDB
2019-09-16ScotiabankError / misconfigurationFinance & InsuranceCA-ON, CA—VCDB
2019-09-10KiwiFarms kiwifarms.netData breach (cause not stated)——4,606 accountsHIBP
2019-09-09Unnamed organisationInsider misuseRetailJP1,300 recordsVCDB
2019-09-07VolusionMalwareRetailUS—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 16:23 UTC.