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
474 breaches reported to HHS
Material incidents, US listed firms
22
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 sectorHealthcare747 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 disclosureDouble CounterData breach (cause not stated) · 4 Oct 2026 · HIBP

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. Healthcare747
  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
Healthcare68060241
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 (29 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
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
Radiology Associates of Richmond · Healthcare21 Jul 2025 – 21 May 2026Hacking / intrusionHHS

6All incidents

Clear

488 incidents match, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2017-01-01eBay IncError / misconfigurationRetailUS-CA, US—VCDB
2016-12-15CVSInsider misuseRetailMA, US20 recordsVCDB
2016-11-29CEFCO gas stationTheft or lossRetailtx, US—VCDB
2016-11-12Asda SuperstoreTheft or lossRetailGB—VCDB
2016-10-31Circle KTheft or lossRetailMO, US—VCDB
2016-10-05Texaco/Kangaroo gas stationTheft or lossRetailMS, US—VCDB
2016-10-04VariousTheft or lossRetailTX, US—VCDB
2016-10-01Capitol PetroTheft or lossRetailUS—VCDB
2016-10-01Chevron CorpTheft or lossRetailGA, US—VCDB
2016-10-01Horizon THCError / misconfigurationRetailAZ, US—VCDB
2016-10-01LukoilTheft or lossRetailPA, US—VCDB
2016-09-30Magna Terra Health ServicesError / misconfigurationRetailCA470 recordsVCDB
2016-09-28Gulf Oil Corp LtdTheft or lossRetailVA, US—VCDB
2016-09-28Kangaroo Gas stationTheft or lossRetailMS, US—VCDB
2016-09-277-ElevenTheft or lossRetailFL, US—VCDB
2016-09-26Gas StationTheft or lossRetailNH, US—VCDB
2016-09-2011-JulTheft or lossRetailFL, US—VCDB
2016-09-09Tesco Petrol StationTheft or lossRetailGB—VCDB
2016-09-06Pilot Travel CenterTheft or lossRetailSC, US—VCDB
2016-09-01Gamestop.comMalwareRetailTX, US—VCDB
2016-09-01Sports DirectHacking / intrusionRetailGB30k recordsVCDB
2016-08-31exxon Gas stationTheft or lossRetailVA, US—VCDB
2016-08-28Christian LouboutinHacking / intrusionRetailUS666 recordsVCDB
2016-08-25Dino StopTheft or lossRetailWI, US—VCDB
2016-08-20Fred's PharmacyTheft or lossRetailTN, US—VCDB
2016-08-16Rite Aid CorporationPhishing / social engineeringRetailNY, US1 recordsVCDB
2016-08-10QuickChekHacking / intrusionRetailNJ, US—VCDB
2016-08-04ExxonMobile Gas StationTheft or lossRetailTX, US—VCDB
2016-08-02Speedy's Mart ExxonTheft or lossRetailVA, US—VCDB
2016-08-01Cloudy Nights and AstronomicsHacking / intrusionRetailUS-OK, US—VCDB
2016-08-01Martin’s Mini-MartTheft or lossRetailVermont, US—VCDB
2016-08-01gas stationTheft or lossRetailCA—VCDB
2016-07-26Factory RV SurplusError / misconfigurationRetailIN, US8,500 recordsVCDB
2016-07-11Interpark CorpHacking / intrusionRetailKR10.3M recordsVCDB
2016-07-08The Co-operative FoodTheft or lossRetailGB—VCDB
2016-07-01Jerry's Artarama N.C., Inc.MalwareRetailNC, US—VCDB
2016-07-01The Hunting & Fishing New ZealandHacking / intrusionRetailNZ—VCDB
2016-07-01Walgreen Co.Error / misconfigurationRetailIL, US1 recordsVCDB
2016-06-24The Topps CompanyError / misconfigurationRetailNY, US—VCDB
2016-06-24Village PharmacyError / misconfigurationRetailOH, US—VCDB
2016-05-25Shell Gas StationTheft or lossRetailNE, US—VCDB
2016-05-13WalmartError / misconfigurationRetailAR, US27k recordsVCDB
2016-05-11Wal-Mart Stores IncTheft or lossRetailAR, US—VCDB
2016-05-01RexallError / misconfigurationRetailCA1 recordsVCDB
2016-04-04Brooks BrothersMalwareRetailNY, US—VCDB
2016-03-22CVSTheft or lossRetailAL, US—VCDB
2016-03-17Cumberland FarmsTheft or lossRetailNC, US16 recordsVCDB
2016-03-087-ElevenTheft or lossRetailFL, US—VCDB
2016-03-07ShellTheft or lossRetailFL, US—VCDB
2016-03-04Marathon GasTheft or lossRetailFL, US—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 2026-10-13 17:55 UTC.