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. 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
Healthcare68060241
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 (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
2014-04-18Gas stationTheft or lossRetailTX, US22 recordsVCDB
2014-04-01Shell Oil CompanyTheft or lossRetailTX, US—VCDB
2014-04-01SunocoTheft or lossRetailNY, US—VCDB
2014-04-01Tesco PLCTheft or lossRetailGB—VCDB
2014-04-01The Home DepotMalwareRetailGA, US109.0M recordsVCDB
2014-03-20Publix Super Markets IncTheft or lossRetailFL, US—VCDB
2014-03-09British Columbia Ministry of HealthHacking / intrusionRetailCA1,600 recordsVCDB
2014-03-09Craftsman Book CompanyHacking / intrusionRetailCA, US—VCDB
2014-02-26Kroger Co/TheUnknownRetailOH, US504 recordsVCDB
2014-02-02EbayHacking / intrusionRetailGB—VCDB
2014-02-01HESS AGTheft or lossRetailNY, US—VCDB
2014-02-01Valero Energy CorpTheft or lossRetailCA, US—VCDB
2014-02-01eBay IncHacking / intrusionRetailCA, US145.0M recordsVCDB
2014-01-017-ElevenTheft or lossRetailCO, US—VCDB
2014-01-01Bradley Hubler ChevroletUnknownRetailIN, US—VCDB
2014-01-01CVS Caremark CorpError / misconfigurationRetailRI, US350 recordsVCDB
2014-01-01Circle KTheft or lossRetailCA, US—VCDB
2014-01-01Flying JTheft or lossRetailVA, US—VCDB
2014-01-01HomeplusInsider misuseRetailKR—VCDB
2014-01-01James Dean PharmacyError / misconfigurationRetailAU—VCDB
2014-01-01La Gloria PharmacyInsider misuseRetailFL, US—VCDB
2014-01-01RS McCollTheft or lossRetailGB—VCDB
2014-01-01RS McCollTheft or lossRetailGB—VCDB
2014-01-01Rite Aid CorporationTheft or lossRetailPA, US522 recordsVCDB
2014-01-01SunocoTheft or lossRetailFL, US5 recordsVCDB
2014-01-01SunocoTheft or lossRetailNY, US—VCDB
2014-01-01The Stop & Shop Supermarket CompanyInsider misuseRetailNJ, US—VCDB
2014-01-01True Vision EyecareTheft or lossRetailOH, US542 recordsVCDB
2014-01-01Turf & NeedleError / misconfigurationRetailFL, US236k recordsVCDB
2014-01-01Unnamed organisationTheft or lossRetailGA, US—VCDB
2013-12-24Wireless EmporiumMalwareRetailCA, US—VCDB
2013-12-01Purple Cow gas stationUnknownRetailAL, US—VCDB
2013-12-01Well.caHacking / intrusionRetailCA—VCDB
2013-11-18Network Pharmacy KnoxvilleTheft or lossRetailTN, US9,602 recordsVCDB
2013-11-15Target CorporationMalwareRetailMN, US110.0M recordsVCDB
2013-11-04Walgreen CoInsider misuseRetailMD, US8 recordsVCDB
2013-11-02Health DimensionTheft or lossRetailMI, US5,370 recordsVCDB
2013-11-01UnknownTheft or lossRetailGB—VCDB
2013-10-12Unnamed organisationTheft or lossRetailEngland, GB—VCDB
2013-10-05Nordstrom, Inc.Theft or lossRetailFL, US—VCDB
2013-10-017-ELEVEN, INC.Theft or lossRetailNY, US—VCDB
2013-09-29Cottage Health SystemsError / misconfigurationRetailCA, US32k recordsVCDB
2013-09-01Amcal PharmacyError / misconfigurationRetailAU—VCDB
2013-09-01Mobile Gas Station Temple CityTheft or lossRetailCA, US—VCDB
2013-08-25Amazon.com, Inc.Error / misconfigurationRetailWA, US—VCDB
2013-08-19Amazon.com, Inc.Error / misconfigurationRetailWA, US—VCDB
2013-08-15Gordon Auto Body PartsError / misconfigurationRetailPA, US400 recordsVCDB
2013-08-08Temple City Gas StationTheft or lossRetailCA, US—VCDB
2013-08-01chuggerpumps.comUnknownRetailUnknown—VCDB
2013-07-27Sears, Roebuck and Co.Error / misconfigurationRetailIL, 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 20:29 UTC.