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. Accommodation & Food3
  11. Administrative3
  12. Finance & Insurance2
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
2016-03-01Shell FuelsTheft or lossRetailIN, US—VCDB
2016-02-151-800-FLOWERS'Hacking / intrusionRetailNY, US7,000 recordsVCDB
2016-02-15Wal-Mart Stores IncError / misconfigurationRetailAR, US4,800 recordsVCDB
2016-02-12Shell Gas StationTheft or lossRetailMA, US—VCDB
2016-02-03Circle KTheft or lossRetailIN, US—VCDB
2016-01-24Hi-Tec Sports USA, IncMalwareRetailUnknown—VCDB
2016-01-13Roark's PharmacyTheft or lossRetailTN, US3,000 recordsVCDB
2016-01-08Walgreen CoError / misconfigurationRetailIL, US1 recordsVCDB
2016-01-01Apple IncInsider misuseRetailAU—VCDB
2016-01-01Circle KTheft or lossRetailOH, US—VCDB
2016-01-01Crest Foods Error / misconfigurationRetailOK, US—VCDB
2016-01-01Dillard's IncInsider misuseRetailAR, US—VCDB
2016-01-01NissanHacking / intrusionRetailJP—VCDB
2016-01-01SobeysInsider misuseRetailCA74 recordsVCDB
2016-01-01Target CorpHacking / intrusionRetailMN, US—VCDB
2016-01-01Tesco SuperstoreTheft or lossRetailGB—VCDB
2016-01-01Treasure Coast LexusInsider misuseRetailFL, US68 recordsVCDB
2016-01-01Treasure Coast LexusInsider misuseRetailFL, US68 recordsVCDB
2016-01-01Unnamed organisationError / misconfigurationRetailAL, US—VCDB
2016-01-01Unnamed organisationInsider misuseRetailMO, US—VCDB
2015-12-31Circle KTheft or lossRetailOH, US—VCDB
2015-12-31Shell Gas StationTheft or lossRetailOH, US—VCDB
2015-12-297-ElevenTheft or lossRetailVA, US—VCDB
2015-12-25Kwik Check Convenience StoreTheft or lossRetailTX, US—VCDB
2015-12-24Circle K Gas StationTheft or lossRetailIN, US—VCDB
2015-12-237 ElevenTheft or lossRetailNJ, US—VCDB
2015-12-19Sanrio DigitalHacking / intrusionRetailJP3.3M recordsVCDB
2015-12-10North Atlanta MotorsError / misconfigurationRetailGA, US—VCDB
2015-12-017-ElevenTheft or lossRetailVA, US—VCDB
2015-12-01Alpine VendingTheft or lossRetailCO, US—VCDB
2015-12-01Orchard Turn DevelopmentsHacking / intrusionRetailUS—VCDB
2015-11-05Medicap PharmacyError / misconfigurationRetailIA, US—VCDB
2015-11-04Hucks Food & FuelTheft or lossRetailMO, US—VCDB
2015-11-01Rite Aid CorpInsider misuseRetailNY, US—VCDB
2015-10-14AlibabaHacking / intrusionRetailCN20.6M recordsVCDB
2015-10-01TalkTalkHacking / intrusionRetailGB157k recordsVCDB
2015-10-01TalkTalkHacking / intrusionRetailGB157k recordsVCDB
2015-09-01CVS pharmacyTheft or lossRetailNY, US—VCDB
2015-09-01Harbeson DeliTheft or lossRetailDE, US—VCDB
2015-09-01Preferred Care Pharmaceutical ServicesInsider misuseRetailFL, US—VCDB
2015-08-26strawberrynetError / misconfigurationRetailHK—VCDB
2015-08-12Common MarketHacking / intrusionRetailME, US—VCDB
2015-08-11Yellowfront GroceryMalwareRetailME, US3,000 recordsVCDB
2015-08-01AutoZone IncHacking / intrusionRetailTN, US162k recordsVCDB
2015-08-01CVSTheft or lossRetailNY, US21 recordsVCDB
2015-08-01Moyer's Car Care CenterTheft or lossRetailPA, US—VCDB
2015-08-01Walgreen CoError / misconfigurationRetailIL, US160k recordsVCDB
2015-06-07NorthShore Care SupplyHacking / intrusionRetailIL, US—VCDB
2015-06-01Rite Aid CorporationTheft or lossRetailMD, US—VCDB
2015-06-01ShellTheft or lossRetailCO, 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 18:47 UTC.