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
2017-09-297-ElevenTheft or lossRetailPA, US—VCDB
2017-09-167-ElevenTheft or lossRetailMaryland, US—VCDB
2017-09-01AmazonInsider misuseRetailWA, US—VCDB
2017-09-01Amsterdam Gas StationTheft or lossRetailNY, US—VCDB
2017-09-01BP Gas StationTheft or lossRetailOH, US—VCDB
2017-09-01Chuckles Gas Station Theft or lossRetailIN, US—VCDB
2017-09-01Fauquier gas stations Theft or lossRetailUS—VCDB
2017-09-01Penn Jersey Convenience StoreTheft or lossRetailPA, US—VCDB
2017-09-01Pop ShoppeTheft or lossRetailNC, US—VCDB
2017-09-01Stop and Shop Gas StationTheft or lossRetailCA, US12 recordsVCDB
2017-09-01Tiger Stop Blue Water Gas StatoinTheft or lossRetailSC, US—VCDB
2017-09-01ValeroTheft or lossRetailUS—VCDB
2017-09-01Valero Gas StationTheft or lossRetailTX, US—VCDB
2017-08-29Marathon GasTheft or lossRetailOH, US—VCDB
2017-08-24CVSError / misconfigurationRetailUS—VCDB
2017-08-23JewsonHacking / intrusionRetailGB1,659 recordsVCDB
2017-08-23Sunoco Gas StationTheft or lossRetailUS—VCDB
2017-08-01 Circle KTheft or lossRetailOH, US—VCDB
2017-08-017- ElevenTheft or lossRetailVA, US—VCDB
2017-08-017-ElevenTheft or lossRetailVA, US—VCDB
2017-08-01CeXHacking / intrusionRetailGB2.0M recordsVCDB
2017-08-01Mart Moble StationsTheft or lossRetailUS—VCDB
2017-07-13BP Gas StationTheft or lossRetailMI, US—VCDB
2017-07-01Lowe'sInsider misuseRetailPA, US46 recordsVCDB
2017-07-01Shell Food MartTheft or lossRetailOH, US—VCDB
2017-07-01Tesco ExpressTheft or lossRetailOhio, US—VCDB
2017-06-21Unnamed organisationMalwareRetailCA257k recordsVCDB
2017-06-14Chevron Gas StationTheft or lossRetailFL, US—VCDB
2017-06-017-ElevenTheft or lossRetailTX, US—VCDB
2017-06-01Giant Food StoresTheft or lossRetailPA, US—VCDB
2017-06-01Sebastopol Fast GasTheft or lossRetailCA, US—VCDB
2017-06-01Tigers Den Gas StationTheft or lossRetailPA, US—VCDB
2017-04-017-ElevenTheft or lossRetailVA, US—VCDB
2017-03-01California Association of RealtorsMalwareRetailCA, US1,033 recordsVCDB
2017-03-01Locklear DodgeInsider misuseRetailAL, US267 recordsVCDB
2017-02-10maple's gas stationTheft or lossRetailMS, US—VCDB
2017-02-07Unnamed gas stationTheft or lossRetailMississippi, US—VCDB
2017-02-01Apple Yard FlowersMalwareRetailGB—VCDB
2017-02-01Monroe Shell StationTheft or lossRetailOH, US—VCDB
2017-01-24Monarch BeveragePhishing / social engineeringRetailIN, US—VCDB
2017-01-11CVS HealthTheft or lossRetailMI, US—VCDB
2017-01-017-ElevenTheft or lossRetailFL, US—VCDB
2017-01-01Autoway Car SalesInsider misuseRetailMO, US20 recordsVCDB
2017-01-01Circle KTheft or lossRetailNC, US—VCDB
2017-01-01Heart Cup CafeInsider misuseRetailIN9 recordsVCDB
2017-01-01LKM MedicalTheft or lossRetailOK, US3,400 recordsVCDB
2017-01-01MobilTheft or lossRetailCA, US—VCDB
2017-01-01Mobil MartTheft or lossRetailCT, US—VCDB
2017-01-01ShellTheft or lossRetailOH, US—VCDB
2017-01-01WoolworthsHacking / intrusionRetailAU—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 17:10 UTC.