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
616
last 12 months, every source
People in US health breaches
70.4M
475 breaches reported to HHS
Material incidents, US listed firms
23
SEC 8-K Item 1.05, 12 months
Accounts in new breach records
522.5M
126 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 sectorHealthcare752 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. Healthcare752
  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. 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
Healthcare68461241
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 (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

11,845 incidents, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2024-09-28Internet Archive archive.orgData breach (cause not stated)——31.1M accountsHIBP
2024-09-25French CitizensCredential compilation (no single victim)——28.4M accountsHIBP
2024-09-17Muah.AI muah.aiData breach (cause not stated)——1.9M accountsHIBP
2024-09-12Instituto Nacional de Deportes de Chile ind.clData breach (cause not stated)——320k accountsHIBP
2024-09-06Boulanger boulanger.comData breach (cause not stated)——2.1M accountsHIBP
2024-09-06Cultura cultura.comData breach (cause not stated)——1.5M accountsHIBP
2024-08-30HALLIBURTON COHacking / intrusionMiningTX, US—SEC 8-K
2024-08-27CODAC Inc dba CODAC Behavioral Health and CODAC Healthcare, LLCHacking / intrusionHealthcareRI, US9,592 peopleHHS
2024-08-25Burger King Russia burgerkingrus.ruData breach (cause not stated)——3.2M accountsHIBP
2024-08-18MC2 DataCredential compilation (no single victim)——2.1M accountsHIBP
2024-08-15Explore Talent (August 2024) exploretalent.comData breach (cause not stated)——8.9M accountsHIBP
2024-08-15Tracki tracki.comData breach (cause not stated)——373k accountsHIBP
2024-08-15schenkYOU schenkyou.deData breach (cause not stated)——237k accountsHIBP
2024-08-10Chris Leong chrisleong.comData breach (cause not stated)——27k accountsHIBP
2024-08-03Not SOCRadarCredential compilation (no single victim)——282.5M accountsHIBP
2024-07-28Ubook ubook.comData breach (cause not stated)——700k accountsHIBP
2024-07-25Crimson Wine Group, LtdHacking / intrusionManufacturingCA, US—SEC 8-K
2024-07-25META MATERIALS INC.Hacking / intrusionTechnologyA5, US—SEC 8-K
2024-07-19Community Counseling of Bristol County, Inc.Hacking / intrusionHealthcareMA, US45k peopleHHS
2024-07-18Stealer Logs Posted to TelegramInfostealer logs——26.1M accountsHIBP
2024-07-15BASSETT FURNITURE INDUSTRIES INCHacking / intrusionManufacturingVA, US—SEC 8-K
2024-07-09The Heritage Foundation heritage.orgData breach (cause not stated)——72k accountsHIBP
2024-07-07MSI msi.comData breach (cause not stated)——250k accountsHIBP
2024-07-06LuLu luluhypermarket.comData breach (cause not stated)——2.8M accountsHIBP
2024-07-05SONIC AUTOMOTIVE INCHacking / intrusionRetailNC, US—SEC 8-K
2024-07-04AnimeLeague animeleague.netData breach (cause not stated)——192k accountsHIBP
2024-07-04FNTECH fntech.comData breach (cause not stated)——10k accountsHIBP
2024-07-04Husky Owners husky-owners.comData breach (cause not stated)——17k accountsHIBP
2024-07-03Ladies.com ladies.comData breach (cause not stated)——119k accountsHIBP
2024-07-02Regional Obstetrical Consultants PCHacking / intrusionHealthcareTN, US26k peopleHHS
2024-07-01Central Tickets centraltickets.co.ukData breach (cause not stated)——723k accountsHIBP
2024-07-01Otelier otelier.comData breach (cause not stated)——437k accountsHIBP
2024-06-28Shoe Zone shoezone.comData breach (cause not stated)——46k accountsHIBP
2024-06-27BudTrader budtrader.comData breach (cause not stated)——2.7M accountsHIBP
2024-06-24SpyX spyx.comData breach (cause not stated)——2.0M accountsHIBP
2024-06-22Zacks (2024) zacks.comData breach (cause not stated)——12.0M accountsHIBP
2024-06-20Z-lib z-lib.isData breach (cause not stated)——9.7M accountsHIBP
2024-06-09mSpy (2024) mspy.comData breach (cause not stated)——2.4M accountsHIBP
2024-06-05Advance Auto Parts advanceautoparts.comData breach (cause not stated)——79.2M accountsHIBP
2024-06-04Spytech spytech-web.comData breach (cause not stated)——5,645 accountsHIBP
2024-06-01Robinsons Malls robinsonsmalls.comData breach (cause not stated)——196k accountsHIBP
2024-05-31Ticketek ticketek.com.auData breach (cause not stated)——17.6M accountsHIBP
2024-05-30Operation EndgameCredential compilation (no single victim)——16.5M accountsHIBP
2024-05-28Combolists Posted to TelegramCredential compilation (no single victim)——361.5M accountsHIBP
2024-05-25pcTattletale pctattletale.comData breach (cause not stated)——139k accountsHIBP
2024-05-06AT&T INC.Hacking / intrusionTransportation, Communications & UtilitiesTX, US—SEC 8-K
2024-05-06KEY TRONIC CORPHacking / intrusionManufacturingWA, US—SEC 8-K
2024-05-02Medical Express Ambulance Inc. D/B/A Medex AmbulanceHacking / intrusionHealthcareIL, US121k peopleHHS
2024-05-02The Post Millennial thepostmillennial.comData breach (cause not stated)——57.0M accountsHIBP
2024-05-01BRANDYWINE REALTY TRUSTHacking / intrusionFinance, Insurance & Real EstatePA, US—SEC 8-K

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 2026-10-15 10:28 UTC.