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
614
last 12 months, every source
People in US health breaches
70.4M
474 breaches reported to HHS
Material incidents, US listed firms
23
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 sectorHealthcare748 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. Healthcare748
  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. 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
Healthcare68160241
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

Clear

890 incidents match, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2014-10-01BTC-EHacking / intrusionFinance & InsuranceRU568k recordsVCDB
2014-10-01Independence Blue CrossError / misconfigurationFinance & InsurancePA, US13k recordsVCDB
2014-10-01Inland Empire Health PlanTheft or lossFinance & InsuranceCA, US1,030 recordsVCDB
2014-09-19Alliance Workplace SolutionsError / misconfigurationFinance & InsuranceIL, US2 recordsVCDB
2014-09-17Burlington Northern Santa Fe Group Benefits PlanError / misconfigurationFinance & InsuranceTX, US507 recordsVCDB
2014-09-06MetroPlus Health PlanInsider misuseFinance & InsuranceNY, US32k recordsVCDB
2014-09-01Sandy Spring BankTheft or lossFinance & InsuranceMD, US—VCDB
2014-08-01Krungthai BankTheft or lossFinance & InsuranceTH—VCDB
2014-08-01Santander bankTheft or lossFinance & InsuranceNY, US—VCDB
2014-08-01SunTrust Banks IncTheft or lossFinance & InsuranceGA, US225 recordsVCDB
2014-08-01TD BankTheft or lossFinance & InsuranceMA, US—VCDB
2014-07-24Kaiser Permanente Health Plan of ColoradoError / misconfigurationFinance & InsuranceCO, US—VCDB
2014-07-21The Central Bank of KenyaHacking / intrusionFinance & InsuranceKE—VCDB
2014-07-13MintpalHacking / intrusionFinance & InsuranceCA, US—VCDB
2014-07-12City National BankTheft or lossFinance & InsuranceWV, US—VCDB
2014-07-03Emblem HealthError / misconfigurationFinance & InsuranceNY, US802 recordsVCDB
2014-07-03Group Health IncorporatedError / misconfigurationFinance & InsuranceNY, US802 recordsVCDB
2014-07-03eToroHacking / intrusionFinance & InsuranceIL—VCDB
2014-07-01SunTrust Banks IncTheft or lossFinance & InsuranceFL, US—VCDB
2014-07-01SunTrust Banks IncTheft or lossFinance & InsuranceVA, US—VCDB
2014-06-24Community Bank of Oak Park and River ForestTheft or lossFinance & InsuranceIL, US59 recordsVCDB
2014-06-19CareFirst BlueCross BlueShieldHacking / intrusionFinance & InsuranceMD, US1.1M recordsVCDB
2014-06-15American Income LifeUnknownFinance & InsuranceTX, US—VCDB
2014-06-12Americash Loans LLCRansomwareFinance & InsuranceIL, US1,000 recordsVCDB
2014-06-12Americash Loans LLCRansomwareFinance & InsuranceIL, US—VCDB
2014-06-01Bendigo BankTheft or lossFinance & InsuranceAU—VCDB
2014-06-01JPMorgan ChaseHacking / intrusionFinance & InsuranceUS76.0M recordsVCDB
2014-06-01JPMorgan Chase & CoMalwareFinance & InsuranceNY, US83.0M recordsVCDB
2014-06-01Santander BankTheft or lossFinance & InsuranceGB—VCDB
2014-05-24Benjamin F. Edwards Co.RansomwareFinance & InsuranceMO, US—VCDB
2014-05-20Aviva PLCHacking / intrusionFinance & InsuranceGB—VCDB
2014-05-18American Health Inc.Theft or lossFinance & InsurancePR12k recordsVCDB
2014-05-01LifeWiseUnknownFinance & InsuranceUS250k recordsVCDB
2014-05-01LifeWiseHacking / intrusionFinance & InsuranceOR, Unknown60k recordsVCDB
2014-05-01Mandiri BankTheft or lossFinance & InsuranceJava, ID—VCDB
2014-05-01Premera Blue CrossUnknownFinance & InsuranceUS11.0M recordsVCDB
2014-05-01Student Loans CompanyError / misconfigurationFinance & InsuranceGB3 recordsVCDB
2014-05-01UnknownRansomwareFinance & InsuranceIN—VCDB
2014-04-23Charles Schwab Corp/TheHacking / intrusionFinance & InsuranceCA, US—VCDB
2014-04-19Highmark Inc.Error / misconfigurationFinance & InsurancePA, US3,700 recordsVCDB
2014-04-11Blue Cross and Blue Shield of Kansas CityInsider misuseFinance & InsuranceMO, US2,546 recordsVCDB
2014-04-02Unnamed organisationTheft or lossFinance & InsuranceVA, US—VCDB
2014-04-01NatWest BankTheft or lossFinance & InsuranceGB—VCDB
2014-03-19Willis North AmericaError / misconfigurationFinance & InsuranceNC, US—VCDB
2014-03-04PoloniexHacking / intrusionFinance & InsuranceUnknown—VCDB
2014-03-02FlexcoinHacking / intrusionFinance & InsuranceCA896 recordsVCDB
2014-03-01Blackpool Teaching Hospitals NHS Foundation TrustError / misconfigurationFinance & InsuranceGB6,574 recordsVCDB
2014-03-01Cerberus Mortgage Capital IncHacking / intrusionFinance & InsuranceNY, US97k recordsVCDB
2014-03-01Visa IncHacking / intrusionFinance & InsuranceUS7.0M recordsVCDB
2014-02-17Union Labor Life Insurance CompanyTheft or lossFinance & InsuranceMD, US47k recordsVCDB

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 23:45 UTC.