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. Administrative3
  11. Accommodation & Food3
  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
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

890 incidents match, newest first.

DateOrganisationType of attackSectorWhereAffectedSource
2018-07-25Banco de Chile Hacking / intrusionFinance & InsuranceCL14k recordsVCDB
2018-07-24State Bank of IndiaTheft or lossFinance & InsuranceIN—VCDB
2018-07-10MyEtherWalletHacking / intrusionFinance & InsuranceUnknown—VCDB
2018-07-09BancorHacking / intrusionFinance & InsuranceUnknown—VCDB
2018-07-01Intuition College Savings SolutionsInsider misuseFinance & InsuranceFL, US5 recordsVCDB
2018-07-01Panola National BankTheft or lossFinance & InsuranceTX, US—VCDB
2018-06-27SingHealthMalwareFinance & InsuranceSG1.5M recordsVCDB
2018-06-03HumanaHacking / intrusionFinance & InsuranceUS—VCDB
2018-06-01Marine Credit UnionTheft or lossFinance & InsuranceCA, US137 recordsVCDB
2018-06-01TCF BankTheft or lossFinance & InsuranceMN, US—VCDB
2018-06-01TDECUTheft or lossFinance & InsuranceTX, US—VCDB
2018-05-30CNO Financial GroupHacking / intrusionFinance & InsuranceIN, US566k recordsVCDB
2018-04-21Scott Credit UnionTheft or lossFinance & InsuranceUS-IL, US—VCDB
2018-04-01Hornor, Townsend & Kent Theft or lossFinance & InsurancePA, US—VCDB
2018-03-30BancorpSouth BankTheft or lossFinance & InsuranceMS, US—VCDB
2018-03-24Lloyds and Natwest BanksTheft or lossFinance & InsuranceGB—VCDB
2018-03-01Brazil Central BankError / misconfigurationFinance & InsuranceBR120.0M recordsVCDB
2018-02-29Penn Community BankTheft or lossFinance & InsurancePA, US—VCDB
2018-02-24Eastern BankTheft or lossFinance & InsuranceTX, US—VCDB
2018-02-24Zeal Credit UnionTheft or lossFinance & InsuranceMI, US—VCDB
2018-02-19SAMBA Federal Employee Benefit Association Error / misconfigurationFinance & InsuranceMD, US14k recordsVCDB
2018-02-13SunTrust BankTheft or lossFinance & InsuranceFL, US11 recordsVCDB
2018-02-07North American Risk Services, Inc.Hacking / intrusionFinance & InsuranceCA, US604 recordsVCDB
2018-02-01Dover-Phila Federal Credit UnionTheft or lossFinance & InsurancePA, US—VCDB
2018-02-01Sheffield Credit UnionHacking / intrusionFinance & InsuranceGB15k recordsVCDB
2018-01-25BB&TTheft or lossFinance & InsuranceVA, US—VCDB
2018-01-01Amex IndiaError / misconfigurationFinance & InsuranceIN700k recordsVCDB
2018-01-01Anchor Bank Theft or lossFinance & InsuranceWA, US—VCDB
2018-01-01BlackRockError / misconfigurationFinance & InsuranceNY, AE12k recordsVCDB
2018-01-01Dena BankTheft or lossFinance & InsuranceIN39 recordsVCDB
2018-01-01Employees Retirement System of TexasError / misconfigurationFinance & InsuranceTX, US1.2M recordsVCDB
2018-01-01ING BankHacking / intrusionFinance & InsuranceTR20k recordsVCDB
2018-01-01SunTrust Banks Inc.Insider misuseFinance & InsuranceGA, US1.5M recordsVCDB
2017-12-01Hudson Valley Federal Credit UnionTheft or lossFinance & InsuranceNY, US—VCDB
2017-12-01Nissan Canada FinanceHacking / intrusionFinance & InsuranceCA1.3M recordsVCDB
2017-11-01St. Canices Credit UnionError / misconfigurationFinance & InsuranceIE—VCDB
2017-10-25Springfield Credit UnionTheft or lossFinance & InsuranceMA, US—VCDB
2017-10-23GreatBanc Trust CompanyHacking / intrusionFinance & InsuranceTX, US—VCDB
2017-10-19Ameris BankTheft or lossFinance & InsuranceFL, US—VCDB
2017-10-01Citizens BankTheft or lossFinance & InsuranceUS—VCDB
2017-10-01Far Eastern International Bank MalwareFinance & InsuranceUM—VCDB
2017-10-01Federal Teachers Credit Union Theft or lossFinance & InsuranceIN, US—VCDB
2017-10-01Rogue Federal Credit UnionTheft or lossFinance & InsuranceOR, US—VCDB
2017-10-01Shoreview credit unionTheft or lossFinance & InsuranceMN, US—VCDB
2017-10-01Texas Children's Health PlanInsider misuseFinance & InsuranceUS900 recordsVCDB
2017-10-01US Bank in Clarksville Theft or lossFinance & InsuranceTN, US—VCDB
2017-09-25 Citizen’s Bank Theft or lossFinance & InsuranceUS—VCDB
2017-09-25North Shore Community BankTheft or lossFinance & InsuranceIL, US—VCDB
2017-09-14Affinity BankTheft or lossFinance & InsuranceNJ, US—VCDB
2017-09-11Manasquan Bank Theft or lossFinance & InsuranceNJ, 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 19:43 UTC.