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
473 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. Transportation4
  9. Technology4
  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
Healthcare68160241
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 (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
2013-02-01Peoples Bank of CommerceTheft or lossFinance & InsuranceMN, US—VCDB
2013-02-01St. Mary's BankMalwareFinance & InsuranceNH, US116k recordsVCDB
2013-02-01United States Federal ReserveHacking / intrusionFinance & InsuranceDC, US—VCDB
2013-01-24Equity Trust CompanyUnknownFinance & InsuranceOH, US—VCDB
2013-01-24Equity Trust CompanyHacking / intrusionFinance & InsuranceSD, US—VCDB
2013-01-17Group Health IncorporatedUnknownFinance & InsuranceNY, US1,771 recordsVCDB
2013-01-17OHP PHSP, Inc.UnknownFinance & InsuranceNY, US28k recordsVCDB
2013-01-15CelerantHacking / intrusionFinance & InsuranceUS—VCDB
2013-01-07Anthem Blue Cross Blue ShieldInsider misuseFinance & InsuranceVA, US2,206 recordsVCDB
2013-01-01ANGLO IRISH BANK CORPORATION PLCError / misconfigurationFinance & InsuranceIE77 recordsVCDB
2013-01-01Absa Group LimitedHacking / intrusionFinance & InsuranceZA—VCDB
2013-01-01Alabama State Employees Insurance Board Insider misuseFinance & InsuranceAL, US100 recordsVCDB
2013-01-01American Express Travel Related Services Company, Inc and/or it's affiliates ('AXP')UnknownFinance & InsuranceNY, US—VCDB
2013-01-01Axis Bank LimitedTheft or lossFinance & InsuranceIN37 recordsVCDB
2013-01-01Bank of AmericaError / misconfigurationFinance & InsuranceNC, US—VCDB
2013-01-01Bank of America CorporationMalwareFinance & InsuranceUS—VCDB
2013-01-01Barclays Bank PLCPhishing / social engineeringFinance & InsuranceGB—VCDB
2013-01-01Bord Gais Employee Credit UnionTheft or lossFinance & InsuranceIE—VCDB
2013-01-01Boston Teachers Union Health and Welfare FundError / misconfigurationFinance & InsuranceMA, US506 recordsVCDB
2013-01-01CTBC BANK CO., LTD.Error / misconfigurationFinance & InsuranceTW33k recordsVCDB
2013-01-01CareFirstError / misconfigurationFinance & InsuranceMD, US—VCDB
2013-01-01CareFirstError / misconfigurationFinance & InsuranceMD, US1 recordsVCDB
2013-01-01Central Laborers' Pension FundTheft or lossFinance & InsuranceIL, US30k recordsVCDB
2013-01-01Chase BankTheft or lossFinance & InsuranceUnknown—VCDB
2013-01-01Chase BankTheft or lossFinance & InsuranceCA, US—VCDB
2013-01-01Citibank, N.A.Theft or lossFinance & InsuranceUS—VCDB
2013-01-01Citigroup Inc.Error / misconfigurationFinance & InsuranceNY, US150k recordsVCDB
2013-01-01Citigroup Inc.Error / misconfigurationFinance & InsuranceNY, US—VCDB
2013-01-01Coast Capital Savings Credit UnionInsider misuseFinance & InsuranceCA—VCDB
2013-01-01Consumer's Credit UnionInsider misuseFinance & InsuranceIL, US—VCDB
2013-01-01Defense Contracts South FCUUnknownFinance & InsuranceTX, US100 recordsVCDB
2013-01-01Federal Reserve BankHacking / intrusionFinance & InsuranceIL, US—VCDB
2013-01-01Fidelity LifeTheft or lossFinance & InsuranceAU—VCDB
2013-01-01First Niagara Financial Group IncError / misconfigurationFinance & InsuranceNY, US1 recordsVCDB
2013-01-01GE Capital Retail Bank (GECRB)UnknownFinance & InsuranceCT, US—VCDB
2013-01-01HealthMarketsError / misconfigurationFinance & InsuranceTX, US—VCDB
2013-01-01Hunter United Credit UnionError / misconfigurationFinance & InsuranceAU350 recordsVCDB
2013-01-01ICICI PRUDENTIAL ASSET MANAGEMENT COMPANY LIMITEDHacking / intrusionFinance & InsuranceIN—VCDB
2013-01-01IN Central Bank of IndiaHacking / intrusionFinance & InsuranceIN—VCDB
2013-01-01IN State Bank of PatialaHacking / intrusionFinance & InsuranceIN—VCDB
2013-01-01Irish Bank Resolution CorporationError / misconfigurationFinance & InsuranceIE77 recordsVCDB
2013-01-01JPMorgan Chase & Co.Error / misconfigurationFinance & InsuranceNY, US—VCDB
2013-01-01Lincoln Credit CenterUnknownFinance & InsuranceCA, US—VCDB
2013-01-01Members 1st Federal Credit UnionInsider misuseFinance & InsurancePA, US1 recordsVCDB
2013-01-01Missouri Credit UnionError / misconfigurationFinance & InsuranceMO, US39k recordsVCDB
2013-01-01NatWestInsider misuseFinance & InsuranceGB—VCDB
2013-01-01Navy Federal Credit UnionPhishing / social engineeringFinance & InsuranceVA, US20 recordsVCDB
2013-01-01PUBLIC EMPLOYEES RETIREMENT SYSTEM, CALIFORNIAInsider misuseFinance & InsuranceCA, US—VCDB
2013-01-01Pipeline Data Inc. (SecurePay)MalwareFinance & InsuranceGA, US—VCDB
2013-01-01Standard Charted Bank KoreaInsider misuseFinance & InsuranceKR130k 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 2026-10-14 03:40 UTC.