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
- 70.5M
- 477 breaches reported to HHS
- Material incidents, US listed firms
- 21
- SEC 8-K Item 1.05, 12 months
- Accounts in new breach records
- 504.9M
- 124 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 sectorHealthcare756 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
2Trends
The last 24 months, dated when the incident happened where the source says, otherwise when it was reported.
- Hacking / intrusion799
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion799
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion799
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion77%
- Data breach (cause not stated)15%
- Unauthorised access or disclosure6%
- Ransomware1%
- Credential compilation (no single victim)0%
- Infostealer logs0%
- Theft or loss0%
- Error / misconfiguration0%
3Sectors
Who the incidents hit, where the source names a sector, and how each sector was attacked.
- In healthcare, 91% of incidents were hacking / intrusion.
| Hacking / intrusion | Data breach (cause not stated) | Unauthorised access or disclosure | Ransomware | Theft or loss | Error / misconfiguration | |
|---|---|---|---|---|---|---|
| Healthcare | 687 | 62 | 2 | 4 | 1 | |
| Information | 25 | 3 | ||||
| Manufacturing | 20 | 1 | ||||
| Professional Services | 18 | 1 | ||||
| Retail | 17 | 1 | ||||
| Finance, Insurance & Real Estate | 6 | |||||
| Services | 5 | |||||
| Technology | 4 |
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.
- 1Conduent Business Services LLC62.2M people
- 2DentaQuest, LLC15.0M people
- 3Aflac Incorporated (“Aflac”)13.9M people
- 4Aesto, LLC9.5M people
- 5Episource, LLC6.7M people
- 6AdaptHealth, LLC4.1M people
- 7Unlimited Technology Systems, LLC3.8M people
- 8CareCloud, Inc.3.8M people
- 11win96.2M accounts
- 2Under Armour72.7M accounts
- 3Suno55.3M accounts
- 4Canadian Tire38.3M accounts
- 5Addi34.5M accounts
- 6SoundCloud29.8M accounts
- 7Speedio27.5M accounts
- 8Paidwork23.3M accounts
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.
| Organisation | Disclosures | First – latest | Types of attack | Sources |
|---|---|---|---|---|
| Fieldtex Products, Inc. · Healthcare | 5 | 20 Nov 2025 – 12 Dec 2025 | Hacking / intrusion | HHS |
| AltaMed Health Services Corporation · Healthcare | 3 | 1 Jun 2023 – 26 Feb 2026 | Hacking / intrusionRansomwareUnauthorised access or disclosure | HHS, VCDB |
| United Healthcare Student Resources · Finance & Insurance | 3 | 1 Jun 2023 – 1 Jun 2023 | Ransomware | VCDB |
| DentaQuest, LLC · Healthcare | 2 | 23 May 2026 – 16 Jul 2026 | Data breach (cause not stated)Hacking / intrusion | HHS, HIBP |
| CarMax · Retail | 2 | 2 May 2025 – 24 Jan 2026 | Data breach (cause not stated)Hacking / intrusion | HIBP, VCDB |
| Park Dental Partners, Inc. · Healthcare | 2 | 28 Aug 2026 – 7 Oct 2026 | Hacking / intrusion | SEC 8-K |
| WindRose Health Network · Healthcare | 2 | 27 Jan 2026 – 16 Sept 2026 | Hacking / intrusion | HHS |
| AdaptHealth, LLC · Healthcare | 2 | 27 Jun 2026 – 14 Aug 2026 | Hacking / intrusion | HHS, SEC 8-K |
| CareCloud, Inc. · Healthcare | 2 | 24 Mar 2026 – 24 Jul 2026 | Hacking / intrusion | HHS, SEC 8-K |
| Clinical Registry Solutions · Healthcare | 2 | 9 Apr 2026 – 12 Jun 2026 | Hacking / intrusion | HHS, VCDB |
| Open Arms Care Corporation · Healthcare | 2 | 1 Jun 2025 – 11 Jun 2026 | Hacking / intrusion | HHS, VCDB |
| Gastro Health · Healthcare | 2 | 22 May 2026 – 22 May 2026 | Hacking / intrusion | HHS |
6All incidents
11,849 incidents, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2017-08-01 | Hanatour | Malware | Administrative | KR | 1.0M records | VCDB |
| 2017-08-01 | Linn County Board of Supervisors | Error / misconfiguration | Public Administration | IA, US | 216k records | VCDB |
| 2017-08-01 | Mart Moble Stations | Theft or loss | Retail | US | — | VCDB |
| 2017-08-01 | Mt. Sinai Medical Center, | Theft or loss | Healthcare | FL, US | 7 records | VCDB |
| 2017-08-01 | Narmada Hospital | Insider misuse | Healthcare | IN | — | VCDB |
| 2017-08-01 | North Island medical clinic | Error / misconfiguration | Healthcare | NZ | 1,000 records | VCDB |
| 2017-08-01 | Par Pharmaceutical | Insider misuse | Healthcare | NJ, US | — | VCDB |
| 2017-08-01 | Penn Medicine | Theft or loss | Healthcare | PA, US | 48 records | VCDB |
| 2017-08-01 | Queen Elizabeth Hospital | Insider misuse | Healthcare | GB | — | VCDB |
| 2017-08-01 | Seminole County Public Schools | Error / misconfiguration | Education | FL, US | 4,100 records | VCDB |
| 2017-08-01 | St. Mark’s Surgery Center, LLC | Ransomware | Healthcare | US | 34k records | VCDB |
| 2017-08-01 | Taringa | Hacking / intrusion | Information | AR | 28.0M records | VCDB |
| 2017-08-01 | Taringa taringa.net | Data breach (cause not stated) | — | — | 28.0M accounts | HIBP |
| 2017-07-31 | Advanced Spine & Pain Center | Hacking / intrusion | Healthcare | TX, US | 8,352 records | VCDB |
| 2017-07-29 | Equifax | Hacking / intrusion | Administrative | GA, US | 146.7M records | VCDB |
| 2017-07-28 | St Helens and Knowsley Teaching Hospitals NHS Trust | Hacking / intrusion | Healthcare | GB | 500 records | VCDB |
| 2017-07-27 | MALL.cz mall.cz | Data breach (cause not stated) | — | — | 735k accounts | HIBP |
| 2017-07-27 | McDonald's | Theft or loss | Accommodation & Food | NY, US | — | VCDB |
| 2017-07-27 | Mr. Parker | Malware | Other Services | Unknown | — | VCDB |
| 2017-07-27 | Rivermend Health | Hacking / intrusion | Healthcare | Georgia, US | 1,300 records | VCDB |
| 2017-07-26 | TSB Bank | Theft or loss | Finance & Insurance | GB-MDB, GB | — | VCDB |
| 2017-07-25 | Briggs Stratton Corporation | Hacking / intrusion | Manufacturing | WI, US | 13k records | VCDB |
| 2017-07-25 | Florida Healthy Kids Corporation | Hacking / intrusion | Finance & Insurance | FL, US | 2,000 records | VCDB |
| 2017-07-24 | Tuskegee Univerisity | Hacking / intrusion | Education | AL, US | — | VCDB |
| 2017-07-23 | Natwest Bank | Theft or loss | Finance & Insurance | GB | — | VCDB |
| 2017-07-21 | Medical College of Wisconsin | Phishing / social engineering | Education | WI, US | 9,500 records | VCDB |
| 2017-07-18 | Veterans Health Administration | Theft or loss | Public Administration | WA, US | 1,915 records | VCDB |
| 2017-07-15 | City National Bank | Theft or loss | Finance & Insurance | FL, US | — | VCDB |
| 2017-07-13 | BP Gas Station | Theft or loss | Retail | MI, US | — | VCDB |
| 2017-07-13 | Texas Physician House Calls | Error / misconfiguration | Healthcare | TX, US | 5,000 records | VCDB |
| 2017-07-11 | Missouri Managed Care Healthcare | Error / misconfiguration | Finance & Insurance | Missouri , US | 1,223 records | VCDB |
| 2017-07-08 | Redwood Origins Ltd. | Error / misconfiguration | Professional Services | GB | — | VCDB |
| 2017-07-08 | Wells Fargo Bank | Error / misconfiguration | Finance & Insurance | NY, US | 50k records | VCDB |
| 2017-07-05 | Caro Community Hospital | Ransomware | Healthcare | US | — | VCDB |
| 2017-07-04 | Avanti Markets | Malware | Professional Services | WA, US | — | VCDB |
| 2017-07-03 | United States Central Intelligence Agency | Insider misuse | Public Administration | VA, US | 8,761 records | VCDB |
| 2017-07-02 | NHS hospital | Error / misconfiguration | Healthcare | GB | 31 records | VCDB |
| 2017-07-01 | Aetna | Error / misconfiguration | Finance & Insurance | CT, US | 12k records | VCDB |
| 2017-07-01 | Anesthesia Consultants of Fresno | Theft or loss | Healthcare | CA, US | 40 records | VCDB |
| 2017-07-01 | Bank of Saga | Insider misuse | Finance & Insurance | JP | 139 records | VCDB |
| 2017-07-01 | Blue Cross Blue Shield of Tenessee | Error / misconfiguration | Finance & Insurance | TN, US | 2,100 records | VCDB |
| 2017-07-01 | City of Seattle | Error / misconfiguration | Public Administration | US | — | VCDB |
| 2017-07-01 | Daviess County Public Library i | Ransomware | Information | KY, US | — | VCDB |
| 2017-07-01 | Firstrust Bank | Theft or loss | Finance & Insurance | PA, US | — | VCDB |
| 2017-07-01 | Lowe's | Insider misuse | Retail | PA, US | 46 records | VCDB |
| 2017-07-01 | MedRecords Distribution Association | Error / misconfiguration | Information | CA | 1 records | VCDB |
| 2017-07-01 | Nashville Metro Public Health Dept | Error / misconfiguration | Public Administration | TN, US | — | VCDB |
| 2017-07-01 | Nuance | Ransomware | Professional Services | US | — | VCDB |
| 2017-07-01 | Queen Elizabeth Hospital | Insider misuse | Healthcare | CA | 3 records | VCDB |
| 2017-07-01 | Ridgeview Medical Center | Error / misconfiguration | Healthcare | Minnesota, 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 2026-10-17 09:30 UTC.