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
2Trends
The last 24 months, dated when the incident happened where the source says, otherwise when it was reported.
- Hacking / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion77%
- Data breach (cause not stated)15%
- Unauthorised access or disclosure6%
- Ransomware1%
- Infostealer logs0%
- Credential compilation (no single victim)0%
- 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 | 684 | 61 | 2 | 4 | 1 | |
| Information | 25 | 3 | ||||
| Manufacturing | 20 | 1 | ||||
| Professional Services | 18 | 1 | ||||
| Retail | 17 | 1 | ||||
| Finance, Insurance & Real Estate | 6 | |||||
| Services | 5 | |||||
| Transportation | 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
3,216 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2013-10-04 | Seton Healthcare | Theft or loss | Healthcare | TX, US | 5,500 records | VCDB |
| 2013-10-03 | Mercy Health Services | Error / misconfiguration | Healthcare | MD, US | 1 records | VCDB |
| 2013-10-01 | Armistead Caregiver Services | Insider misuse | Healthcare | VT, US | — | VCDB |
| 2013-10-01 | Paul G. Klein, DPM | Theft or loss | Healthcare | NJ, US | 2,500 records | VCDB |
| 2013-10-01 | Riverside Health System | Insider misuse | Healthcare | VA, US | 919 records | VCDB |
| 2013-10-01 | Royal Inland Hospital | Error / misconfiguration | Healthcare | GB | 1,628 records | VCDB |
| 2013-10-01 | Unknown | Error / misconfiguration | Healthcare | NZ | 1 records | VCDB |
| 2013-09-26 | Stormont-Vail HealthCare | Error / misconfiguration | Healthcare | KS, US | 1 records | VCDB |
| 2013-09-26 | UHS-Pruitt | Theft or loss | Healthcare | GA, US | 1,300 records | VCDB |
| 2013-09-25 | Eureka Internal Medicine | Error / misconfiguration | Healthcare | CA, US | — | VCDB |
| 2013-09-23 | Care One Senior Care | Insider misuse | Healthcare | NY, US | — | VCDB |
| 2013-09-23 | Stephen T Imrie MD | Theft or loss | Healthcare | CA, US | 8,900 records | VCDB |
| 2013-09-20 | Tri Lakes Medical Center | Hacking / intrusion | Healthcare | MS, US | 1,489 records | VCDB |
| 2013-09-20 | Tri-Lakes Medical Center | Hacking / intrusion | Healthcare | MS, US | 1,489 records | VCDB |
| 2013-09-18 | Allina Health System | Insider misuse | Healthcare | MN, US | 3,800 records | VCDB |
| 2013-09-18 | Boone Hospital Center | Insider misuse | Healthcare | MO, US | 125 records | VCDB |
| 2013-09-18 | Centerville Clinics Inc. | Hacking / intrusion | Healthcare | PA, US | — | VCDB |
| 2013-09-18 | North Country Hospital and Health Center | Theft or loss | Healthcare | VT, US | 550 records | VCDB |
| 2013-09-16 | Dermatology Associates of Tallahassee | Unknown | Healthcare | FL, US | 915 records | VCDB |
| 2013-09-16 | Santa Clara Valley Health and Hospital System | Theft or loss | Healthcare | CA, US | — | VCDB |
| 2013-09-13 | NHC HealthCare, Mauldin | Error / misconfiguration | Healthcare | SC, US | 4,204 records | VCDB |
| 2013-09-09 | University of California San Francisco Medical Center | Theft or loss | Healthcare | CA, US | — | VCDB |
| 2013-09-08 | Hutt Hospital | Theft or loss | Healthcare | NZ | — | VCDB |
| 2013-09-06 | DaVita HealthCare Partners Inc | Theft or loss | Healthcare | US | 12k records | VCDB |
| 2013-09-03 | Abu Dhabi International Montessori Nursery | Hacking / intrusion | Healthcare | AE | — | VCDB |
| 2013-09-03 | Genesis Rehabilitation Service | Error / misconfiguration | Healthcare | US | 33 records | VCDB |
| 2013-09-01 | Alberta Health System | Theft or loss | Healthcare | AB, CA | 620k records | VCDB |
| 2013-09-01 | Back Country Hospital | Theft or loss | Healthcare | VT, US | 3,000 records | VCDB |
| 2013-09-01 | Lima Radiological Associates | Insider misuse | Healthcare | OH, US | 1 records | VCDB |
| 2013-09-01 | National Healthcare Corp - Oak Ridge | Error / misconfiguration | Healthcare | TN, US | 4,268 records | VCDB |
| 2013-09-01 | Scottish Emergency Rider Volunteer Service | Theft or loss | Healthcare | Scotland, GB | — | VCDB |
| 2013-08-28 | St. Mary's Janesville Hospital | Theft or loss | Healthcare | WI, US | 631 records | VCDB |
| 2013-08-27 | Sarah Benjamin, DPM - Littleton Podiatry | Theft or loss | Healthcare | CO, US | 3,512 records | VCDB |
| 2013-08-26 | Sutter Health | Error / misconfiguration | Healthcare | CA, US | — | VCDB |
| 2013-08-24 | Aberdeen Hospital | Insider misuse | Healthcare | NS, CA | 39 records | VCDB |
| 2013-08-24 | Aberdeen Hospital in New Glasgow, N.S | Error / misconfiguration | Healthcare | CA | 39 records | VCDB |
| 2013-08-23 | Access Counseling, LLC | Theft or loss | Healthcare | IN, US | 566 records | VCDB |
| 2013-08-23 | National Maternity Hospital, Holles Street | Insider misuse | Healthcare | IE | 1 records | VCDB |
| 2013-08-22 | Texas Health Presbyterian Dallas Hospital | Theft or loss | Healthcare | TX, US | 949 records | VCDB |
| 2013-08-19 | Hope Community Resources | Error / misconfiguration | Healthcare | AK, US | 3,700 records | VCDB |
| 2013-08-16 | Sault Area Hospital | Error / misconfiguration | Healthcare | CA | 500 records | VCDB |
| 2013-08-11 | Rothman Institute | Theft or loss | Healthcare | PA, US | 2,350 records | VCDB |
| 2013-08-09 | Hospice of the Chesapeake | Insider misuse | Healthcare | MD, US | — | VCDB |
| 2013-08-08 | CaroMont Health | Insider misuse | Healthcare | NC, US | 1,310 records | VCDB |
| 2013-08-08 | Carol L. Patrick, Ph.D. | Theft or loss | Healthcare | OH, US | — | VCDB |
| 2013-08-08 | UNIVERSITY HOSPITALS OF CLEVELAND | Theft or loss | Healthcare | OH, US | 7,100 records | VCDB |
| 2013-08-07 | Schuylkill Health System | Theft or loss | Healthcare | PA, US | 2,810 records | VCDB |
| 2013-08-06 | Mount Sinai Medical Center | Error / misconfiguration | Healthcare | NY, US | — | VCDB |
| 2013-08-03 | Comprehensive Podiatry LLC | Theft or loss | Healthcare | OH, US | 1,360 records | VCDB |
| 2013-08-02 | Vitreo-Retinal Medical Group, Inc. | Theft or loss | Healthcare | CA, US | 1,837 records | 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 2026-10-15 05:35 UTC.