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
2Trends
The last 24 months, dated when the incident happened where the source says, otherwise when it was reported.
- Hacking / intrusion793
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion793
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion793
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- 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 | 681 | 60 | 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
3,212 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2025-06-20 | Retina Associates of Cleveland, Inc. | Hacking / intrusion | Healthcare | OH, US | 3,604 people | HHS |
| 2025-06-19 | Skin Care Specialty Physicians | Hacking / intrusion | Healthcare | MD, US | 1,038 people | HHS |
| 2025-06-18 | Marquette County Medical Care Facility | Hacking / intrusion | Healthcare | OH, US | 1,499 people | HHS |
| 2025-06-17 | Broadwest Specialty Surgical Center | Hacking / intrusion | Healthcare | IN, US | 536 people | HHS |
| 2025-06-17 | Winkler County Hospital District | Unauthorised access or disclosure | Healthcare | TX, US | 637 people | HHS |
| 2025-06-13 | AltaMed Health Services Corporation | Unauthorised access or disclosure | Healthcare | CA, US | 4,530 people | HHS |
| 2025-06-13 | Central Kentucky Radiology | Hacking / intrusion | Healthcare | KY, US | 167k people | HHS |
| 2025-06-13 | Diversified Services Enterprises | Hacking / intrusion | Healthcare | FL, US | 61k people | HHS |
| 2025-06-13 | Mount Rogers Community Services | Hacking / intrusion | Healthcare | VA, US | 38k people | HHS |
| 2025-06-12 | Imperial Beach Community Clinic | Hacking / intrusion | Healthcare | CA, US | 10k people | HHS |
| 2025-06-12 | Kelley Drye & Warren LLP | Hacking / intrusion | Healthcare | NY, US | 771 people | HHS |
| 2025-06-12 | Rural Health Services | Hacking / intrusion | Healthcare | SC, US | 37k people | HHS |
| 2025-06-11 | Clarkston Chiropractic Sports & Wellness | Hacking / intrusion | Healthcare | MI, US | 2,757 people | HHS |
| 2025-06-10 | Repay Management Services, LLC | Hacking / intrusion | Healthcare | GA, US | 606 people | HHS |
| 2025-06-06 | Blue Shield of California | Unauthorised access or disclosure | Healthcare | CA, US | 1,543 people | HHS |
| 2025-06-06 | Centivo Corporation | Unauthorised access or disclosure | Healthcare | GA, US | 630 people | HHS |
| 2025-06-06 | Episource, LLC | Hacking / intrusion | Healthcare | CA, US | 6.7M people | HHS |
| 2025-06-06 | Huron Regional Medical Center, Inc. | Hacking / intrusion | Healthcare | SD, US | 25k people | HHS |
| 2025-06-06 | NYC Health + Hospitals | Hacking / intrusion | Healthcare | NY, US | 5,728 people | HHS |
| 2025-06-06 | Public Health Trust of Miami Dade County DBA Jackson Health System | Unauthorised access or disclosure | Healthcare | FL, US | 2,599 people | HHS |
| 2025-06-01 | Open Arms Care Corporation | Hacking / intrusion | Healthcare | TN, US | — | VCDB |
| 2025-05-30 | Next Step Healthcare LLC | Hacking / intrusion | Healthcare | MA, US | 12k people | HHS |
| 2025-05-30 | Oliver Street Dermatology Management LLC | Hacking / intrusion | Healthcare | TX, US | 14k people | HHS |
| 2025-05-30 | Providia Home Care, LLC dba Preferred Care Home Health Services | Hacking / intrusion | Healthcare | FL, US | 38k people | HHS |
| 2025-05-30 | Upper Dublin Family Dentistry | Hacking / intrusion | Healthcare | PA, US | 5,000 people | HHS |
| 2025-05-29 | Gateway Community Services, Inc. | Hacking / intrusion | Healthcare | FL, US | 34k people | HHS |
| 2025-05-29 | Northwestern Community Services Board | Hacking / intrusion | Healthcare | VA, US | 22k people | HHS |
| 2025-05-28 | Covenant Surgical Partners, Inc. | Hacking / intrusion | Healthcare | TX, US | 89k people | HHS |
| 2025-05-28 | Mary B. Toporcer, MD, P.C. | Hacking / intrusion | Healthcare | PA, US | 501 people | HHS |
| 2025-05-23 | NHPP Physical Medicine and Rehabilitation | Unauthorised access or disclosure | Healthcare | NY, US | 1,353 people | HHS |
| 2025-05-23 | North Shore University Hospital Sleep Disorders Center | Unauthorised access or disclosure | Healthcare | NY, US | 13k people | HHS |
| 2025-05-23 | Sports Physical Therapy, Occupational Therapy and Rehabilitation Services of the North Shore, P.L.L.C | Unauthorised access or disclosure | Healthcare | NY, US | 6,195 people | HHS |
| 2025-05-23 | The Cooper Health System | Hacking / intrusion | Healthcare | NJ, US | 57k people | HHS |
| 2025-05-19 | Community Hospital of Anaconda | Hacking / intrusion | Healthcare | MT, US | 21k people | HHS |
| 2025-05-16 | Compassion Health Care, Inc. | Hacking / intrusion | Healthcare | NC, US | 23k people | HHS |
| 2025-05-16 | Insulet Corporation | Unauthorised access or disclosure | Healthcare | MA, US | 841 people | HHS |
| 2025-05-16 | Mercy Surgical Dressing Group, Inc. | Hacking / intrusion | Healthcare | PA, US | 4,159 people | HHS |
| 2025-05-15 | Anne Arundel County Department of Health | Hacking / intrusion | Healthcare | MD, US | 500 people | HHS |
| 2025-05-15 | CareNexa, LLC, doing business as Molecular Testing Labs | Hacking / intrusion | Healthcare | WA, US | 7,711 people | HHS |
| 2025-05-15 | Hunter Health Clinic | Hacking / intrusion | Healthcare | KS, US | 28k people | HHS |
| 2025-05-15 | Weiser Valley Hospital District dba Weiser Memorial Hospital | Hacking / intrusion | Healthcare | ID, US | 60k people | HHS |
| 2025-05-09 | Blue Cross Blue Shield of Texas | Unauthorised access or disclosure | Healthcare | IL, US | 593 people | HHS |
| 2025-05-08 | Tri-City Cardiology Consultants, P.C. | Hacking / intrusion | Healthcare | AZ, US | 23k people | HHS |
| 2025-05-07 | Allied Services Division Welfare Fund | Hacking / intrusion | Healthcare | IL, US | 5,727 people | HHS |
| 2025-05-06 | The Carpenter Health Network | Hacking / intrusion | Healthcare | LA, US | 878 people | HHS |
| 2025-05-05 | Minnesota Orthodontics and Dentofacial Orthopedics, P.A. | Hacking / intrusion | Healthcare | MN, US | 501 people | HHS |
| 2025-05-03 | CardioVascular Health Clinic | Hacking / intrusion | Healthcare | OK, US | 501 people | HHS |
| 2025-05-03 | Monongalia Health System, Inc. | Unauthorised access or disclosure | Healthcare | WV, US | 4,895 people | HHS |
| 2025-05-02 | Absolute Dental Group, LLC | Hacking / intrusion | Healthcare | NV, US | 1.2M people | HHS |
| 2025-04-30 | Berkeley Research Group, LLC | Hacking / intrusion | Healthcare | CA, US | 500 people | HHS |
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 02:14 UTC.