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 | |||||
| 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
3,216 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2014-09-01 | Spencer Cox Center for Health | Error / misconfiguration | Healthcare | NY, US | 1 records | VCDB |
| 2014-09-01 | St. Luke’s-Roosevelt Hospital Center | Error / misconfiguration | Healthcare | NY, US | — | VCDB |
| 2014-08-29 | AltaMed Health Services Corporation | Theft or loss | Healthcare | CA, US | 3,206 records | VCDB |
| 2014-08-28 | The Longstreet Clinic, P. C. | Error / misconfiguration | Healthcare | GA, US | 720 records | VCDB |
| 2014-08-27 | Health and Human Services Agency | Unknown | Healthcare | CA, US | — | VCDB |
| 2014-08-25 | Dr. Vonica Chau | Theft or loss | Healthcare | TX, US | 810 records | VCDB |
| 2014-08-24 | Mount Sinai Beth Israel | Theft or loss | Healthcare | NY, US | 11k records | VCDB |
| 2014-08-23 | Dr. Vonica Chau | Theft or loss | Healthcare | TX, US | 500 records | VCDB |
| 2014-08-22 | Steven A. Goldman, MD Inc. | Theft or loss | Healthcare | OH, US | 6,141 records | VCDB |
| 2014-08-19 | Dennis Flynn, M.D. | Theft or loss | Healthcare | IL, US | 14k records | VCDB |
| 2014-08-09 | Val Verde Regional Medical Center | Insider misuse | Healthcare | TX, US | 2,000 records | VCDB |
| 2014-08-06 | Albertina Kerr Centers | Theft or loss | Healthcare | OR, US | 1,300 records | VCDB |
| 2014-08-05 | Northeast Rehabilitation Hospital Network | Error / misconfiguration | Healthcare | NH, US | — | VCDB |
| 2014-08-01 | Department of Health and Human Services | Insider misuse | Healthcare | US | 1,720 records | VCDB |
| 2014-08-01 | East Midlands Ambulance Service | Error / misconfiguration | Healthcare | GB | 42k records | VCDB |
| 2014-08-01 | Med Center Health | Insider misuse | Healthcare | KY, US | 160k records | VCDB |
| 2014-08-01 | Reeve-Woods Eye Center | Malware | Healthcare | CA, US | — | VCDB |
| 2014-08-01 | University Health System | Error / misconfiguration | Healthcare | Unknown | 6,073 records | VCDB |
| 2014-08-01 | West Kendall Baptist Hospital | Insider misuse | Healthcare | FL, US | — | VCDB |
| 2014-08-01 | Whitehead Nursing Home | Theft or loss | Healthcare | IE | 75 records | VCDB |
| 2014-07-30 | Compassionate Care Hospice | Theft or loss | Healthcare | LA, US | 707 records | VCDB |
| 2014-07-28 | Oklahoma City Indian Clinic | Error / misconfiguration | Healthcare | OK, US | 6,044 records | VCDB |
| 2014-07-15 | Balfour Hospital | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2014-07-14 | MetroHealth | Malware | Healthcare | OH, US | 981 records | VCDB |
| 2014-07-14 | Santa Fe Family Medical Group | Theft or loss | Healthcare | NM, US | — | VCDB |
| 2014-07-08 | Haley Chiropractic Clinic | Theft or loss | Healthcare | WA, US | 6,000 records | VCDB |
| 2014-07-01 | American Family Care | Theft or loss | Healthcare | US | 2,500 records | VCDB |
| 2014-07-01 | Community Health Systems Inc | Malware | Healthcare | TN, US | 4.5M records | VCDB |
| 2014-07-01 | Cook County Health & Hospitals System | Error / misconfiguration | Healthcare | IL, US | 767 records | VCDB |
| 2014-07-01 | Duke University Health System | Theft or loss | Healthcare | NC, US | — | VCDB |
| 2014-07-01 | Jessie Trice Community Health Center, Inc. | Unknown | Healthcare | FL, US | 7,888 records | VCDB |
| 2014-06-24 | Owensboro Medical Practice | Insider misuse | Healthcare | KY, US | 4,077 records | VCDB |
| 2014-06-24 | Sloane Stecker Physical Therapy, PC | Theft or loss | Healthcare | NY, US | 2,000 records | VCDB |
| 2014-06-24 | Specialty Clinics Of Georgia Orthopaedics | Theft or loss | Healthcare | GA, US | 2,350 records | VCDB |
| 2014-06-22 | Advanced Diagnostic Imaging, P.C. | Theft or loss | Healthcare | TN, US | 705 records | VCDB |
| 2014-06-21 | Popvote - University of Hong Kong | Hacking / intrusion | Healthcare | CN | — | VCDB |
| 2014-06-20 | Abrham Tekola, M.D.,INC | Theft or loss | Healthcare | CA, US | 5,471 records | VCDB |
| 2014-06-13 | Baylor Medical Center at Carrollton | Insider misuse | Healthcare | TX, US | 2,874 records | VCDB |
| 2014-06-09 | Central Utah Clinic | Hacking / intrusion | Healthcare | UT, US | 32k records | VCDB |
| 2014-06-09 | St. Francis Hospital | Malware | Healthcare | GA, US | 1,175 records | VCDB |
| 2014-06-06 | Mark A. Gillispie | Theft or loss | Healthcare | CA, US | 5,845 records | VCDB |
| 2014-06-06 | Portsmouth Naval Medical Center | Insider misuse | Healthcare | VA, US | 2 records | VCDB |
| 2014-06-06 | Rady Children's Hospital | Error / misconfiguration | Healthcare | CA, US | 20k records | VCDB |
| 2014-06-05 | Open Cities Health Center | Malware | Healthcare | MN, US | 1,304 records | VCDB |
| 2014-06-02 | Santa Rosa Memorial Hospital | Theft or loss | Healthcare | CA, US | 34k records | VCDB |
| 2014-06-02 | St. Joseph Health | Theft or loss | Healthcare | CA, US | 34k records | VCDB |
| 2014-06-01 | Cedars-Sinai Medical Center | Theft or loss | Healthcare | CA, US | 33k records | VCDB |
| 2014-06-01 | Children's National Health System | Insider misuse | Healthcare | WA, US | 4,107 records | VCDB |
| 2014-06-01 | Ken-Crest Services | Insider misuse | Healthcare | PA, US | — | VCDB |
| 2014-06-01 | Polk County Health Services, Inc. Crisis Observation Center | Insider misuse | Healthcare | IA, US | 1,071 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 00:56 UTC.