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
- 614
- last 12 months, every source
- People in US health breaches
- 70.4M
- 474 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
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion793
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion793
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- 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 | 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 |
|---|---|---|---|---|---|---|
| 2025-11-18 | Capitol Premier Dental Group | Unauthorised access or disclosure | Healthcare | CO, US | 1,559 people | HHS |
| 2025-11-18 | Dermatology Associates of Concord | Hacking / intrusion | Healthcare | MA, US | 501 people | HHS |
| 2025-11-18 | Marrs Ear, Nose & Throat, PA | Unauthorised access or disclosure | Healthcare | FL, US | 6,376 people | HHS |
| 2025-11-17 | Cary Pediatric Center, PA | Hacking / intrusion | Healthcare | NC, US | 26k people | HHS |
| 2025-11-10 | Morton Drug Company | Hacking / intrusion | Healthcare | WI, US | 40k people | HHS |
| 2025-11-07 | Loving and Living Center, PC dba Awakenings Center | Hacking / intrusion | Healthcare | NC, US | 18k people | HHS |
| 2025-11-07 | Marshfield Clinic Health System | Hacking / intrusion | Healthcare | WI, US | 36k people | HHS |
| 2025-11-06 | Archer Health | Hacking / intrusion | Healthcare | CA, US | 4,285 people | HHS |
| 2025-11-06 | The Chase Group Employee Benefit Plan | Hacking / intrusion | Healthcare | NM, US | 817 people | HHS |
| 2025-11-05 | Denton MHMR Center | Hacking / intrusion | Healthcare | TX, US | 109k people | HHS |
| 2025-11-05 | Tampa Bay Treatment Associates | Theft or loss | Healthcare | FL, US | 3,682 people | HHS |
| 2025-10-31 | Beverly Hills Oncology Medical Group | Hacking / intrusion | Healthcare | CA, US | 58k people | HHS |
| 2025-10-31 | Expert MRI | Hacking / intrusion | Healthcare | CA, US | 210k people | HHS |
| 2025-10-31 | Judson Center | Hacking / intrusion | Healthcare | MI, US | 976 people | HHS |
| 2025-10-31 | Tri Century Eye Care PC | Hacking / intrusion | Healthcare | PA, US | 200k people | HHS |
| 2025-10-28 | Better Vision Eyecare, LLC | Unauthorised access or disclosure | Healthcare | AZ, US | 501 people | HHS |
| 2025-10-28 | Northwest Radiologists, Inc./Mount Baker Imaging | Hacking / intrusion | Healthcare | WA, US | 363k people | HHS |
| 2025-10-27 | Health Management Systems of America | Hacking / intrusion | Healthcare | MI, US | 4,213 people | HHS |
| 2025-10-27 | REACH, Inc | Hacking / intrusion | Healthcare | AK, US | 1,195 people | HHS |
| 2025-10-25 | VirMedice, LLC | Hacking / intrusion | Healthcare | AZ, US | 1,000 people | HHS |
| 2025-10-24 | Physicians to Children & Adolescents | Hacking / intrusion | Healthcare | KY, US | 9,536 people | HHS |
| 2025-10-24 | Southwest Urology | Hacking / intrusion | Healthcare | OH, US | 1,310 people | HHS |
| 2025-10-23 | Legacy Health, LLC | Unauthorised access or disclosure | Healthcare | TX, US | 6,547 people | HHS |
| 2025-10-23 | Michael R. Schwartz, MD Inc. | Hacking / intrusion | Healthcare | CA, US | 9,809 people | HHS |
| 2025-10-20 | Express Canna Cards, LLC | Unauthorised access or disclosure | Healthcare | FL, US | 5,000 people | HHS |
| 2025-10-17 | Firetree, Ltd | Hacking / intrusion | Healthcare | PA, US | 18k people | HHS |
| 2025-10-17 | Heartland Health Center | Hacking / intrusion | Healthcare | NE, US | 44k people | HHS |
| 2025-10-17 | Modernizing Medicine, Inc. | Hacking / intrusion | Healthcare | FL, US | 199k people | HHS |
| 2025-10-16 | River City Eye Care, LLC | Hacking / intrusion | Healthcare | OR, US | 6,588 people | HHS |
| 2025-10-15 | Coalesce, LLC dba Benefitelect | Hacking / intrusion | Healthcare | AZ, US | 501 people | HHS |
| 2025-10-13 | Aunt Martha’s Health & Wellness, Inc. | Hacking / intrusion | Healthcare | IL, US | 500 people | HHS |
| 2025-10-10 | Visiting Nurse Association of Texas, LLC | Hacking / intrusion | Healthcare | TX, US | 29k people | HHS |
| 2025-10-09 | Bay Medical LLC | Hacking / intrusion | Healthcare | MD, US | 1,483 people | HHS |
| 2025-10-08 | Conduent Business Services LLC | Hacking / intrusion | Healthcare | NJ, US | 62.2M people | HHS |
| 2025-10-07 | Wellpoint, Inc. | Hacking / intrusion | Healthcare | IN, US | 579 people | HHS |
| 2025-10-06 | Cardiovascular Medicine Associates (doing business as MyCardiologist) | Hacking / intrusion | Healthcare | FL, US | 2,248 people | HHS |
| 2025-10-06 | OB-GYN Associates, Ltd. dba OBGYN Associates | Hacking / intrusion | Healthcare | NV, US | 62k people | HHS |
| 2025-10-06 | Sierra Vista Hospital & Clinics | Hacking / intrusion | Healthcare | NM, US | 75k people | HHS |
| 2025-10-06 | Space Coast Vascular | Hacking / intrusion | Healthcare | FL, US | 19k people | HHS |
| 2025-10-03 | Arizona Health Care Cost Containment System- State Medicaid Agency | Unauthorised access or disclosure | Healthcare | AZ, US | 3,177 people | HHS |
| 2025-10-03 | Brightstar Global Solutions Corporation | Hacking / intrusion | Healthcare | RI, US | 104k people | HHS |
| 2025-10-03 | Harris County Hospital District d/b/a Harris Health | Unauthorised access or disclosure | Healthcare | TX, US | 5,357 people | HHS |
| 2025-10-03 | Southwest C.A.R.E. Center | Hacking / intrusion | Healthcare | NM, US | 22k people | HHS |
| 2025-09-30 | Harbor | Hacking / intrusion | Healthcare | OH, US | 216k people | HHS |
| 2025-09-26 | Emergency Responders Health Center | Hacking / intrusion | Healthcare | ID, US | 1,528 people | HHS |
| 2025-09-25 | Rockhill Women’s Care | Hacking / intrusion | Healthcare | MO, US | 70k people | HHS |
| 2025-09-25 | Susan B. Allen Memorial Hospital | Hacking / intrusion | Healthcare | KS, US | 12k people | HHS |
| 2025-09-25 | Valley Radiology | Hacking / intrusion | Healthcare | CA, US | 1,166 people | HHS |
| 2025-09-23 | Philadelphia Corporation for Aging (PCA) | Hacking / intrusion | Healthcare | PA, US | 410k people | HHS |
| 2025-09-22 | City of St. Joseph, MO Health Department | Hacking / intrusion | Healthcare | MO, US | 12k 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 2026-10-13 23:34 UTC.