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
- 618
- last 12 months, every source
- People in US health breaches
- 70.5M
- 477 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 sectorHealthcare754 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 / intrusion797
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion797
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion797
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- 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 | 685 | 62 | 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
3,218 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2012-12-23 | Richard Switzer MD PC | Error / misconfiguration | Healthcare | MI, US | 4,100 records | VCDB |
| 2012-12-21 | Center for Orthopedic Research and Education, Inc. | Theft or loss | Healthcare | AZ, US | 35k records | VCDB |
| 2012-12-20 | Health Advantage | Unknown | Healthcare | AR, US | 2,863 records | VCDB |
| 2012-12-20 | Samaritan Medical Center | Insider misuse | Healthcare | NY, US | 1 records | VCDB |
| 2012-12-18 | Hebrew Health | Error / misconfiguration | Healthcare | CT, US | — | VCDB |
| 2012-12-18 | Vidant Pungo Hospital | Error / misconfiguration | Healthcare | NC, US | 1,100 records | VCDB |
| 2012-12-03 | Brigham & Women's Hospital | Theft or loss | Healthcare | MA, US | 615 records | VCDB |
| 2012-12-03 | Landmark Medical Center | Theft or loss | Healthcare | RI, US | 683 records | VCDB |
| 2012-12-03 | Pousson Family Dentistry | Theft or loss | Healthcare | LA, US | 1,400 records | VCDB |
| 2012-12-03 | Robbins Eye Center | Theft or loss | Healthcare | CT, US | 1,749 records | VCDB |
| 2012-12-01 | Jackson South Community Hospital | Error / misconfiguration | Healthcare | FL, US | 1 records | VCDB |
| 2012-11-28 | Unknown | Error / misconfiguration | Healthcare | MD, US | 7 records | VCDB |
| 2012-11-28 | Wayne Memorial Hospital | Error / misconfiguration | Healthcare | PA, US | 1,182 records | VCDB |
| 2012-11-27 | Gibson General Hospital | Theft or loss | Healthcare | IN, US | 29k records | VCDB |
| 2012-11-21 | Soundental Associates, PC | Theft or loss | Healthcare | CT, US | 15k records | VCDB |
| 2012-11-21 | University Dental Associates | Error / misconfiguration | Healthcare | NY, US | 2,400 records | VCDB |
| 2012-11-18 | Riderwood Village | Theft or loss | Healthcare | MD, US | 3,230 records | VCDB |
| 2012-11-16 | First Step Counseling, Inc. | Unknown | Healthcare | NJ, US | 638 records | VCDB |
| 2012-11-16 | Lee D Pollan DMD PC | Theft or loss | Healthcare | NY, US | 14k records | VCDB |
| 2012-11-16 | Surgical Associates of Utica, PC | Theft or loss | Healthcare | NY, US | 1,017 records | VCDB |
| 2012-11-15 | Cabinet for Health and Family Services | Phishing / social engineering | Healthcare | KY, US | 2,500 records | VCDB |
| 2012-11-13 | Erickson Living | Theft or loss | Healthcare | NJ, US | — | VCDB |
| 2012-11-06 | Blount Memorial Hospital, Inc | Theft or loss | Healthcare | TN, US | 28k records | VCDB |
| 2012-11-06 | Gulf Coast Health Care Services Inc | Theft or loss | Healthcare | FL, US | 13k records | VCDB |
| 2012-11-06 | Lee D Pollan DMD PC | Theft or loss | Healthcare | NY, US | 19k records | VCDB |
| 2012-11-06 | Office of Dr. Lee D. Pollan, DMD, PC. | Theft or loss | Healthcare | NY, US | 14k records | VCDB |
| 2012-11-05 | Calvin L. Schuster, MD | Theft or loss | Healthcare | CA, US | — | VCDB |
| 2012-11-02 | Glens Falls Hospital | Error / misconfiguration | Healthcare | NY, US | 2,300 records | VCDB |
| 2012-11-01 | Kara Falck, LCSW-C | Error / misconfiguration | Healthcare | MD, US | 7 records | VCDB |
| 2012-11-01 | Mansfield General Hospital | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2012-11-01 | Sentara Norfolk General | Theft or loss | Healthcare | VA, US | 56k records | VCDB |
| 2012-10-29 | Regional Medical Center | Error / misconfiguration | Healthcare | TN, US | 1,200 records | VCDB |
| 2012-10-29 | Regional Medical Center Memphis | Error / misconfiguration | Healthcare | TN, US | 1,200 records | VCDB |
| 2012-10-18 | Brampton Civic Hospital | Phishing / social engineering | Healthcare | CA | 1 records | VCDB |
| 2012-10-18 | Child & Family Psychological Services, Inc. | Hacking / intrusion | Healthcare | MA, US | 7,250 records | VCDB |
| 2012-10-18 | South Shore Medical Center | Hacking / intrusion | Healthcare | MA, US | 16k records | VCDB |
| 2012-10-12 | Columbia University Medical Center | Theft or loss | Healthcare | NY, US | 4,929 records | VCDB |
| 2012-10-12 | Office of the Medicaid Inspector General | Insider misuse | Healthcare | NY, US | 18k records | VCDB |
| 2012-10-11 | American HomePatient Inc. | Theft or loss | Healthcare | TN, US | 1,103 records | VCDB |
| 2012-10-11 | American HomePatient Inc. | Theft or loss | Healthcare | TN, US | 1,103 records | VCDB |
| 2012-10-11 | NYU Langone Medical Center | Error / misconfiguration | Healthcare | NY, US | 453 records | VCDB |
| 2012-10-11 | University of Nevada School of Medicine | Error / misconfiguration | Healthcare | NV, US | 1,483 records | VCDB |
| 2012-10-10 | Sovereign Medical Group, LLC | Hacking / intrusion | Healthcare | NJ, US | 28k records | VCDB |
| 2012-10-07 | Robbins Eye Center | Theft or loss | Healthcare | CT, US | 1,749 records | VCDB |
| 2012-10-05 | University of Virginia Medical Center | Error / misconfiguration | Healthcare | VA, US | 1,800 records | VCDB |
| 2012-10-01 | Akron General Medical Center | Insider misuse | Healthcare | OH622110, US | 1 records | VCDB |
| 2012-10-01 | Bright Horizons Family Solutions Inc | Error / misconfiguration | Healthcare | MA, US | — | VCDB |
| 2012-10-01 | Broward Health & Wellness | Theft or loss | Healthcare | FL, US | 960 records | VCDB |
| 2012-10-01 | Sierra Plastic Surgery | Unknown | Healthcare | NV, US | 800 records | VCDB |
| 2012-10-01 | St. Therese Medical Group | Theft or loss | Healthcare | CA, US | 3,031 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 11:25 UTC.