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
- 474 breaches reported to HHS
- Material incidents, US listed firms
- 22
- 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 sectorHealthcare747 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 disclosureDouble CounterData breach (cause not stated) · 4 Oct 2026 · HIBP
2Trends
The last 24 months, dated when the incident happened where the source says, otherwise when it was reported.
- Hacking / intrusion792
- 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 / intrusion792
- 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 / intrusion792
- 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 | 680 | 60 | 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 (29 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 |
| 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 |
| Radiology Associates of Richmond · Healthcare | 2 | 1 Jul 2025 – 21 May 2026 | Hacking / intrusion | HHS |
6All incidents
11,839 incidents, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2026-08-22 | Grafton City Hospital, Inc. | Hacking / intrusion | Healthcare | WV, US | 1,215 people | HHS |
| 2026-08-21 | Allergic Disease Associates, P.C. dba The Asthma Center | Hacking / intrusion | Healthcare | PA, US | 5,321 people | HHS |
| 2026-08-21 | Baraga County Memorial Hospital | Hacking / intrusion | Healthcare | MI, US | 501 people | HHS |
| 2026-08-21 | Hawaii Dental Group, Inc DBA Hawaii Family Dental | Hacking / intrusion | Healthcare | HI, US | 46k people | HHS |
| 2026-08-21 | Kern Psychiatric Health and Wellness Center, Inc | Hacking / intrusion | Healthcare | CA, US | 51k people | HHS |
| 2026-08-21 | McKesson mckesson.com | Data breach (cause not stated) | — | — | 6.4M accounts | HIBP |
| 2026-08-21 | North Dakota Department of Health and Human Services, Developmental Disabilities Section | Hacking / intrusion | Healthcare | ND, US | 1,750 people | HHS |
| 2026-08-21 | Premier Medical Group of the Hudson Valley P.C. | Hacking / intrusion | Healthcare | NY, US | 282k people | HHS |
| 2026-08-20 | Life Bridges, Inc. | Hacking / intrusion | Healthcare | TN, US | 5,194 people | HHS |
| 2026-08-19 | United Language Group, LLC | Hacking / intrusion | Healthcare | KS, US | 4,649 people | HHS |
| 2026-08-17 | Hillcrest Medical Research LLC. | Hacking / intrusion | Healthcare | FL, US | 5,785 people | HHS |
| 2026-08-16 | PSI Premier Specialties, Inc. d/b/a Medical Express PSI | Hacking / intrusion | Healthcare | TX, US | 4,100 people | HHS |
| 2026-08-15 | Oz Hair and Beauty ozhairandbeauty.com | Data breach (cause not stated) | — | — | 2.0M accounts | HIBP |
| 2026-08-14 | AdaptHealth, LLC | Hacking / intrusion | Healthcare | PA, US | 4.1M people | HHS |
| 2026-08-14 | Baylor Genetics | Hacking / intrusion | Healthcare | TX, US | 2.8M people | HHS |
| 2026-08-14 | Gardiner Family Chiropractic, PC | Hacking / intrusion | Healthcare | ME, US | 5,000 people | HHS |
| 2026-08-14 | Integrative Emergency Services, LLC | Hacking / intrusion | Healthcare | TX, US | 2,009 people | HHS |
| 2026-08-14 | Mountain Rheumatology Professional, LLC | Hacking / intrusion | Healthcare | CO, US | 5,378 people | HHS |
| 2026-08-14 | Well Child, Inc. | Hacking / intrusion | Healthcare | TN, US | 500 people | HHS |
| 2026-08-13 | BestCare Treatment Services, Inc. | Unauthorised access or disclosure | Healthcare | IL, US | 4,216 people | HHS |
| 2026-08-13 | Carhartt carhartt.com | Data breach (cause not stated) | — | — | 12.9M accounts | HIBP |
| 2026-08-12 | Oakdale Ear Nose & Throat PA d/b/a Minnesota ENT | Hacking / intrusion | Healthcare | MN, US | 100k people | HHS |
| 2026-08-12 | Sharecare sharecare.com | Data breach (cause not stated) | — | — | 318k accounts | HIBP |
| 2026-08-11 | Community Health Care, Inc. | Hacking / intrusion | Healthcare | OH, US | 808 people | HHS |
| 2026-08-11 | Longview ER Operations, LLC | Hacking / intrusion | Healthcare | TX, US | 501 people | HHS |
| 2026-08-10 | Boston Healthcare for the Homeless Program | Hacking / intrusion | Healthcare | MA, US | 201k people | HHS |
| 2026-08-10 | Westchester Institute for Human Development, Inc. | Hacking / intrusion | Healthcare | NY, US | 938 people | HHS |
| 2026-08-07 | American Addiction Centers | Hacking / intrusion | Healthcare | TN, US | 328k people | HHS |
| 2026-08-07 | Central Arkansas Pediatrics, P.A. | Hacking / intrusion | Healthcare | AR, US | 1,500 people | HHS |
| 2026-08-07 | Deseye, PLLC d/b/a Princeton Family Eye Care | Hacking / intrusion | Healthcare | TX, US | 1,050 people | HHS |
| 2026-08-07 | Horizon Eye Care Laser & Eye Surgery Center | Hacking / intrusion | Healthcare | NJ, US | 501 people | HHS |
| 2026-08-07 | Indico Data Solutions, Inc. | Hacking / intrusion | Healthcare | MA, US | 4,840 people | HHS |
| 2026-08-06 | Fanlore fanlore.org | Data breach (cause not stated) | — | — | 145k accounts | HIBP |
| 2026-08-05 | CyrusOne cyrusone.com | Data breach (cause not stated) | — | — | 373k accounts | HIBP |
| 2026-08-05 | NFI North, Inc. | Hacking / intrusion | Healthcare | NH, US | 50k people | HHS |
| 2026-08-03 | Chess.com (2026) chess.com | Data breach (cause not stated) | — | — | 4.7M accounts | HIBP |
| 2026-08-03 | PAMCAH-UA Local 675 Health and Welfare Fund | Hacking / intrusion | Healthcare | HI, US | 8,319 people | HHS |
| 2026-08-01 | Alcon alcon.com | Data breach (cause not stated) | — | — | 218k accounts | HIBP |
| 2026-08-01 | Questel questel.com | Data breach (cause not stated) | — | — | 1.2M accounts | HIBP |
| 2026-07-31 | A-O-M-S, P.L.L.C. d/b/a Arkansas Oral & Maxillofacial Surgeons | Hacking / intrusion | Healthcare | AR, US | 65k people | HHS |
| 2026-07-31 | Aesto, LLC | Hacking / intrusion | Healthcare | AL, US | 9.5M people | HHS |
| 2026-07-31 | Asheville Beaverdam NC Opco LLC d/b/a Bear Mountain Health and Rehabilitation | Hacking / intrusion | Healthcare | NC, US | 1,397 people | HHS |
| 2026-07-31 | Asheville US Seventy NC Opco LLC d/b/a Swannanoa Valley Health and Rehabilitation | Hacking / intrusion | Healthcare | NC, US | 1,045 people | HHS |
| 2026-07-31 | Asheville Victoria NC Opco LLC d/b/a Elevate Health & Rehabilitation | Hacking / intrusion | Healthcare | NC, US | 1,551 people | HHS |
| 2026-07-31 | Interim HealthCare of Oklahoma City, Inc. | Hacking / intrusion | Healthcare | OK, US | 500 people | HHS |
| 2026-07-31 | Manning Regional Healthcare Center | Hacking / intrusion | Healthcare | IA, US | 746 people | HHS |
| 2026-07-31 | Monongalia County General Hospital Company | Hacking / intrusion | Healthcare | WV, US | 2,173 people | HHS |
| 2026-07-30 | MPS Enterprises, Inc. | Hacking / intrusion | Healthcare | TX, US | 675 people | HHS |
| 2026-07-30 | Pennsylvanie Dermatology Partners | Hacking / intrusion | Healthcare | MD, US | 500 people | HHS |
| 2026-07-29 | AMGEN INC | Hacking / intrusion | Healthcare | CA, US | — | SEC 8-K |
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 15:28 UTC.