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
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion797
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion797
- Data breach (cause not stated)151
- Unauthorised access or disclosure62
- 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 | 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 | |||||
| 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
3,218 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2011-01-13 | Saint Francis, Inc. | Theft or loss | Healthcare | OK, US | 84k records | VCDB |
| 2011-01-12 | Green River District Health Department | Hacking / intrusion | Healthcare | KY, US | 19k records | VCDB |
| 2011-01-07 | Cancer Care Northwest P.S. | Error / misconfiguration | Healthcare | WA, US | 3,100 records | VCDB |
| 2011-01-04 | Gary C. Spinks, DMD, PC | Hacking / intrusion | Healthcare | MD, US | 1,000 records | VCDB |
| 2011-01-04 | Pinnacle Health System | Hacking / intrusion | Healthcare | PA, US | 1,085 records | VCDB |
| 2011-01-04 | Riverside Mercy Hospital and Ohio/Mercy Diagnostics | Error / misconfiguration | Healthcare | OH, US | 1,000 records | VCDB |
| 2011-01-01 | Adventist Health System/Florida Hospital Celebration | Insider misuse | Healthcare | FL, US | 760k records | VCDB |
| 2011-01-01 | Aiken Community Based Outpatient Clinic | Error / misconfiguration | Healthcare | SC, US | 2,717 records | VCDB |
| 2011-01-01 | Alberta Health Services Central Alberta Pain & Rehabilitation Institute (CAPRI) | Theft or loss | Healthcare | CA | — | VCDB |
| 2011-01-01 | Bonney Lake Medical Center | Theft or loss | Healthcare | WA, US | 2,367 records | VCDB |
| 2011-01-01 | Dallas Fire-Rescue Emergency Medical Services | Theft or loss | Healthcare | TX, US | 1,000 records | VCDB |
| 2011-01-01 | Dr. Jeffry Barnes | Error / misconfiguration | Healthcare | FL, US | 60 records | VCDB |
| 2011-01-01 | Dr. R. Burnham and Associates Medical Clinic | Theft or loss | Healthcare | AL, CA | — | VCDB |
| 2011-01-01 | East Kent Hospital Trust | Insider misuse | Healthcare | GB | — | VCDB |
| 2011-01-01 | Guthrie Clinic | Insider misuse | Healthcare | NY, US | 1 records | VCDB |
| 2011-01-01 | Henry Ford West Bloomfield Hospital | Insider misuse | Healthcare | MI, US | 305 records | VCDB |
| 2011-01-01 | Indiana University Health Goshen Hospital | Malware | Healthcare | IN, US | 13k records | VCDB |
| 2011-01-01 | Jackson Health System | Insider misuse | Healthcare | FL, US | 24k records | VCDB |
| 2011-01-01 | Lahey Hospital & Medical Center | Theft or loss | Healthcare | MA, US | 599 records | VCDB |
| 2011-01-01 | Massachusetts eHealth Collaborative | Theft or loss | Healthcare | MA, US | 14k records | VCDB |
| 2011-01-01 | Medway Maritime Hospital | Theft or loss | Healthcare | GB | — | VCDB |
| 2011-01-01 | Medway Maritime Hospital | Phishing / social engineering | Healthcare | GB | — | VCDB |
| 2011-01-01 | Medway Maritime Hospital | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2011-01-01 | Medway Maritime Hospital | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2011-01-01 | Medway Maritime Hospital | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2011-01-01 | Medway Maritime Hospital | Insider misuse | Healthcare | GB | — | VCDB |
| 2011-01-01 | Medway Maritime Hospital | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2011-01-01 | Memphis Neurology | Insider misuse | Healthcare | TN, US | 146 records | VCDB |
| 2011-01-01 | NHS Central London | Theft or loss | Healthcare | GB | — | VCDB |
| 2011-01-01 | NHS Trusts | Error / misconfiguration | Healthcare | GB | 780k records | VCDB |
| 2011-01-01 | NYU Langone Medical Center | Error / misconfiguration | Healthcare | NY, US | 2,600 records | VCDB |
| 2011-01-01 | New York City Health and Hospital Corporation | Theft or loss | Healthcare | NY, US | 1.7M records | VCDB |
| 2011-01-01 | Parkland Memorial Hospital | Insider misuse | Healthcare | TX, US | 3,000 records | VCDB |
| 2011-01-01 | Ruijin Hospital | Insider misuse | Healthcare | CN | — | VCDB |
| 2011-01-01 | Southwest Ambulance | Insider misuse | Healthcare | AZ, US | 581 records | VCDB |
| 2011-01-01 | Stanford Hospital & Clinics | Error / misconfiguration | Healthcare | CA, US | 20k records | VCDB |
| 2011-01-01 | Stockport Primary Case Trust | Error / misconfiguration | Healthcare | GB | 1,000 records | VCDB |
| 2011-01-01 | Tift Regional Medical Center | Insider misuse | Healthcare | GA, US | 1,100 records | VCDB |
| 2011-01-01 | Titus Regional Medical Center | Insider misuse | Healthcare | TX, US | 108 records | VCDB |
| 2011-01-01 | Torrance Memorial Medical Center | Insider misuse | Healthcare | CA, US | 1 records | VCDB |
| 2011-01-01 | University Medical Center | Insider misuse | Healthcare | AZ, US | 1 records | VCDB |
| 2011-01-01 | Unknown | Phishing / social engineering | Healthcare | FL, US | 1,000 records | VCDB |
| 2011-01-01 | Unnamed organisation | Insider misuse | Healthcare | CN | — | VCDB |
| 2011-01-01 | Woman to Woman Healthcare, | Insider misuse | Healthcare | IL, US | 26 records | VCDB |
| 2011-01-01 | Women & Infants Hospital of Rhode Island | Error / misconfiguration | Healthcare | RI, US | 14k records | VCDB |
| 2011-01-01 | hasta Regional Medical Center | Insider misuse | Healthcare | CA, US | 1 records | VCDB |
| 2010-12-28 | Lake Woods Nursing and Rehabilitation Center | Theft or loss | Healthcare | MI, US | 656 records | VCDB |
| 2010-12-23 | New York City Health & Hospitals Corporation's North Bronx Healthcare Network | Theft or loss | Healthcare | NY, US | 1.7M records | VCDB |
| 2010-12-23 | Texas Health Arlington Memorial Hospital | Error / misconfiguration | Healthcare | TX, US | 654 records | VCDB |
| 2010-12-22 | Cook County Health & Hospitals System | Theft or loss | Healthcare | IL, US | 556 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 18:39 UTC.