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
- 70.5M
- 477 breaches reported to HHS
- Material incidents, US listed firms
- 21
- SEC 8-K Item 1.05, 12 months
- Accounts in new breach records
- 504.9M
- 124 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 sectorHealthcare756 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 / intrusion799
- 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 / intrusion799
- 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 / intrusion799
- 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 | 687 | 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
11,849 incidents, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2017-03-01 | Grayson County Public Schools | Phishing / social engineering | Education | VA, US | — | VCDB |
| 2017-03-01 | House of Charity | Insider misuse | Other Services | MN, US | 300 records | VCDB |
| 2017-03-01 | John Fawkner Private Hospital | Error / misconfiguration | Healthcare | AU | 31 records | VCDB |
| 2017-03-01 | Locklear Dodge | Insider misuse | Retail | AL, US | 267 records | VCDB |
| 2017-03-01 | MyBroadband | Error / misconfiguration | Information | ZA | 30.0M records | VCDB |
| 2017-03-01 | New Zealand Ministry of Health | Error / misconfiguration | Public Administration | NZ | — | VCDB |
| 2017-03-01 | Pembroke House Surgery | Error / misconfiguration | Healthcare | GB | 1,000 records | VCDB |
| 2017-03-01 | Staminus Communications | Hacking / intrusion | Information | CA, US | — | VCDB |
| 2017-03-01 | TCM Bank | Error / misconfiguration | Finance & Insurance | US | — | VCDB |
| 2017-03-01 | Trios Health | Insider misuse | Healthcare | WA, US | 569 records | VCDB |
| 2017-03-01 | Tyler School District | Phishing / social engineering | Education | US | — | VCDB |
| 2017-03-01 | U.S Secret Service | Theft or loss | Public Administration | VA, US | — | VCDB |
| 2017-02-27 | Association of British Travel Agents | Hacking / intrusion | Other Services | GB | 43k records | VCDB |
| 2017-02-27 | Independent Inquiry into Child Sexual Abuse (UK) | Error / misconfiguration | Public Administration | GB | 90 records | VCDB |
| 2017-02-25 | Lifespan Healthcare | Theft or loss | Healthcare | Rhode Island, US | 20k records | VCDB |
| 2017-02-23 | Retina-X retinax.com | Data breach (cause not stated) | — | — | 71k accounts | HIBP |
| 2017-02-22 | Coachella coachella.com | Data breach (cause not stated) | — | — | 600k accounts | HIBP |
| 2017-02-22 | Meridian Health Services | Phishing / social engineering | Healthcare | IN, US | 1,200 records | VCDB |
| 2017-02-21 | International Association of Athletics Federations | Hacking / intrusion | Entertainment | MC | — | VCDB |
| 2017-02-17 | Lexington Medical Center | Hacking / intrusion | Healthcare | SC, US | — | VCDB |
| 2017-02-16 | FreeOnes freeones.com | Data breach (cause not stated) | — | — | 960k accounts | HIBP |
| 2017-02-13 | Southern Illinois Healthcare | Error / misconfiguration | Healthcare | IL, US | — | VCDB |
| 2017-02-12 | Plastic Surgery Associates of South Dakota | Ransomware | Healthcare | SD, US | 10k records | VCDB |
| 2017-02-11 | GTE Financial Credit Union | Theft or loss | Finance & Insurance | FL, US | — | VCDB |
| 2017-02-10 | maple's gas station | Theft or loss | Retail | MS, US | — | VCDB |
| 2017-02-07 | Unnamed gas station | Theft or loss | Retail | Mississippi, US | — | VCDB |
| 2017-02-07 | Western Health Screening | Theft or loss | Healthcare | MT, US | 15k records | VCDB |
| 2017-02-06 | ABCD Pediatrics | Ransomware | Healthcare | TX, US | 55k records | VCDB |
| 2017-02-06 | Sharp Healthcare | Theft or loss | Healthcare | CA, US | 750 records | VCDB |
| 2017-02-03 | College of Southern Idaho | Phishing / social engineering | Education | ID, US | 300 records | VCDB |
| 2017-02-02 | Alton Steel, Inc | Phishing / social engineering | Manufacturing | US | 300 records | VCDB |
| 2017-02-01 | Adventist Health Tehachapi Valley | Phishing / social engineering | Healthcare | US | 253 records | VCDB |
| 2017-02-01 | Apple Yard Flowers | Malware | Retail | GB | — | VCDB |
| 2017-02-01 | Associates in Family Chiropractic and Natural Health Care | Insider misuse | Healthcare | CT, US | — | VCDB |
| 2017-02-01 | Bridgehampton National Bank | Theft or loss | Finance & Insurance | NY, US | — | VCDB |
| 2017-02-01 | Children’s Hospital of Eastern Ontario | Insider misuse | Healthcare | CA | 283 records | VCDB |
| 2017-02-01 | Citizens Memorial Hospital | Phishing / social engineering | Healthcare | MO, US | — | VCDB |
| 2017-02-01 | Corsicana ISD | Phishing / social engineering | Education | TX, US | — | VCDB |
| 2017-02-01 | Elance | Hacking / intrusion | Information | CA, US | 1.3M records | VCDB |
| 2017-02-01 | Kennebec County Sheriff’s Office | Theft or loss | Public Administration | GA, US | 1 records | VCDB |
| 2017-02-01 | Martin Memorial Health Systems | Insider misuse | Healthcare | FL, US | 1 records | VCDB |
| 2017-02-01 | Monroe Shell Station | Theft or loss | Retail | OH, US | — | VCDB |
| 2017-02-01 | Northern Territory Radiation Oncology | Error / misconfiguration | Healthcare | AU | 24 records | VCDB |
| 2017-02-01 | Norwalk Transit | Insider misuse | Transportation | US | — | VCDB |
| 2017-02-01 | Sarnia General Hospital | Error / misconfiguration | Healthcare | CA | — | VCDB |
| 2017-02-01 | Solent NHS Trust | Insider misuse | Healthcare | GB | 2 records | VCDB |
| 2017-02-01 | The Victorian Institute of Teaching | Insider misuse | Public Administration | AU | 1 records | VCDB |
| 2017-02-01 | Unnamed organisation | Insider misuse | Professional Services | NJ, US | 71 records | VCDB |
| 2017-02-01 | Vermont Department of Taxes | Error / misconfiguration | Public Administration | VT, US | — | VCDB |
| 2017-02-01 | Whatta Car Wash | Malware | Other Services | SC, US | — | 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 2026-10-17 12:44 UTC.