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
- 616
- last 12 months, every source
- People in US health breaches
- 70.4M
- 475 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 sectorHealthcare752 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 / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- 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 | 684 | 61 | 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
3,216 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2016-07-01 | Unnamed organisation | Hacking / intrusion | Healthcare | US | 9.3M records | VCDB |
| 2016-06-24 | Todays Dental Association | Insider misuse | Healthcare | MD, US | 6 records | VCDB |
| 2016-06-23 | Banner Health | Hacking / intrusion | Healthcare | AZ, US | 3.7M records | VCDB |
| 2016-06-20 | Crozer-Keystone Health System | Error / misconfiguration | Healthcare | PA, US | 900 records | VCDB |
| 2016-06-20 | The Outer Banks Hospital | Error / misconfiguration | Healthcare | SC, US | — | VCDB |
| 2016-06-19 | Professional Dermatology Care | Ransomware | Healthcare | VA, US | 13k records | VCDB |
| 2016-06-15 | Orlando Health | Insider misuse | Healthcare | FL, US | 44 records | VCDB |
| 2016-06-10 | Kaiser Permante | Theft or loss | Healthcare | CA, US | 1,136 records | VCDB |
| 2016-06-09 | Oregon State Hospital | Insider misuse | Healthcare | OR, US | 1 records | VCDB |
| 2016-06-08 | Eastern Health Authority | Theft or loss | Healthcare | CA | 34 records | VCDB |
| 2016-06-01 | Albany Medical Center | Error / misconfiguration | Healthcare | NY, US | 11 records | VCDB |
| 2016-06-01 | Athens Orthopedic Clinic | Hacking / intrusion | Healthcare | GA, US | 397k records | VCDB |
| 2016-06-01 | Glendale Adventist Medical Center | Insider misuse | Healthcare | CA, US | 528 records | VCDB |
| 2016-06-01 | King of Prussia Dental Associates and Pediatric Dentistry of Collegeville | Hacking / intrusion | Healthcare | PA, US | — | VCDB |
| 2016-06-01 | SCAN Health Plan | Hacking / intrusion | Healthcare | CA, US | 87k records | VCDB |
| 2016-06-01 | Social Worker | Theft or loss | Healthcare | GB | 27 records | VCDB |
| 2016-06-01 | St. Mary Center | Insider misuse | Healthcare | PA, US | 1 records | VCDB |
| 2016-06-01 | Yukon Kuskokwim Health Corporation | Insider misuse | Healthcare | AL, US | — | VCDB |
| 2016-05-26 | NHS England | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2016-05-19 | Stephenville Medical & Surgical Clinic | Error / misconfiguration | Healthcare | PA, US | — | VCDB |
| 2016-05-18 | Government of Turkey Health System | Hacking / intrusion | Healthcare | TR | 50.0M records | VCDB |
| 2016-05-16 | Allergy, Asthma & Immunology of the Rockies, P.C. | Ransomware | Healthcare | CO, US | 6,800 records | VCDB |
| 2016-05-16 | Memorial Hermann | Error / misconfiguration | Healthcare | US | 12k records | VCDB |
| 2016-05-15 | St. Charles Health System | Insider misuse | Healthcare | OR, US | 1 records | VCDB |
| 2016-05-13 | Okaloosa County Emergency Medical Services | Insider misuse | Healthcare | FL, US | 41 records | VCDB |
| 2016-05-08 | Singapore Red Cross | Hacking / intrusion | Healthcare | SG | 4,300 records | VCDB |
| 2016-05-04 | Midwest Orthopedics Group | Hacking / intrusion | Healthcare | US | 655k records | VCDB |
| 2016-05-02 | California Health Care Facility | Error / misconfiguration | Healthcare | CA, US | — | VCDB |
| 2016-05-02 | Cardiology Associates, P.C. | Insider misuse | Healthcare | US | 907 records | VCDB |
| 2016-05-02 | Saint Agnes Medical Center | Phishing / social engineering | Healthcare | CA, US | 2,812 records | VCDB |
| 2016-05-01 | Blaine Chiropractic Center | Hacking / intrusion | Healthcare | MN, US | 1,945 records | VCDB |
| 2016-05-01 | Landmark Cancer Center | Ransomware | Healthcare | AR, US | — | VCDB |
| 2016-05-01 | Vascular Surgical Associates | Malware | Healthcare | US | 36k records | VCDB |
| 2016-05-01 | Watsonville Chiropractic Inc./David W. Christie, D.C/ Luque Chiropractice, Inc. | Error / misconfiguration | Healthcare | CA, US | — | VCDB |
| 2016-04-29 | Rhode Island Blood Center | Malware | Healthcare | RI, US | — | VCDB |
| 2016-04-28 | Associates in Eye Care | Theft or loss | Healthcare | VA, US | 971 records | VCDB |
| 2016-04-27 | Verity Health Systems | Phishing / social engineering | Healthcare | CA, US | — | VCDB |
| 2016-04-22 | Social Worker | Error / misconfiguration | Healthcare | GB | — | VCDB |
| 2016-04-15 | Kern County Mental Health | Error / misconfiguration | Healthcare | CA, US | 1 records | VCDB |
| 2016-04-11 | PruittHealth | Theft or loss | Healthcare | SC, US | — | VCDB |
| 2016-04-08 | Premier Family Care I, Inc. | Error / misconfiguration | Healthcare | TX, US | — | VCDB |
| 2016-04-06 | Orleans Medical Clinic | Hacking / intrusion | Healthcare | IN, US | 6,890 records | VCDB |
| 2016-04-01 | Bon Secours Health System | Error / misconfiguration | Healthcare | SC, US | 656k records | VCDB |
| 2016-04-01 | Good Samaritan Hospital | Error / misconfiguration | Healthcare | NY, US | 500k records | VCDB |
| 2016-04-01 | New York State Psychiatric Institute | Hacking / intrusion | Healthcare | NY, US | 22k records | VCDB |
| 2016-04-01 | Planned Parenthood of the Heartland | Error / misconfiguration | Healthcare | IA, US | 2,506 records | VCDB |
| 2016-04-01 | Shepard Center | Phishing / social engineering | Healthcare | GA, US | — | VCDB |
| 2016-03-31 | Alvarado Hospital Medical Center | Ransomware | Healthcare | CA, US | — | VCDB |
| 2016-03-31 | Washington DC Veterans Affairs Medical Center | Error / misconfiguration | Healthcare | DC, US | 1,062 records | VCDB |
| 2016-03-30 | Valley Anesthesiology and Pain Consultants | Hacking / intrusion | Healthcare | AZ, US | 883k 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 2026-10-14 13:38 UTC.