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 |
|---|---|---|---|---|---|---|
| 2012-05-01 | University of Kentucky HealthCare | Theft or loss | Healthcare | KY, US | 4,490 records | VCDB |
| 2012-04-27 | Bruce G. Peller, DMD, PA | Insider misuse | Healthcare | NC, US | 10k records | VCDB |
| 2012-04-24 | Wolf & Yun | Theft or loss | Healthcare | KY, US | 824 records | VCDB |
| 2012-04-23 | TLC DENTAL DANIA, LLC | Theft or loss | Healthcare | FL, US | 750 records | VCDB |
| 2012-04-20 | Oregon State Hospital | Theft or loss | Healthcare | OR, US | 618 records | VCDB |
| 2012-04-19 | Diagnostics For You | Phishing / social engineering | Healthcare | GB | — | VCDB |
| 2012-04-17 | Applegate Valley Family Medicine | Theft or loss | Healthcare | OR, US | 2,300 records | VCDB |
| 2012-04-17 | Baylor Heart and Vascular Center | Theft or loss | Healthcare | TX, US | 1,972 records | VCDB |
| 2012-04-17 | Jeremaih J. Twomey,FACP, PA | Theft or loss | Healthcare | TX, US | 2,559 records | VCDB |
| 2012-04-17 | Robley Rex VA Medical Center | Error / misconfiguration | Healthcare | KY, US | 1,182 records | VCDB |
| 2012-04-17 | St. Joseph's Medical Center | Theft or loss | Healthcare | CA, US | 712 records | VCDB |
| 2012-04-17 | William F. DeLuca Jr., MD | Theft or loss | Healthcare | NY, US | 577 records | VCDB |
| 2012-04-12 | Desert AIDS Project | Theft or loss | Healthcare | CA, US | 4,400 records | VCDB |
| 2012-04-06 | Mid America Health | Theft or loss | Healthcare | IN, US | — | VCDB |
| 2012-04-04 | Lake Granbury Medical Center | Theft or loss | Healthcare | TX, US | 502 records | VCDB |
| 2012-04-01 | AccentCare Home Health of California, Inc. | Error / misconfiguration | Healthcare | CA, US | 1,000 records | VCDB |
| 2012-04-01 | Bon Secours Mary Immaculate Hospital | Insider misuse | Healthcare | VA, US | 5,000 records | VCDB |
| 2012-03-30 | Charlie Norwood VA Medical Center | Theft or loss | Healthcare | GA, US | 824 records | VCDB |
| 2012-03-23 | Chicago Musculoskeletal Institute | Unknown | Healthcare | IL, US | 750 records | VCDB |
| 2012-03-19 | Georgetown University Hospital | Unknown | Healthcare | DC, US | 1,549 records | VCDB |
| 2012-03-19 | Indiana Internal Medicine Consultants | Theft or loss | Healthcare | IN, US | 20k records | VCDB |
| 2012-03-19 | Lakeview Medical Center | Theft or loss | Healthcare | WI, US | 698 records | VCDB |
| 2012-03-19 | Loma Linda University Health Care | Unknown | Healthcare | CA, US | 1,366 records | VCDB |
| 2012-03-19 | Metro Community Provider Network | Hacking / intrusion | Healthcare | CO, US | 3,200 records | VCDB |
| 2012-03-16 | Our Lady of the Lake Regional Medical Center | Theft or loss | Healthcare | LA, US | 17k records | VCDB |
| 2012-03-16 | Our Lady of the Lake Regional Medical Center | Theft or loss | Healthcare | LA, US | 17k records | VCDB |
| 2012-03-08 | Baptist Health System | Error / misconfiguration | Healthcare | AL, US | 1,655 records | VCDB |
| 2012-03-04 | Stephen Haggard, DPM Podiatry | Theft or loss | Healthcare | WA, US | 1,597 records | VCDB |
| 2012-03-01 | James A. Haley Veterans Hospital | Insider misuse | Healthcare | FL, US | 9 records | VCDB |
| 2012-03-01 | Tampa General Hospital | Insider misuse | Healthcare | FL, US | — | VCDB |
| 2012-03-01 | Transitional Development and Training | Insider misuse | Healthcare | CT, US | 150 records | VCDB |
| 2012-02-24 | Flex Physical Therapy | Theft or loss | Healthcare | WA, US | 3,100 records | VCDB |
| 2012-02-24 | Oldendorf Medical Services | Theft or loss | Healthcare | NY, US | 549 records | VCDB |
| 2012-02-24 | PBH | Unknown | Healthcare | NC, US | 50k records | VCDB |
| 2012-02-24 | Triumph LLC | Theft or loss | Healthcare | NC, US | 2,000 records | VCDB |
| 2012-02-22 | La Nueva Casa de Amigos Eye Clinic (University of Houston College of Optometry) | Hacking / intrusion | Healthcare | TX, US | — | VCDB |
| 2012-02-18 | Active Community Team | Theft or loss | Healthcare | GB | — | VCDB |
| 2012-02-10 | Jamaica Hospital Medical Center | Insider misuse | Healthcare | NY, US | — | VCDB |
| 2012-02-09 | Doshi Diagnostic Center | Error / misconfiguration | Healthcare | NY, US | — | VCDB |
| 2012-02-03 | Kansas Department on Aging | Theft or loss | Healthcare | KS, US | 7,757 records | VCDB |
| 2012-02-01 | Emory HealthCare | Error / misconfiguration | Healthcare | GA, US | 315k records | VCDB |
| 2012-02-01 | South Miami Hospital | Phishing / social engineering | Healthcare | FL, US | 834 records | VCDB |
| 2012-01-31 | Aegis Sciences Corporation | Theft or loss | Healthcare | TN, US | 2,184 records | VCDB |
| 2012-01-31 | Concentra Health | Theft or loss | Healthcare | MO, US | 870 records | VCDB |
| 2012-01-31 | Foundation Medical Partners | Unknown | Healthcare | NH, US | 771 records | VCDB |
| 2012-01-31 | Muskogee Regional Medical Center | Error / misconfiguration | Healthcare | OK, US | 844 records | VCDB |
| 2012-01-31 | Robert S. Smith MD Inc. | Theft or loss | Healthcare | GA, US | 17k records | VCDB |
| 2012-01-27 | CenterLight Healthcare | Error / misconfiguration | Healthcare | NY, US | 642 records | VCDB |
| 2012-01-26 | Baylor Health Care System | Theft or loss | Healthcare | TX, US | 1,972 records | VCDB |
| 2012-01-25 | James A. Haley Veterans Hospital | Insider misuse | Healthcare | FL, US | 106 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 13:46 UTC.