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
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion796
- Data breach (cause not stated)151
- Unauthorised access or disclosure61
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion77%
- Data breach (cause not stated)15%
- Unauthorised access or disclosure6%
- Ransomware1%
- Infostealer logs0%
- Credential compilation (no single victim)0%
- 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 |
|---|---|---|---|---|---|---|
| 2013-12-23 | Covenant Health | Theft or loss | Healthcare | AB, CA | 41 records | VCDB |
| 2013-12-23 | Inspira Health Network, Inc. | Theft or loss | Healthcare | NJ, US | 1,411 records | VCDB |
| 2013-12-23 | Jeff Spiegel | Insider misuse | Healthcare | MA, US | 832 records | VCDB |
| 2013-12-23 | Tranquility Counseling Services | Unknown | Healthcare | NC, US | 1,683 records | VCDB |
| 2013-12-22 | ST. VINCENT HOSPITAL AND HEALTH CARE CENTER, INC. | Theft or loss | Healthcare | IN, US | 1,100 records | VCDB |
| 2013-12-18 | Barnabas Health Medical Group's Pediatric Specialty Center | Theft or loss | Healthcare | NJ, US | 1,100 records | VCDB |
| 2013-12-17 | Shiloh Medical Clinic | Insider misuse | Healthcare | MT, US | 1,900 records | VCDB |
| 2013-12-16 | Dr. Rob Meaglia | Theft or loss | Healthcare | CA, US | 1,400 records | VCDB |
| 2013-12-16 | St. Joseph Health System | Hacking / intrusion | Healthcare | TX, US | 405k records | VCDB |
| 2013-12-11 | Mosaic | Malware | Healthcare | NE, US | 3,857 records | VCDB |
| 2013-12-10 | Health Help, Inc. | Theft or loss | Healthcare | KY, US | 535 records | VCDB |
| 2013-12-06 | Associated Urologists of North Carolina | Theft or loss | Healthcare | NC, US | 7,300 records | VCDB |
| 2013-12-05 | Houston Methodist Hospital | Theft or loss | Healthcare | TX, US | 1,300 records | VCDB |
| 2013-12-05 | Southwest General Health Center | Error / misconfiguration | Healthcare | OH, US | 480 records | VCDB |
| 2013-12-05 | Susquehanna Health | Error / misconfiguration | Healthcare | PA, US | 657 records | VCDB |
| 2013-12-02 | The Brooklyn Hospital Center | Theft or loss | Healthcare | NY, US | 2,172 records | VCDB |
| 2013-12-02 | University of Texas MD Anderson Cancer Center | Error / misconfiguration | Healthcare | TX, US | 3,598 records | VCDB |
| 2013-12-01 | Fresenius Medical Care of North America | Error / misconfiguration | Healthcare | MD, US | — | VCDB |
| 2013-12-01 | Saint Francis Hospital and Medical Center | Theft or loss | Healthcare | CT, US | 858 records | VCDB |
| 2013-11-26 | Geisinger-Bloomsburg Hospital | Error / misconfiguration | Healthcare | PA, US | — | VCDB |
| 2013-11-26 | Jones Chiropractic and Maximum Health | Theft or loss | Healthcare | IN, US | 1,500 records | VCDB |
| 2013-11-23 | 101 Family Medical Group | Theft or loss | Healthcare | CA, US | 2,500 records | VCDB |
| 2013-11-22 | Dr. Ronald Schubert | Theft or loss | Healthcare | WA, US | 900 records | VCDB |
| 2013-11-20 | Redwood Memorial Hospital | Error / misconfiguration | Healthcare | CA, US | 1,039 records | VCDB |
| 2013-11-18 | United Dynacare, LLC dba Dynacare Laboratories | Theft or loss | Healthcare | WI, US | 9,328 records | VCDB |
| 2013-11-13 | NEW MEXICO ONCOLOGY HEMATOLOGY CONSULTANTS, LTD. | Theft or loss | Healthcare | NM, US | 12k records | VCDB |
| 2013-11-13 | New Mexico Oncology Hematology Consultants, Ltd | Theft or loss | Healthcare | NM, US | 12k records | VCDB |
| 2013-11-12 | Cook County Health & Hospitals System | Error / misconfiguration | Healthcare | IL, US | 23k records | VCDB |
| 2013-11-12 | Health Care Organization in Milwaukee | Ransomware | Healthcare | WI, US | — | VCDB |
| 2013-11-12 | Kemmet Dental Design | Theft or loss | Healthcare | ND, US | 2,000 records | VCDB |
| 2013-11-12 | Partners In Nephrology & Endocrinology | Hacking / intrusion | Healthcare | PA, US | 5,000 records | VCDB |
| 2013-11-11 | Interventional Pain Management | Insider misuse | Healthcare | NY, US | 23 records | VCDB |
| 2013-11-05 | Coulee Medical Center | Insider misuse | Healthcare | WA, US | — | VCDB |
| 2013-11-05 | Phoebe Putney Hospital | Theft or loss | Healthcare | GA, US | 6,777 records | VCDB |
| 2013-11-04 | Coulee Medical Center | Insider misuse | Healthcare | WA, US | — | VCDB |
| 2013-11-02 | Colorado Health & Wellness, Inc. | Insider misuse | Healthcare | CO, US | 651 records | VCDB |
| 2013-11-01 | Amberley Park Medical Centre | Theft or loss | Healthcare | AU | 960 records | VCDB |
| 2013-11-01 | Healthsource of Ohio | Error / misconfiguration | Healthcare | OH, US | 8,845 records | VCDB |
| 2013-11-01 | Le Bonheur Children's Hospital | Insider misuse | Healthcare | TN, US | — | VCDB |
| 2013-11-01 | North Bend Medical Center | Phishing / social engineering | Healthcare | OR, US | 2 records | VCDB |
| 2013-10-28 | Comprehensive Psychological Services LLC | Theft or loss | Healthcare | SC, US | 3,500 records | VCDB |
| 2013-10-28 | Greater Dallas Orthopaedics, PLLC | Theft or loss | Healthcare | TX, US | 5,840 records | VCDB |
| 2013-10-25 | St Mary's Medical Management, LLC | Insider misuse | Healthcare | WV, US | 1 records | VCDB |
| 2013-10-20 | Service Coordination Inc. | Hacking / intrusion | Healthcare | MD, US | 9,700 records | VCDB |
| 2013-10-20 | Service Coordination Inc. | Hacking / intrusion | Healthcare | MD, US | 11k records | VCDB |
| 2013-10-16 | Children's Healthcare | Insider misuse | Healthcare | GA, US | — | VCDB |
| 2013-10-16 | Children's Healthcare of Atlanta | Insider misuse | Healthcare | GA, US | — | VCDB |
| 2013-10-13 | South Central Ambulance Service Ltd | Error / misconfiguration | Healthcare | GB | 2,826 records | VCDB |
| 2013-10-12 | AHMC Healthcare Inc. | Theft or loss | Healthcare | CA, US | 700k records | VCDB |
| 2013-10-12 | Northside Hospital, Inc. | Error / misconfiguration | Healthcare | GA, US | 4,879 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 04:44 UTC.