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 |
|---|---|---|---|---|---|---|
| 2017-06-01 | Tigers Den Gas Station | Theft or loss | Retail | PA, US | — | VCDB |
| 2017-06-01 | Unknown | Ransomware | Manufacturing | Unknown | — | VCDB |
| 2017-06-01 | Unnamed organisation | Error / misconfiguration | Public Administration | US | 10.0M records | VCDB |
| 2017-06-01 | Verelox | Insider misuse | Information | NL | — | VCDB |
| 2017-05-31 | Clarkson PLC | Ransomware | Transportation | AU | — | VCDB |
| 2017-05-24 | Kaleida Health | Phishing / social engineering | Healthcare | New York, US | 2,800 records | VCDB |
| 2017-05-22 | University of Vermont Medical Center | Hacking / intrusion | Healthcare | VT, US | 2,300 records | VCDB |
| 2017-05-20 | Vision Care Specialists | Theft or loss | Healthcare | CO, US | 703 records | VCDB |
| 2017-05-19 | Blackburn High School | Hacking / intrusion | Education | AU | — | VCDB |
| 2017-05-19 | Singapore Taekwondo Federation | Error / misconfiguration | Education | SG | 782 records | VCDB |
| 2017-05-19 | SwiftQueue | Hacking / intrusion | Professional Services | US | 1.2M records | VCDB |
| 2017-05-18 | Zomato | Hacking / intrusion | Information | IN | 17.0M records | VCDB |
| 2017-05-17 | Zomato zomato.com | Data breach (cause not stated) | — | — | 16.5M accounts | HIBP |
| 2017-05-16 | DaFont dafont.com | Data breach (cause not stated) | — | — | 637k accounts | HIBP |
| 2017-05-15 | Bell (2017 breach) bell.ca | Data breach (cause not stated) | — | — | 2.2M accounts | HIBP |
| 2017-05-15 | UC Davis Health | Hacking / intrusion | Healthcare | CA, US | — | VCDB |
| 2017-05-15 | Utah Department of Family and Child Services | Hacking / intrusion | Healthcare | Utah, US | 16 records | VCDB |
| 2017-05-12 | Little River Healthcare | Theft or loss | Healthcare | US | 18 records | VCDB |
| 2017-05-11 | Edmodo edmodo.com | Data breach (cause not stated) | — | — | 43.4M accounts | HIBP |
| 2017-05-11 | Reincubate reincubate.com | Data breach (cause not stated) | — | — | 616k accounts | HIBP |
| 2017-05-08 | Partners HealthCare | Malware | Healthcare | MA, US | 26k records | VCDB |
| 2017-05-05 | Bank of Little Rock | Insider misuse | Finance & Insurance | AK, US | — | VCDB |
| 2017-05-04 | Ge.tt ge.tt | Data breach (cause not stated) | — | — | 2.5M accounts | HIBP |
| 2017-05-03 | Cape Breton school | Hacking / intrusion | Education | CA | — | VCDB |
| 2017-05-03 | Community Link, Inc. | Hacking / intrusion | Healthcare | WI, US | 5,525 records | VCDB |
| 2017-05-03 | Molina Healthcare | Error / misconfiguration | Healthcare | CA, US | — | VCDB |
| 2017-05-01 | Adrian College | Hacking / intrusion | Education | US-MI, US | — | VCDB |
| 2017-05-01 | Advanced ENT Head & Neck Surgery | Insider misuse | Healthcare | CA, US | — | VCDB |
| 2017-05-01 | BJC HealthCare | Error / misconfiguration | Healthcare | MO, US | 33k records | VCDB |
| 2017-05-01 | Baptist South Medical Center | Error / misconfiguration | Healthcare | FL, US | 531 records | VCDB |
| 2017-05-01 | Bell Canada | Hacking / intrusion | Information | CA | 1.9M records | VCDB |
| 2017-05-01 | Broward Health Medical Center | Insider misuse | Healthcare | FL, US | 126 records | VCDB |
| 2017-05-01 | Camberwell High School | Hacking / intrusion | Education | FL, US | — | VCDB |
| 2017-05-01 | Children and Youth Services | Error / misconfiguration | Public Administration | Unknown | — | VCDB |
| 2017-05-01 | Clark County District Court | Insider misuse | Public Administration | Nevada, US | 380 records | VCDB |
| 2017-05-01 | DOW Jones | Error / misconfiguration | Finance & Insurance | NY, US | 2.2M records | VCDB |
| 2017-05-01 | Edmodo | Hacking / intrusion | Information | CA, US | 77.0M records | VCDB |
| 2017-05-01 | Florida Department of Agriculture and Consumer Services | Hacking / intrusion | Public Administration | Florida, US | 16k records | VCDB |
| 2017-05-01 | Henry Ford Health System | Theft or loss | Healthcare | MI, US | 596 records | VCDB |
| 2017-05-01 | Niskayuna, New York School District | Theft or loss | Education | VA, US | 945 records | VCDB |
| 2017-05-01 | PVHS-ICM Employee Health and Wellness, LLC | Hacking / intrusion | Healthcare | OH, US | — | VCDB |
| 2017-05-01 | Plymouth Hospitals NHS Trust | Ransomware | Healthcare | GB | — | VCDB |
| 2017-05-01 | Tampa Bay Surgery Center | Unknown | Healthcare | FL, US | 26k records | VCDB |
| 2017-04-25 | Underworld Empire underworldempireforums.com | Data breach (cause not stated) | — | — | 429k accounts | HIBP |
| 2017-04-24 | Family Tree Health Clinic | Ransomware | Healthcare | US | — | VCDB |
| 2017-04-20 | Cleveland Medical Associates | Ransomware | Healthcare | TN, US | — | VCDB |
| 2017-04-20 | Cleveland Medical Associates | Ransomware | Healthcare | OH, US | 22k records | VCDB |
| 2017-04-18 | Airway Oxygen, Inc | Ransomware | — | MI, US | — | VCDB |
| 2017-04-17 | Torrance Memorial Medical Center | Hacking / intrusion | Healthcare | CA, US | — | VCDB |
| 2017-04-15 | schoolzilla | Error / misconfiguration | Information | CA, US | 1.3M 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 2026-10-17 11:21 UTC.