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
- 70.4M
- 474 breaches reported to HHS
- Material incidents, US listed firms
- 22
- SEC 8-K Item 1.05, 12 months
- Accounts in new breach records
- 521.9M
- 125 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 sectorHealthcare747 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 disclosureDouble CounterData breach (cause not stated) · 4 Oct 2026 · HIBP
2Trends
The last 24 months, dated when the incident happened where the source says, otherwise when it was reported.
- Hacking / intrusion792
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion792
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- Ransomware9
- Credential compilation (no single victim)5
- Infostealer logs5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion792
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- 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 | 680 | 60 | 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 (29 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 |
| 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 |
| Radiology Associates of Richmond · Healthcare | 2 | 1 Jul 2025 – 21 May 2026 | Hacking / intrusion | HHS |
6All incidents
209 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2013-01-01 | petfinder.com | Error / misconfiguration | Other Services | US | — | VCDB |
| 2012-12-01 | NECA/IBEW Family Medical Care Plan | Error / misconfiguration | Other Services | MD, US | — | VCDB |
| 2012-10-30 | LexisNexis | Error / misconfiguration | Other Services | GA, US | — | VCDB |
| 2012-10-14 | Workers United | Theft or loss | Other Services | NY, US | — | VCDB |
| 2012-08-01 | Sheet Metal Local 36 | Unknown | Other Services | MO, US | 4,560 records | VCDB |
| 2012-07-27 | River Arch Dental | Unknown | Other Services | CA, US | 2,533 records | VCDB |
| 2012-07-26 | Bill & Melinda Gates Foundation | Error / misconfiguration | Other Services | WA, US | — | VCDB |
| 2012-07-25 | Wounded Warrior Project | Theft or loss | Other Services | FL, US | — | VCDB |
| 2012-07-17 | Health Care for All | Theft or loss | Other Services | MA, US | — | VCDB |
| 2012-07-01 | Association of American Medical Colleges | Hacking / intrusion | Other Services | DC, US | — | VCDB |
| 2012-07-01 | LexisNexis | Insider misuse | Other Services | FL, US | 20k records | VCDB |
| 2012-06-01 | Ginbot 7 | Malware | Other Services | VA, US | — | VCDB |
| 2012-05-01 | Bureau of Automotive Repair (BAR) | Hacking / intrusion | Other Services | CA, US | — | VCDB |
| 2012-04-27 | International Police Association - International Administration Center | Hacking / intrusion | Other Services | GB | — | VCDB |
| 2012-04-23 | American Pharmacists Association | Hacking / intrusion | Other Services | DC, US | 81 records | VCDB |
| 2012-03-08 | British Pregnancy Advisory Service | Hacking / intrusion | Other Services | GB | 9,000 records | VCDB |
| 2012-03-08 | British Pregnancy Advisory Service | Hacking / intrusion | Other Services | GB | 9,900 records | VCDB |
| 2012-03-01 | North Atlantic Treaty Organization | Phishing / social engineering | Other Services | BE | — | VCDB |
| 2012-02-24 | Ontario Association of Chiefs of Police | Hacking / intrusion | Other Services | CA | 8 records | VCDB |
| 2012-02-08 | Jose Munoz | Hacking / intrusion | Other Services | NY, US | 6 records | VCDB |
| 2012-01-15 | Owner-Operator Independent Drivers Association | Hacking / intrusion | Other Services | MO, US | — | VCDB |
| 2012-01-01 | Action For Children | Insider misuse | Other Services | GB | 45 records | VCDB |
| 2012-01-01 | Children's Services Council of Palm Beach County | Error / misconfiguration | Other Services | FL, US | — | VCDB |
| 2012-01-01 | Fairbridge | Error / misconfiguration | Other Services | GB | 325 records | VCDB |
| 2012-01-01 | Fairbridge | Error / misconfiguration | Other Services | GB | 16 records | VCDB |
| 2012-01-01 | International Police Association of Australia | Hacking / intrusion | Other Services | AU | — | VCDB |
| 2012-01-01 | Islamic Network | Hacking / intrusion | Other Services | GB | 17k records | VCDB |
| 2012-01-01 | Le Muse Societ Cooperativa | Hacking / intrusion | Other Services | IT | 109 records | VCDB |
| 2012-01-01 | Long Islands Head Injury Association | Insider misuse | Other Services | NY, US | 56 records | VCDB |
| 2012-01-01 | Masons of California | Hacking / intrusion | Other Services | CA, US | 4,056 records | VCDB |
| 2012-01-01 | Mission Linen Supply Company | Hacking / intrusion | Other Services | CA, US | — | VCDB |
| 2012-01-01 | National Democratic Party (NPD) | Hacking / intrusion | Other Services | DE | — | VCDB |
| 2012-01-01 | National Endowment for the Arts | Hacking / intrusion | Other Services | DC, US | 13 records | VCDB |
| 2012-01-01 | Nefesh Bnefesh | Hacking / intrusion | Other Services | IL | 594 records | VCDB |
| 2012-01-01 | New York State Association of Chiefs of Police | Hacking / intrusion | Other Services | NY, US | 300 records | VCDB |
| 2012-01-01 | University of Michigan Health System | Theft or loss | Other Services | MI, US | 69k records | VCDB |
| 2012-01-01 | Unknown | Error / misconfiguration | Other Services | PA, US | — | VCDB |
| 2012-01-01 | Vote Sex! | Hacking / intrusion | Other Services | IL, US | 36k records | VCDB |
| 2012-01-01 | West Virginia Chiefs of Police Association | Hacking / intrusion | Other Services | WV, US | 150 records | VCDB |
| 2012-01-01 | Westboro Baptist Church | Hacking / intrusion | Other Services | MA, US | — | VCDB |
| 2012-01-01 | nychiefs.org | Hacking / intrusion | Other Services | NY, US | — | VCDB |
| 2011-12-08 | Sutter Medical Foundation | Theft or loss | Other Services | CA, US | 943k records | VCDB |
| 2011-12-01 | Care2 | Hacking / intrusion | Other Services | CA, US | 17.9M records | VCDB |
| 2011-11-01 | Enable Scotland | Theft or loss | Other Services | GB | 101 records | VCDB |
| 2011-10-21 | International Association of Chiefs of Police | Hacking / intrusion | Other Services | Unknown | — | VCDB |
| 2011-10-07 | Nursing and Midwifery Council | Error / misconfiguration | Other Services | GB | — | VCDB |
| 2011-09-14 | Adult & Pediatric Dermatology, PC | Theft or loss | Other Services | MA, US | 2,200 records | VCDB |
| 2011-07-01 | Washington State Department of Social and Health Services | Unknown | Other Services | WA, US | 3,950 records | VCDB |
| 2011-06-03 | Ohio Health Plans | Theft or loss | Other Services | OH, US | 78k records | VCDB |
| 2011-02-01 | Catholic Social Services | Insider misuse | Other Services | AK, US | 1,700 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 2026-10-13 18:05 UTC.