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
- 473 breaches reported to HHS
- Material incidents, US listed firms
- 23
- 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 sectorHealthcare748 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 / intrusion793
- 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 / intrusion793
- 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 / intrusion793
- 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 | 681 | 60 | 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
438 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2012-07-13 | Bit9, Inc. | Malware | Professional Services | MA, US | — | VCDB |
| 2012-07-12 | SwedishAmerican Health System | Theft or loss | Professional Services | IL, US | 1,500 records | VCDB |
| 2012-07-05 | Cardiovascular Consultants of North Texas | Insider misuse | Professional Services | TX, US | 2,462 records | VCDB |
| 2012-07-01 | Bit9 | Malware | Professional Services | MA, US | — | VCDB |
| 2012-07-01 | Disqus | Hacking / intrusion | Professional Services | CA, US | 17.5M records | VCDB |
| 2012-06-09 | League of Legends | Hacking / intrusion | Professional Services | CA, US | — | VCDB |
| 2012-06-01 | Telvent Canada Ltd | Hacking / intrusion | Professional Services | CA | — | VCDB |
| 2012-03-27 | CSS Corp | Hacking / intrusion | Professional Services | CA, US | 66 records | VCDB |
| 2012-02-09 | MacForBeginners | Hacking / intrusion | Professional Services | DK | 714 records | VCDB |
| 2012-02-01 | Netfleet Domain Names | Hacking / intrusion | Professional Services | AU | — | VCDB |
| 2012-01-26 | Advanced Clinical Research Institute | Theft or loss | Professional Services | CA, US | 875 records | VCDB |
| 2012-01-26 | Advanced Clinical Research Institute | Theft or loss | Professional Services | CA, US | 875 records | VCDB |
| 2012-01-01 | 1000 Genomes Project | Error / misconfiguration | Professional Services | GB | — | VCDB |
| 2012-01-01 | Accurate Accounting & Tax Service | Error / misconfiguration | Professional Services | CA, US | — | VCDB |
| 2012-01-01 | Aon Hewitt | Hacking / intrusion | Professional Services | IL, US | — | VCDB |
| 2012-01-01 | California Statewide Law Enforcement Association (CSLEA) | Hacking / intrusion | Professional Services | CA, US | 2,500 records | VCDB |
| 2012-01-01 | Cancer Care Group | Theft or loss | Professional Services | IN, US | 55k records | VCDB |
| 2012-01-01 | Clark, Friel and Joyce, PA | Theft or loss | Professional Services | OR, US | — | VCDB |
| 2012-01-01 | Destiny Software | Hacking / intrusion | Professional Services | CA, US | 1,630 records | VCDB |
| 2012-01-01 | Diagnostic Health Solutions | Hacking / intrusion | Professional Services | GB | 3,550 records | VCDB |
| 2012-01-01 | Economic Development Association Scotland | Hacking / intrusion | Professional Services | GB | 647 records | VCDB |
| 2012-01-01 | Elliott Greenleaf & Siedzikowski | Insider misuse | Professional Services | PA, US | — | VCDB |
| 2012-01-01 | G2 Web Services LLC | Hacking / intrusion | Professional Services | WA, US | — | VCDB |
| 2012-01-01 | Gamigo | Hacking / intrusion | Professional Services | DE | 8.2M records | VCDB |
| 2012-01-01 | Grindr LLC | Hacking / intrusion | Professional Services | CA, US | 1.0M records | VCDB |
| 2012-01-01 | Incorporating Services Limited | Malware | Professional Services | DC, US | — | VCDB |
| 2012-01-01 | Islamic Finder | Hacking / intrusion | Professional Services | CA, US | 300 records | VCDB |
| 2012-01-01 | Japan Aerospace Exploration Agency | Malware | Professional Services | JP | — | VCDB |
| 2012-01-01 | KTSU Radio | Insider misuse | Professional Services | TX, US | 300 records | VCDB |
| 2012-01-01 | MiniMins.com | Hacking / intrusion | Professional Services | CA, US | 80k records | VCDB |
| 2012-01-01 | Ministry of Economy & Trade | Hacking / intrusion | Professional Services | LB | — | VCDB |
| 2012-01-01 | Mo Money Taxes | Error / misconfiguration | Professional Services | TN, US | — | VCDB |
| 2012-01-01 | Opus Trust Marketing | Error / misconfiguration | Professional Services | GB | — | VCDB |
| 2012-01-01 | Riot Games, Inc. | Malware | Professional Services | CA, US | 24.5M records | VCDB |
| 2012-01-01 | Sprechman & Associates | Insider misuse | Professional Services | FL, US | — | VCDB |
| 2012-01-01 | Telvent Canada Ltd | Malware | Professional Services | CA | — | VCDB |
| 2012-01-01 | Tertiary Education Commission | Theft or loss | Professional Services | NZ | 500 records | VCDB |
| 2012-01-01 | Unnamed organisation | Malware | Professional Services | AZ | — | VCDB |
| 2012-01-01 | Unnamed organisation | Malware | Professional Services | BY | — | VCDB |
| 2012-01-01 | Unnamed organisation | Malware | Professional Services | KZ | — | VCDB |
| 2012-01-01 | Unnamed organisation | Malware | Professional Services | RU | — | VCDB |
| 2012-01-01 | WHMCS | Phishing / social engineering | Professional Services | GB | 500k records | VCDB |
| 2012-01-01 | Walbridge Aldinger Co | Insider misuse | Professional Services | MI, US | 300 records | VCDB |
| 2011-11-28 | VG | Malware | Professional Services | PA, US | — | VCDB |
| 2011-11-19 | Ascent Services Group | Malware | Professional Services | CA, US | — | VCDB |
| 2011-11-01 | 101domain, Inc. | Phishing / social engineering | Professional Services | CA, US | — | VCDB |
| 2011-11-01 | Ernst & Young | Error / misconfiguration | Professional Services | AL, US | — | VCDB |
| 2011-10-25 | Brevard Emergency Services | Theft or loss | Professional Services | FL, US | 2,200 records | VCDB |
| 2011-10-01 | GMR Transcription Services, Inc. | Error / misconfiguration | Professional Services | CA, US | — | VCDB |
| 2011-08-11 | Diversified Resources, Inc. | Theft or loss | Professional Services | GA, US | 863 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 01:35 UTC.