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
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion792
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- Ransomware9
- Infostealer logs5
- Credential compilation (no single victim)5
- Theft or loss4
- Error / misconfiguration1
- Hacking / intrusion792
- Data breach (cause not stated)150
- Unauthorised access or disclosure60
- 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 | 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 | |||||
| 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 (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
438 incidents match, newest first.
| Date | Organisation | Type of attack | Sector | Where | Affected | Source |
|---|---|---|---|---|---|---|
| 2016-09-24 | Dow Corning Corp | Insider misuse | Professional Services | MI, US | 4,000 records | VCDB |
| 2016-09-22 | Florida Bar Association | Hacking / intrusion | Professional Services | FL, US | 260k records | VCDB |
| 2016-09-07 | Capita | Error / misconfiguration | Professional Services | GB | 9,000 records | VCDB |
| 2016-09-01 | FraserCPA | Ransomware | Professional Services | NJ, US | 12 records | VCDB |
| 2016-08-27 | National Security Agency | Insider misuse | Professional Services | DC, US | — | VCDB |
| 2016-08-15 | Social Blade | Hacking / intrusion | Professional Services | NC, US | 287k records | VCDB |
| 2016-08-10 | Rebecca Minkoff | Hacking / intrusion | Professional Services | US | — | VCDB |
| 2016-08-05 | Khronos Group | Hacking / intrusion | Professional Services | OR, US | 3,000 records | VCDB |
| 2016-08-01 | Unknown | Hacking / intrusion | Professional Services | GB | — | VCDB |
| 2016-07-21 | Nordic Consulting Partners, Inc. | Error / misconfiguration | Professional Services | WI, US | — | VCDB |
| 2016-07-15 | Kingo Energy | Insider misuse | Professional Services | GT | 19k records | VCDB |
| 2016-07-15 | SOAProjects Inc | Hacking / intrusion | Professional Services | CA, US | — | VCDB |
| 2016-07-14 | Elex | Hacking / intrusion | Professional Services | CN | 2.0M records | VCDB |
| 2016-07-07 | Datadog | Hacking / intrusion | Professional Services | NY, US | — | VCDB |
| 2016-07-01 | Automation Integrated | Hacking / intrusion | Professional Services | OK, US | — | VCDB |
| 2016-07-01 | H&L Australia | Hacking / intrusion | Professional Services | AU | — | VCDB |
| 2016-06-06 | uTorrent | Hacking / intrusion | Professional Services | AZ, US | 385k records | VCDB |
| 2016-06-01 | Cerulean Studios | Hacking / intrusion | Professional Services | CT, US | — | VCDB |
| 2016-05-23 | Pinal County Attorney's Office | Ransomware | Professional Services | AZ, US | — | VCDB |
| 2016-05-21 | Newkirk Products | Hacking / intrusion | Professional Services | NY, US | 3.3M records | VCDB |
| 2016-05-14 | Unnamed organisation | Theft or loss | Professional Services | US | — | VCDB |
| 2016-03-01 | Zhaopin.com | Phishing / social engineering | Professional Services | CN | — | VCDB |
| 2016-03-01 | LBI Inc | Insider misuse | Professional Services | CT, US | — | VCDB |
| 2016-03-01 | Lewis, Kisch & Associates | Hacking / intrusion | Professional Services | MN, US | — | VCDB |
| 2016-03-01 | SS&C Technologies | Malware | Professional Services | US | — | VCDB |
| 2016-03-01 | code.org | Error / misconfiguration | Professional Services | SG | — | VCDB |
| 2016-02-26 | EqualizeRCM Services | Theft or loss | Professional Services | TX, US | 20k records | VCDB |
| 2016-02-25 | Katherman Kitts & Co. LLP | Theft or loss | Professional Services | Unknown | — | VCDB |
| 2016-02-10 | Japan's National Tax Agency | Malware | Professional Services | JP | — | VCDB |
| 2016-02-01 | Bundle Stars | Hacking / intrusion | Professional Services | GB | — | VCDB |
| 2016-02-01 | VerticalScope | Hacking / intrusion | Professional Services | CA | 45.0M records | VCDB |
| 2016-01-30 | Empathia | Malware | Professional Services | WI, US | — | VCDB |
| 2016-01-27 | Lafler, Moore, Connerty & Webb | Malware | Professional Services | CA, US | — | VCDB |
| 2016-01-23 | BOHEMIA INTERACTIVE a.s. | Hacking / intrusion | Professional Services | CZ | 200k records | VCDB |
| 2016-01-18 | Unnamed organisation | Error / misconfiguration | Professional Services | IN, US | — | VCDB |
| 2016-01-15 | Availity | Hacking / intrusion | Professional Services | US-FL, US | 522 records | VCDB |
| 2016-01-07 | Virginia Dept of Human Resource Management | Error / misconfiguration | Professional Services | VA, US | — | VCDB |
| 2016-01-01 | Cyberoam | Hacking / intrusion | Professional Services | IN | 1.0M records | VCDB |
| 2016-01-01 | EC-Council | Hacking / intrusion | Professional Services | NM, US | — | VCDB |
| 2016-01-01 | MJS and Associates, LLC | Insider misuse | Professional Services | TX, US | — | VCDB |
| 2016-01-01 | Thomson Reuters Corp | Error / misconfiguration | Professional Services | NY, US | — | VCDB |
| 2016-01-01 | TorrentFreak | Hacking / intrusion | Professional Services | Unknown | — | VCDB |
| 2016-01-01 | Ullrich Delevati CPAs | Unknown | Professional Services | CA, US | — | VCDB |
| 2016-01-01 | Unknown | Hacking / intrusion | Professional Services | US | 2 records | VCDB |
| 2016-01-01 | Verizon Enterprise Services | Hacking / intrusion | Professional Services | NJ, US | 1.5M records | VCDB |
| 2015-12-30 | Shire Human Genetic Therapies, Inc. | Theft or loss | Professional Services | MA, US | — | VCDB |
| 2015-12-20 | Design Spike, Inc | Error / misconfiguration | Professional Services | WA, US | 258 records | VCDB |
| 2015-12-01 | PST Services | Error / misconfiguration | Professional Services | GA, US | 10k records | VCDB |
| 2015-11-10 | TaxAct | Hacking / intrusion | Professional Services | IA, US | — | VCDB |
| 2015-11-04 | Niteworks | Hacking / intrusion | Professional Services | GB | 831 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 17:55 UTC.