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.

Disclosed incidents per month, by type of attackStacked: each band is one type; the top edge is the month's total.

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

People affected per monthBreaches counted in people (US health breaches and coded incidents).

By type of attack

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.

Most affected sectorsLast 24 months. Select one to list its incidents.

Sector against type of attackIncidents per sector (rows) and attack type (columns). Darker means more.

In healthcare, 91% of incidents were hacking / intrusion.

	Hacking / intrusion	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.

By people affected

1
Conduent Business Services LLC62.2M people
8 Oct 2025 · Hacking / intrusion · Healthcare · HHS
2
DentaQuest, LLC15.0M people
16 Jul 2026 · Hacking / intrusion · Healthcare · HHS
3
Aflac Incorporated (“Aflac”)13.9M people
8 Aug 2025 · Hacking / intrusion · Healthcare · HHS
4
Aesto, LLC9.5M people
31 Jul 2026 · Hacking / intrusion · Healthcare · HHS
5
Episource, LLC6.7M people
6 Jun 2025 · Hacking / intrusion · Healthcare · HHS
6
AdaptHealth, LLC4.1M people
14 Aug 2026 · Hacking / intrusion · Healthcare · HHS
7
Unlimited Technology Systems, LLC3.8M people
21 Jul 2026 · Hacking / intrusion · Healthcare · HHS
8
CareCloud, Inc.3.8M people
24 Jul 2026 · Hacking / intrusion · Healthcare · HHS

By accounts exposed

1
1win96.2M accounts
2 Nov 2024 · Data breach (cause not stated) · HIBP
2
Under Armour72.7M accounts
17 Nov 2025 · Data breach (cause not stated) · HIBP
3
Suno55.3M accounts
25 Nov 2025 · Data breach (cause not stated) · HIBP
4
Canadian Tire38.3M accounts
2 Oct 2025 · Data breach (cause not stated) · HIBP
5
Addi34.5M accounts
25 Mar 2026 · Data breach (cause not stated) · HIBP
6
SoundCloud29.8M accounts
15 Dec 2025 · Data breach (cause not stated) · HIBP
7
Speedio27.5M accounts
24 Dec 2024 · Data breach (cause not stated) · HIBP
8
Paidwork23.3M accounts
29 Mar 2026 · Data breach (cause not stated) · HIBP

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
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
2016-07-15	i-Dressup i-dressup.com	Data breach (cause not stated)	—	—	2.2M accounts	HIBP
2016-07-14	Canonical	Hacking / intrusion	Information	GB	2.0M records	VCDB
2016-07-14	Clash of Kings f.elex.com	Data breach (cause not stated)	—	—	1.6M accounts	HIBP
2016-07-14	Elex	Hacking / intrusion	Professional Services	CN	2.0M records	VCDB
2016-07-14	Elex	Hacking / intrusion	Information	CN	1.6M records	VCDB
2016-07-14	Taiwan's First Bank	Malware	Finance & Insurance	TW	—	VCDB
2016-07-13	Asante	Insider misuse	Healthcare	OR, US	2,400 records	VCDB
2016-07-12	Disney Consumer Products and Interactive Media	Hacking / intrusion	Information	US	391k records	VCDB
2016-07-12	St. Elizabeth Physicians	Error / misconfiguration	Healthcare	KY, US	674 records	VCDB
2016-07-12	state board of elections	Hacking / intrusion	Public Administration	IL, US	—	VCDB
2016-07-11	Interpark Corp	Hacking / intrusion	Retail	KR	10.3M records	VCDB
2016-07-11	Ventura County Health Care Agency	Error / misconfiguration	Healthcare	CA, US	777 records	VCDB
2016-07-10	Dota2 dev.dota2.com	Data breach (cause not stated)	—	—	1.9M accounts	HIBP
2016-07-10	Valve	Hacking / intrusion	Information	Unknown	1.9M records	VCDB
2016-07-09	Cambridgeshire and Peterborough NHS Foundation Trust	Theft or loss	Healthcare	GB	200 records	VCDB
2016-07-09	Shadi.com shadi.com	Data breach (cause not stated)	—	—	2.0M accounts	HIBP
2016-07-08	Island Health	Insider misuse	Healthcare	CA	34 records	VCDB
2016-07-08	LA County+USC Medical Center	Insider misuse	Healthcare	CA, US	743 records	VCDB
2016-07-08	Public Education Employees' Health Insurance Plan	Error / misconfiguration	Finance & Insurance	AL, US	—	VCDB
2016-07-08	The Co-operative Food	Theft or loss	Retail	GB	—	VCDB
2016-07-07	Care Quality Commission	Error / misconfiguration	Healthcare	GB	500 records	VCDB
2016-07-07	Datadog	Hacking / intrusion	Professional Services	NY, US	—	VCDB
2016-07-07	Netia	Hacking / intrusion	Information	PL	300k records	VCDB
2016-07-07	The Center for Neurosurgical and Spinal Disorders	Malware	Healthcare	LA, US	1,134 records	VCDB
2016-07-05	Potters Hill Missionary Baptist Church	Ransomware	Other Services	NC, US	—	VCDB
2016-07-04	dBforums dbforums.com	Data breach (cause not stated)	—	—	363k accounts	HIBP
2016-07-03	Mac Forums mac-forums.com	Data breach (cause not stated)	—	—	327k accounts	HIBP
2016-07-02	FItBit	Error / misconfiguration	Manufacturing	CA, US	—	VCDB
2016-07-01	Cumming Police Dept	Insider misuse	Public Administration	US	—	VCDB
2016-07-01	AbuseWith.Us abusewith.us	Data breach (cause not stated)	—	—	1.4M accounts	HIBP
2016-07-01	Automation Integrated	Hacking / intrusion	Professional Services	OK, US	—	VCDB
2016-07-01	Aviva Corp Ltd	Insider misuse	Finance & Insurance	GB	14k records	VCDB
2016-07-01	California Department of Public Health	Hacking / intrusion	Public Administration	CA, US	93 records	VCDB
2016-07-01	Care Quality Commission's	Error / misconfiguration	Healthcare	GB	500 records	VCDB
2016-07-01	Central Ohio Urology Group	Hacking / intrusion	Healthcare	OH, US	300k records	VCDB
2016-07-01	CrackingForum crackingforum.com	Data breach (cause not stated)	—	—	660k accounts	HIBP
2016-07-01	Department of Veterans Affairs (VA) Northern Indiana Health Care System (NIHCS)	Error / misconfiguration	Healthcare	IL, US	2 records	VCDB
2016-07-01	FreshMenu freshmenu.com	Data breach (cause not stated)	—	—	110k accounts	HIBP
2016-07-01	Funimation funimation.com	Data breach (cause not stated)	—	—	2.5M accounts	HIBP
2016-07-01	GPS Underground gpsunderground.com	Data breach (cause not stated)	—	—	670k accounts	HIBP
2016-07-01	H&L Australia	Hacking / intrusion	Professional Services	AU	—	VCDB
2016-07-01	Jerry's Artarama N.C., Inc.	Malware	Retail	NC, US	—	VCDB
2016-07-01	Kaneva kaneva.com	Data breach (cause not stated)	—	—	3.9M accounts	HIBP
2016-07-01	LastPass	Hacking / intrusion	Information	VA, US	—	VCDB
2016-07-01	MTN Irancell	Hacking / intrusion	Information	IR	20.0M records	VCDB
2016-07-01	Meritus Medical Center	Insider misuse	Healthcare	MD, US	1,029 records	VCDB
2016-07-01	Muslim Match	Hacking / intrusion	Other Services	Unknown	150k records	VCDB
2016-07-01	New England Healthcare Exchange Network	Insider misuse	Information	US	3,840 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 22:40 UTC.