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.

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

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

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	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.

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 (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
2016-01-01	British and Foreign Bible Society	Ransomware	Other Services	GB	—	VCDB
2016-01-01	Construction Forestry Mining Energy Union	Error / misconfiguration	Other Services	AU	—	VCDB
2016-01-01	Dawoodi Bohra Trust	Hacking / intrusion	Other Services	IN-MH, IN	—	VCDB
2016-01-01	Mate1.com	Hacking / intrusion	Other Services	CA	27.0M records	VCDB
2016-01-01	Save the Bay	Error / misconfiguration	Other Services	BS	—	VCDB
2016-01-01	World Anti-Doping Agency	Hacking / intrusion	Other Services	CA	25 records	VCDB
2015-12-27	Unnamed organisation	Hacking / intrusion	Other Services	Unknown	30k records	VCDB
2015-12-24	BeautifulPeople.com	Hacking / intrusion	Other Services	US	1.1M records	VCDB
2015-12-23	Annapolis Parking Garages	Malware	Other Services	MD, US	—	VCDB
2015-10-17	CalOptima	Error / misconfiguration	Other Services	CA, US	100 records	VCDB
2015-10-01	Sheridan Chapter of Trout Unlimited	Insider misuse	Other Services	WY, US	—	VCDB
2015-10-01	The Archdiocese of Denver	Hacking / intrusion	Other Services	CO, US	18k records	VCDB
2015-09-12	Bremerton Housing Authority	Hacking / intrusion	Other Services	WA, US	1,100 records	VCDB
2015-07-15	Avid Life Media	Hacking / intrusion	Other Services	CA	42.6M records	VCDB
2015-05-29	People's Freedom Party (PARNAS)	Hacking / intrusion	Other Services	RU	—	VCDB
2015-03-30	National Organization for Marriage	Unknown	Other Services	US	—	VCDB
2015-02-13	ndiana State Medical Association	Theft or loss	Other Services	IN, US	39k records	VCDB
2015-01-01	Alzheimer's Society	Hacking / intrusion	Other Services	GB	66k records	VCDB
2015-01-01	American Bankers Association	Hacking / intrusion	Other Services	DC, US	6,400 records	VCDB
2015-01-01	Democratic National Committee	Hacking / intrusion	Other Services	DC, US	20k records	VCDB
2015-01-01	Distrct Health Board	Phishing / social engineering	Other Services	NZ	2 records	VCDB
2015-01-01	Economic Freedom Fighters	Theft or loss	Other Services	ZA	—	VCDB
2015-01-01	Hamilton Children's Aid Society	Error / misconfiguration	Other Services	CA	1 records	VCDB
2015-01-01	SuccessfMatch.com	Insider misuse	Other Services	GB	—	VCDB
2015-01-01	Wash Tub	Theft or loss	Other Services	TX, US	2 records	VCDB
2014-07-24	Service Employee International Union National Benefit Fund	Theft or loss	Other Services	NY, US	800 records	VCDB
2014-07-18	Centrelink	Error / misconfiguration	Other Services	AU	23 records	VCDB
2014-07-01	PK Pakistan People's Party	Hacking / intrusion	Other Services	PK	—	VCDB
2014-06-05	College of the Desert	Error / misconfiguration	Other Services	CA, US	—	VCDB
2014-06-04	Operation for Security and Cooperation in Europe	Hacking / intrusion	Other Services	AT	—	VCDB
2014-05-28	Byron Mallott Gubernatorial Campaign	Theft or loss	Other Services	AK, US	—	VCDB
2014-04-06	BJP Junagadh	Hacking / intrusion	Other Services	IN	—	VCDB
2014-04-03	csahell.com	Hacking / intrusion	Other Services	GB	—	VCDB
2014-04-01	Rat Resource & Research Center	Hacking / intrusion	Other Services	MI, US	—	VCDB
2014-03-23	PlanetRomeo BV	Hacking / intrusion	Other Services	NL	—	VCDB
2014-03-04	Veterans of Foreign Wars	Malware	Other Services	MO, US	55k records	VCDB
2014-03-01	National Credit Adjusters	Unknown	Other Services	KS, US	—	VCDB
2014-03-01	Russia Today	Hacking / intrusion	Other Services	RU	—	VCDB
2014-02-28	UA Right Sector nationalist movement (banderivets.org.ua)	Hacking / intrusion	Other Services	UA	—	VCDB
2014-02-26	Seven Counties Services, Inc.	Error / misconfiguration	Other Services	KY, US	727 records	VCDB
2014-02-08	Skepchick.org	Hacking / intrusion	Other Services	US	—	VCDB
2014-02-01	Bennington VT Chamber of Commerce	Ransomware	Other Services	VT, US	—	VCDB
2014-02-01	Veterans of Foreign Wars of The United States	Hacking / intrusion	Other Services	KS, US	—	VCDB
2014-01-28	TeaM Madleets	Hacking / intrusion	Other Services	PK	—	VCDB
2014-01-01	Boy Scouts of America	Theft or loss	Other Services	MO, US	70 records	VCDB
2014-01-01	Directors Guild of Canada	Hacking / intrusion	Other Services	CA	2,000 records	VCDB
2014-01-01	English Defence League	Hacking / intrusion	Other Services	GB	200 records	VCDB
2014-01-01	Ladies First Choice	Insider misuse	Other Services	FL, US	—	VCDB
2014-01-01	Lutheran Church Australia	Hacking / intrusion	Other Services	AU	1,484 records	VCDB
2014-01-01	PR Puerto Rican Association of Surgeons	Hacking / intrusion	Other Services	PR	9,950 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 16:14 UTC.