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

179 incidents match, newest first.

Date	Organisation	Type of attack	Sector	Where	Affected	Source
2016-01-25	CertifiKid	Malware	Administrative	US	—	VCDB
2016-01-01	Equifax Inc	Hacking / intrusion	Administrative	US-GA, US	—	VCDB
2015-10-01	CoPilot Provider Support Systems	Hacking / intrusion	Administrative	NY, US	220k records	VCDB
2015-09-15	Experian Plc	Hacking / intrusion	Administrative	US	15.0M records	VCDB
2015-07-31	Unknown	Malware	Administrative	CN	1.6M records	VCDB
2015-07-26	PLS Financial Services	Error / misconfiguration	Administrative	IL, US	34 records	VCDB
2015-05-27	Department of Homeland Security	Insider misuse	Administrative	US	1 records	VCDB
2015-01-01	Beacon Health System	Phishing / social engineering	Administrative	IN, US	220k records	VCDB
2015-01-01	Mandarin Hotel PCL	Malware	Administrative	Unknown	—	VCDB
2015-01-01	Receivable Management Group	Insider misuse	Administrative	GA, US	150 records	VCDB
2015-01-01	Tesco PLC	Insider misuse	Administrative	GB	4.8M records	VCDB
2014-09-01	Unnamed organisation	Insider misuse	Administrative	VA, US	—	VCDB
2014-08-11	Association of Corporate Travel Executives	Hacking / intrusion	Administrative	US	11 records	VCDB
2014-07-01	Samaritan Health Services, Inc	Error / misconfiguration	Administrative	OR, US	1,222 records	VCDB
2014-06-01	Colorado Neurodiagnostics	Theft or loss	Administrative	US	—	VCDB
2014-06-01	Madvapes	Hacking / intrusion	Administrative	US	—	VCDB
2014-05-01	Mobilex USA	Error / misconfiguration	Administrative	US	—	VCDB
2014-04-21	Metropolitn Companies, Inc.	Hacking / intrusion	Administrative	NY, US	—	VCDB
2014-04-17	Pine Environmental Services, LLC	Insider misuse	Administrative	CT, US	—	VCDB
2014-04-01	Moshtix	Hacking / intrusion	Administrative	AU	—	VCDB
2014-03-29	NCO Group	Error / misconfiguration	Administrative	PA, US	2,468 records	VCDB
2014-02-05	Sutherland Global Services	Theft or loss	Administrative	CA, US	400k records	VCDB
2014-02-05	Sutherland Healthcare Solutions Inc	Theft or loss	Administrative	CA, US	—	VCDB
2014-01-01	Abeo Management Corporation	Insider misuse	Administrative	CA, US	—	VCDB
2014-01-01	Arcadia Home Care & Staffing	Insider misuse	Administrative	MI, US	—	VCDB
2014-01-01	Chestnut Pathology Services, PC	Error / misconfiguration	Administrative	MA, US	67k records	VCDB
2014-01-01	Cornerstone Health Care	Theft or loss	Administrative	NC, US	548 records	VCDB
2014-01-01	Hotel Hippo	Hacking / intrusion	Administrative	GB	24 records	VCDB
2014-01-01	Interactive Response Technologies	Phishing / social engineering	Administrative	FL, US	—	VCDB
2014-01-01	Manpower Corporation	Hacking / intrusion	Administrative	IL	70k records	VCDB
2014-01-01	RISCO Group	Error / misconfiguration	Administrative	IL	1 records	VCDB
2014-01-01	Reservation Counter	Insider misuse	Administrative	UT, US	—	VCDB
2014-01-01	USIS US Investigative Services	Hacking / intrusion	Administrative	VA, US	—	VCDB
2014-01-01	Unknown	Insider misuse	Administrative	GA, US	—	VCDB
2014-01-01	Viator	Hacking / intrusion	Administrative	CA, US	1.4M records	VCDB
2013-12-07	National Air Traffic Services, Ltd.	Error / misconfiguration	Administrative	GB	—	VCDB
2013-11-02	Extra Life	Hacking / intrusion	Administrative	US	—	VCDB
2013-11-01	Jonathan M. Wainwright Memorial VA Medical Center	Error / misconfiguration	Administrative	WA, US	1,519 records	VCDB
2013-11-01	Vantiv Inc	Hacking / intrusion	Administrative	US	—	VCDB
2013-10-31	Reimbursement Technologies, Inc.	Insider misuse	Administrative	PA, US	2,300 records	VCDB
2013-10-24	EZYield	Hacking / intrusion	Administrative	NY, US	1 records	VCDB
2013-10-12	Xerox Corporation	Error / misconfiguration	Administrative	CT, US	—	VCDB
2013-10-01	South Western Ambulance Service	Error / misconfiguration	Administrative	GB	45k records	VCDB
2013-10-01	cvideo.co.il	Hacking / intrusion	Administrative	IL	3,349 records	VCDB
2013-09-23	Yusen Logistics (Americas) Inc.	Theft or loss	Administrative	US	—	VCDB
2013-08-28	International SOS	Hacking / intrusion	Administrative	SG	—	VCDB
2013-08-11	Republic Services	Theft or loss	Administrative	AZ, US	82k records	VCDB
2013-08-02	Californi Department of Motor Vehicles	Hacking / intrusion	Administrative	CA, US	—	VCDB
2013-07-22	Black Tree Gaming Limited	Malware	Administrative	GB	5.9M records	VCDB
2013-07-22	R T Jones Capital Equities Inc	Hacking / intrusion	Administrative	MO, US	—	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.