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
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 (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
2017-10-01	Shoreview credit union	Theft or loss	Finance & Insurance	MN, US	—	VCDB
2017-10-01	Spanish Ministry of Public Works and Transport	Hacking / intrusion	Public Administration	ES	—	VCDB
2017-10-01	T Moble	Hacking / intrusion	Information	US	—	VCDB
2017-10-01	Tarte Cosmetics	Error / misconfiguration	Retail	NY, US	1.9M records	VCDB
2017-10-01	Tesco Express	Theft or loss	Retail	GB	—	VCDB
2017-10-01	Texas Children's Health Plan	Insider misuse	Finance & Insurance	US	900 records	VCDB
2017-10-01	Tommie Copper	Malware	Wholesale	TX, US	—	VCDB
2017-10-01	US Bank in Clarksville	Theft or loss	Finance & Insurance	TN, US	—	VCDB
2017-10-01	Windward Family Therapy Center	Error / misconfiguration	Healthcare	HI, US	50 records	VCDB
2017-09-30	R6DB	Ransomware	Information	US	—	VCDB
2017-09-29	7-Eleven	Theft or loss	Retail	PA, US	—	VCDB
2017-09-28	Buresh Building Systems	Hacking / intrusion	Construction	IA, US	1 records	VCDB
2017-09-28	Rocky Mountain Health Care Services	Theft or loss	Healthcare	CO, US	909 records	VCDB
2017-09-27	DXC Technologies	Hacking / intrusion	Professional Services	US	—	VCDB
2017-09-27	NC A&T University	Error / misconfiguration	Education	NC, US	1,581 records	VCDB
2017-09-25	Citizen’s Bank	Theft or loss	Finance & Insurance	US	—	VCDB
2017-09-25	North Shore Community Bank	Theft or loss	Finance & Insurance	IL, US	—	VCDB
2017-09-23	Ball Memorial Hospital	Error / misconfiguration	Healthcare	IN, US	1,399 records	VCDB
2017-09-22	Decatur County General Hospital	Malware	Healthcare	TX, US	—	VCDB
2017-09-22	Wendy's	Theft or loss	Accommodation & Food	US	—	VCDB
2017-09-16	7-Eleven	Theft or loss	Retail	Maryland, US	—	VCDB
2017-09-14	Affinity Bank	Theft or loss	Finance & Insurance	NJ, US	—	VCDB
2017-09-13	Roger Williams Medical Center	Theft or loss	Healthcare	RI, US	60 records	VCDB
2017-09-13	Sports Medicine and Rehabilitation Therapy	Hacking / intrusion	Healthcare	MA, US	16k records	VCDB
2017-09-12	Lithuania's Labour Exchange	Error / misconfiguration	Public Administration	LT	—	VCDB
2017-09-11	Manasquan Bank	Theft or loss	Finance & Insurance	NJ, US	—	VCDB
2017-09-10	Augusta University	Phishing / social engineering	Education	GA, US	417k records	VCDB
2017-09-10	Smogon smogon.com	Data breach (cause not stated)	—	—	386k accounts	HIBP
2017-09-09	St. Paul's Hospital	Error / misconfiguration	Healthcare	CA	1 records	VCDB
2017-09-07	Moneycontrol moneycontrol.com	Data breach (cause not stated)	—	—	763k accounts	HIBP
2017-09-06	Seven Peaks School	Insider misuse	Education	US	5,912 records	VCDB
2017-09-05	East Central Kansas Area Agency on Aging	Ransomware	Public Administration	KS, US	8,750 records	VCDB
2017-09-04	Brevard Physician Associates	Theft or loss	Healthcare	FL, US	7,967 records	VCDB
2017-09-02	Canoe.ca	Hacking / intrusion	Information	CA	1.0M records	VCDB
2017-09-01	Bay Sleep Clinic	Error / misconfiguration	Healthcare	California, US	—	VCDB
2017-09-01	Splendora ISD	Hacking / intrusion	Education	TX, US	—	VCDB
2017-09-01	AU Medical Center	Hacking / intrusion	Education	Georgia, US	2 records	VCDB
2017-09-01	Amazon	Insider misuse	Retail	WA, US	—	VCDB
2017-09-01	Amsterdam Gas Station	Theft or loss	Retail	NY, US	—	VCDB
2017-09-01	BNI Bank	Theft or loss	Finance & Insurance	IN	—	VCDB
2017-09-01	BP Gas Station	Theft or loss	Retail	OH, US	—	VCDB
2017-09-01	Biletix	Malware	Entertainment	TR	—	VCDB
2017-09-01	Burgerville	Malware	Accommodation & Food	WA, US	—	VCDB
2017-09-01	Chuckles Gas Station	Theft or loss	Retail	IN, US	—	VCDB
2017-09-01	City of Ferndale	Theft or loss	Public Administration	US	—	VCDB
2017-09-01	City of Yellowknife	Insider misuse	Public Administration	CA, US	—	VCDB
2017-09-01	E.T. Carmichael	Error / misconfiguration	Education	CA	—	VCDB
2017-09-01	Ele.me	Insider misuse	Administrative	CN	65k records	VCDB
2017-09-01	Fauquier gas stations	Theft or loss	Retail	US	—	VCDB
2017-09-01	Garden Estates of Temple	Theft or loss	Healthcare	PA, US	1 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 07:27 UTC.