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
Infostealer logs5
Credential compilation (no single victim)5
Theft or loss4
Error / misconfiguration1

Hacking / intrusion799
Data breach (cause not stated)151
Unauthorised access or disclosure62
Ransomware9
Infostealer logs5
Credential compilation (no single victim)5
Theft or loss4
Error / misconfiguration1

Hacking / intrusion799
Data breach (cause not stated)151
Unauthorised access or disclosure62
Ransomware9
Infostealer logs5
Credential compilation (no single victim)5
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%
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.

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
2018-01-01	Aviation ID Australia	Hacking / intrusion	Administrative	AU	—	VCDB
2018-01-01	Ballad Health	Insider misuse	Healthcare	TN, US	—	VCDB
2018-01-01	Bayer	Malware	Professional Services	NW, DE	—	VCDB
2018-01-01	Bell Canada	Hacking / intrusion	Information	CA	100k records	VCDB
2018-01-01	BlackRock	Error / misconfiguration	Finance & Insurance	NY, AE	12k records	VCDB
2018-01-01	BlankMediaGames	Hacking / intrusion	Information	TX, US	7.6M records	VCDB
2018-01-01	British MP	Insider misuse	Other Services	GB	—	VCDB
2018-01-01	British RAF	Hacking / intrusion	Public Administration	GB	1 records	VCDB
2018-01-01	Brownsville Fire Department (TX)	Insider misuse	Public Administration	TX, US	—	VCDB
2018-01-01	CCRM Dallas-Fort Worth	Hacking / intrusion	Healthcare	TX, US	1,117 records	VCDB
2018-01-01	Central Health Newfoundland	Insider misuse	Healthcare	CA	240 records	VCDB
2018-01-01	Chicago Public School System	Error / misconfiguration	Education	US-IL, US	—	VCDB
2018-01-01	DC Department of Health	Error / misconfiguration	Public Administration	DC, US	—	VCDB
2018-01-01	DailyObjects dailyobjects.com	Data breach (cause not stated)	—	—	464k accounts	HIBP
2018-01-01	Dena Bank	Theft or loss	Finance & Insurance	IN	39 records	VCDB
2018-01-01	Department of Homeland Security	Theft or loss	Public Administration	VA, US	247k records	VCDB
2018-01-01	DriveHer	Error / misconfiguration	Transportation	CA	—	VCDB
2018-01-01	Eastern Health	Error / misconfiguration	Healthcare	CA	30 records	VCDB
2018-01-01	Eatigo	Hacking / intrusion	Retail	SG	2.8M records	VCDB
2018-01-01	Elanic elanic.in	Data breach (cause not stated)	—	—	2.3M accounts	HIBP
2018-01-01	Email.it	Hacking / intrusion	Information	IT	600k records	VCDB
2018-01-01	Employees Retirement System of Texas	Error / misconfiguration	Finance & Insurance	TX, US	1.2M records	VCDB
2018-01-01	Facebook	Insider misuse	Information	CA, US	—	VCDB
2018-01-01	Facebook	Hacking / intrusion	Information	US	50.0M records	VCDB
2018-01-01	Garden city Community College	Insider misuse	Education	KS, US	—	VCDB
2018-01-01	GoAir	Insider misuse	Transportation	IN	—	VCDB
2018-01-01	Government of India	Hacking / intrusion	Public Administration	IN	3,000 records	VCDB
2018-01-01	Government of Newfoundland and Labrador	Error / misconfiguration	Public Administration	CA	23 records	VCDB
2018-01-01	Harper's Magazine	Hacking / intrusion	Information	US	—	VCDB
2018-01-01	HealthEngine	Insider misuse	Professional Services	AU	—	VCDB
2018-01-01	Hillcrest Country Club	Ransomware	Entertainment	US	—	VCDB
2018-01-01	Holt Medical Practice	Insider misuse	Healthcare	GB	150 records	VCDB
2018-01-01	Hova Health	Error / misconfiguration	Healthcare	MX	2.4M records	VCDB
2018-01-01	Huddle House	Malware	Accommodation & Food	US	300k records	VCDB
2018-01-01	ING Bank	Hacking / intrusion	Finance & Insurance	TR	20k records	VCDB
2018-01-01	Inmagine Group	Hacking / intrusion	Professional Services	US	8.3M records	VCDB
2018-01-01	Kaiser of Colorado	Error / misconfiguration	Healthcare	CO, US	1,290 records	VCDB
2018-01-01	LeafFilter	Hacking / intrusion	Construction	OH, US	—	VCDB
2018-01-01	LocalBlox	Error / misconfiguration	Information	WA, US	48.0M records	VCDB
2018-01-01	Luscious.net	Error / misconfiguration	Information	PA	130k records	VCDB
2018-01-01	MBM Jewelry	Error / misconfiguration	Retail	US	1.5M records	VCDB
2018-01-01	MEDantex	Error / misconfiguration	Administrative	CA, US	—	VCDB
2018-01-01	MSK Group	Hacking / intrusion	Healthcare	TN, US	—	VCDB
2018-01-01	Marriott	Hacking / intrusion	Accommodation & Food	MD, US	383.0M records	VCDB
2018-01-01	McGuire Memorial Home	Insider misuse	Healthcare	PA, US	6 records	VCDB
2018-01-01	NSO Group Ltd.	Insider misuse	Public Administration	IL	—	VCDB
2018-01-01	National Health Service	Error / misconfiguration	Public Administration	GB	150k records	VCDB
2018-01-01	Navionics	Error / misconfiguration	Manufacturing	US	261k records	VCDB
2018-01-01	Neopart Transit LLC	Insider misuse	Wholesale	PA, US	—	VCDB
2018-01-01	New Zealand Law Society	Error / misconfiguration	Professional Services	NZ	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 03:53 UTC.