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
2016-09-01	Sports Direct	Hacking / intrusion	Retail	GB	30k records	VCDB
2016-09-01	SuperCell	Hacking / intrusion	Information	FI	1.1M records	VCDB
2016-09-01	True Vacation Travel	Insider misuse	Administrative	CA, US	—	VCDB
2016-09-01	UniCredit SpA,	Hacking / intrusion	Finance & Insurance	IT	400k records	VCDB
2016-09-01	Wood County Hospital	Ransomware	Healthcare	OH, US	—	VCDB
2016-08-31	Al Zahra Private Medical Centre	Hacking / intrusion	Healthcare	AE	5,044 records	VCDB
2016-08-31	exxon Gas station	Theft or loss	Retail	VA, US	—	VCDB
2016-08-30	MDPI mdpi.com	Data breach (cause not stated)	—	—	845k accounts	HIBP
2016-08-28	Christian Louboutin	Hacking / intrusion	Retail	US	666 records	VCDB
2016-08-27	National Security Agency	Insider misuse	Professional Services	DC, US	—	VCDB
2016-08-25	Dino Stop	Theft or loss	Retail	WI, US	—	VCDB
2016-08-24	Hospital Auxilio Mutuo	Theft or loss	Healthcare	NY, US	—	VCDB
2016-08-24	Langston Hughes Young Explorers Academy	Error / misconfiguration	Education	NY, US	—	VCDB
2016-08-24	Man Alive Lane Treatment Center	Malware	Healthcare	MD, US	860 records	VCDB
2016-08-23	Opera Software ASA	Hacking / intrusion	Information	NO	1.7M records	VCDB
2016-08-22	Baystate Health	Phishing / social engineering	Healthcare	MA, US	13k records	VCDB
2016-08-20	Fred's Pharmacy	Theft or loss	Retail	TN, US	—	VCDB
2016-08-19	PPCGeeks ppcgeeks.com	Data breach (cause not stated)	—	—	493k accounts	HIBP
2016-08-16	City of Killeen	Hacking / intrusion	Public Administration	TX, US	—	VCDB
2016-08-16	Rite Aid Corporation	Phishing / social engineering	Retail	NY, US	1 records	VCDB
2016-08-16	Virgin Mobile	Error / misconfiguration	Information	AU	—	VCDB
2016-08-15	GeekedIn geekedin.net	Data breach (cause not stated)	—	—	1.1M accounts	HIBP
2016-08-15	Social Blade	Hacking / intrusion	Professional Services	NC, US	287k records	VCDB
2016-08-15	Texas Toros	Error / misconfiguration	Entertainment	TX, US	30 records	VCDB
2016-08-15	Unnamed organisation	Theft or loss	Finance & Insurance	US	—	VCDB
2016-08-14	Chase Bank	Theft or loss	Finance & Insurance	CA, US	50 records	VCDB
2016-08-13	Leoni AG	Phishing / social engineering	Manufacturing	DE	—	VCDB
2016-08-12	Harbin Clinic	Error / misconfiguration	Healthcare	GA, US	498 records	VCDB
2016-08-12	Webster Five Bank	Theft or loss	Finance & Insurance	MA, US	—	VCDB
2016-08-11	Epic Games epicgames.com	Data breach (cause not stated)	—	—	252k accounts	HIBP
2016-08-11	Epic Games	Hacking / intrusion	Information	NC, US	808k records	VCDB
2016-08-11	Epic Games	Hacking / intrusion	Information	NC, US	808k records	VCDB
2016-08-11	Napa Valley Dentistry	Theft or loss	Healthcare	CA, US	—	VCDB
2016-08-11	Unreal Engine unrealengine.com	Data breach (cause not stated)	—	—	530k accounts	HIBP
2016-08-10	QuickChek	Hacking / intrusion	Retail	NJ, US	—	VCDB
2016-08-10	Rebecca Minkoff	Hacking / intrusion	Professional Services	US	—	VCDB
2016-08-10	Seattle Indian Health Board	Hacking / intrusion	Healthcare	WA, US	—	VCDB
2016-08-08	British Columbia Ministry of Finance	Error / misconfiguration	Public Administration	CA	23 records	VCDB
2016-08-08	Cross Fire cfire.mail.ru	Data breach (cause not stated)	—	—	12.9M accounts	HIBP
2016-08-08	Nassau Educators Federal Credit Union	Theft or loss	Finance & Insurance	NY, US	—	VCDB
2016-08-08	Пара Па parapa.mail.ru	Data breach (cause not stated)	—	—	4.9M accounts	HIBP
2016-08-07	Bringham Young University	Insider misuse	Other Services	UT, US	1 records	VCDB
2016-08-07	Wishbone (2016) wishbone.io	Data breach (cause not stated)	—	—	2.2M accounts	HIBP
2016-08-05	Khronos Group	Hacking / intrusion	Professional Services	OR, US	3,000 records	VCDB
2016-08-05	Mail.ru Group Ltd	Hacking / intrusion	Information	RU	25.0M records	VCDB
2016-08-04	Children's Mercy Hospital	Theft or loss	Healthcare	MO, US	238 records	VCDB
2016-08-04	ExxonMobile Gas Station	Theft or loss	Retail	TX, US	—	VCDB
2016-08-04	Miner Norton Gold Fields	Error / misconfiguration	Mining	AU	300 records	VCDB
2016-08-03	Rainbow Children’s Clinic	Ransomware	Healthcare	TX, US	33k records	VCDB
2016-08-03	Tipperary Corporations	Error / misconfiguration	Wholesale	TX, 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 2026-10-17 21:14 UTC.