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

805 incidents match, newest first.

Date	Organisation	Type of attack	Sector	Where	Affected	Source
2020-12-01	MyFreeCams	Hacking / intrusion	Information	US	2.0M records	VCDB
2020-12-01	Q Link Wireless	Error / misconfiguration	Information	FL, US	—	VCDB
2020-12-01	SolarWinds	Malware	Information	TX, US	—	VCDB
2020-11-24	Netgain Technology	Ransomware	Information	MN, US	—	VCDB
2020-11-01	DeFi	Hacking / intrusion	Information	US	—	VCDB
2020-10-06	Pray.com	Error / misconfiguration	Information	CA, US	10.0M records	VCDB
2020-10-01	Broadvoice	Error / misconfiguration	Information	US-CA, US	10k records	VCDB
2020-10-01	Isentia	Ransomware	Information	AU	—	VCDB
2020-09-12	Microsoft	Error / misconfiguration	Information	WA, US	10.0M records	VCDB
2020-09-07	Equinix	Ransomware	Information	CA, US	—	VCDB
2020-08-20	Freepik	Hacking / intrusion	Information	ES	8.3M records	VCDB
2020-08-14	Global Tel Link	Error / misconfiguration	Information	US	300k records	VCDB
2020-08-01	SSL247	Error / misconfiguration	Information	GB-LND, GB	350k records	VCDB
2020-08-01	Telstra	Hacking / intrusion	Information	AU	—	VCDB
2020-07-21	Promo.com	Hacking / intrusion	Information	PA, US	22.0M records	VCDB
2020-07-16	utahgunexchange	Hacking / intrusion	Information	UT, US	195k records	VCDB
2020-07-01	Dunzo	Hacking / intrusion	Information	IN	3.4M records	VCDB
2020-07-01	Telecom Argentina	Ransomware	Information	AR	—	VCDB
2020-07-01	Twitter	Hacking / intrusion	Information	CA, US	—	VCDB
2020-06-19	Oracle Corporation	Error / misconfiguration	Information	CA, US	1.0B records	VCDB
2020-06-19	Unnamed organisation	Unknown	Information	Unknown	3.4M records	VCDB
2020-06-01	MasMovil	Ransomware	Information	ES	—	VCDB
2020-05-31	mycastingfile.com	Error / misconfiguration	Information	LA, US	260k records	VCDB
2020-05-14	MyBudget	Ransomware	Information	AU	13k records	VCDB
2020-05-01	Blackbaud	Ransomware	Information	SC, US	1.6M records	VCDB
2020-05-01	Jio	Error / misconfiguration	Information	IN	—	VCDB
2020-05-01	Mathways	Hacking / intrusion	Information	PA, US	25.0M records	VCDB
2020-05-01	MobiFriends Solutions	Hacking / intrusion	Information	ES	3.5M records	VCDB
2020-04-01	SeaChange	Ransomware	Information	WA, US	—	VCDB
2020-03-01	Comcast	Error / misconfiguration	Information	PA, US	200k records	VCDB
2020-03-01	Vertafore	Error / misconfiguration	Information	FL, US	27.7M records	VCDB
2020-02-02	Unnamed organisation	Error / misconfiguration	Information	GB	8.0M records	VCDB
2020-02-01	Bretagne Télécom	Ransomware	Information	FR	—	VCDB
2020-02-01	Covve	Error / misconfiguration	Information	CY	23.0M records	VCDB
2020-02-01	Le Figaro	Error / misconfiguration	Information	FR	7.4B records	VCDB
2020-01-01	AccQData	Error / misconfiguration	Information	FL, US	—	VCDB
2020-01-01	Activision	Hacking / intrusion	Information	CA, US	—	VCDB
2020-01-01	Aptoide	Hacking / intrusion	Information	PT	20.0M records	VCDB
2020-01-01	Boy Genius Report	Hacking / intrusion	Information	IN	—	VCDB
2020-01-01	Cense	Error / misconfiguration	Information	NY, US	2.5M records	VCDB
2020-01-01	Centre for Development of Imaging Technology	Error / misconfiguration	Information	IN	—	VCDB
2020-01-01	Checkpeople.com	Error / misconfiguration	Information	NY, US	56.3M records	VCDB
2020-01-01	Clubilion	Error / misconfiguration	Information	US	—	VCDB
2020-01-01	Comcast	Error / misconfiguration	Information	PA, US	1.5B records	VCDB
2020-01-01	Dreamhost	Error / misconfiguration	Information	US	851.0M records	VCDB
2020-01-01	Key Ring	Error / misconfiguration	Information	US-TX, US	14.0M records	VCDB
2020-01-01	Kinoapp	Error / misconfiguration	Information	FR	42.0M records	VCDB
2020-01-01	Mailfire	Error / misconfiguration	Information	CY	100k records	VCDB
2020-01-01	Netsentinal	Hacking / intrusion	Information	TX, US	—	VCDB
2020-01-01	PlutoTV	Hacking / intrusion	Information	CA, US	3.2M 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.