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

Hacking / intrusion792
Data breach (cause not stated)150
Unauthorised access or disclosure60
Ransomware9
Infostealer logs5
Credential compilation (no single victim)5
Theft or loss4
Error / misconfiguration1

Hacking / intrusion792
Data breach (cause not stated)150
Unauthorised access or disclosure60
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	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
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 (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
2018-01-01	Quora	Hacking / intrusion	Information	CA, US	100k records	VCDB
2018-01-01	Regency Theatres	Hacking / intrusion	Information	US	—	VCDB
2018-01-01	Riot Games	Hacking / intrusion	Information	Unknown	—	VCDB
2018-01-01	VirMedica	Error / misconfiguration	Information	MA, US	40k records	VCDB
2018-01-01	Zcall	Error / misconfiguration	Information	KR	26.0M records	VCDB
2018-01-01	adapt.io	Error / misconfiguration	Information	Unknown	9.0M records	VCDB
2018-01-01	flightradar24	Hacking / intrusion	Information	AT	—	VCDB
2018-01-01	voxox	Error / misconfiguration	Information	US	26.0M records	VCDB
2017-12-01	Ai.type	Error / misconfiguration	Information	IL	31.3M records	VCDB
2017-12-01	Alteryx	Error / misconfiguration	Information	US	12.0M records	VCDB
2017-12-01	Timehop	Hacking / intrusion	Information	US	21.0M records	VCDB
2017-11-10	TIO Networks	Hacking / intrusion	Information	CA	1.6M records	VCDB
2017-11-01	Red Rose	Error / misconfiguration	Information	IE-D, IE	—	VCDB
2017-10-25	Alameda County libraries	Hacking / intrusion	Information	CA, US	—	VCDB
2017-10-04	Crunchyroll	Malware	Information	CA, US	—	VCDB
2017-10-01	DHI Group Inc	Hacking / intrusion	Information	NY, US	—	VCDB
2017-10-01	T Moble	Hacking / intrusion	Information	US	—	VCDB
2017-09-30	R6DB	Ransomware	Information	US	—	VCDB
2017-09-02	Canoe.ca	Hacking / intrusion	Information	CA	1.0M records	VCDB
2017-09-01	Instagram	Hacking / intrusion	Information	CA, US	6.0M records	VCDB
2017-09-01	Spartanburg (SC) County Public Libraries	Ransomware	Information	SC, US	—	VCDB
2017-08-30	Viacom	Error / misconfiguration	Information	US	—	VCDB
2017-08-01	Time Warner Cable	Error / misconfiguration	Information	US	—	VCDB
2017-08-01	Taringa	Hacking / intrusion	Information	AR	28.0M records	VCDB
2017-07-01	Daviess County Public Library i	Ransomware	Information	KY, US	—	VCDB
2017-07-01	MedRecords Distribution Association	Error / misconfiguration	Information	CA	1 records	VCDB
2017-06-01	Verelox	Insider misuse	Information	NL	—	VCDB
2017-05-18	Zomato	Hacking / intrusion	Information	IN	17.0M records	VCDB
2017-05-01	Bell Canada	Hacking / intrusion	Information	CA	1.9M records	VCDB
2017-05-01	Edmodo	Hacking / intrusion	Information	CA, US	77.0M records	VCDB
2017-04-15	schoolzilla	Error / misconfiguration	Information	CA, US	1.3M records	VCDB
2017-04-04	ask.com	Error / misconfiguration	Information	US	—	VCDB
2017-03-20	Wind Tre	Error / misconfiguration	Information	IT-MI, IT	5,118 records	VCDB
2017-03-01	Dracore Data Sciences	Error / misconfiguration	Information	ZA	2.2M records	VCDB
2017-03-01	MyBroadband	Error / misconfiguration	Information	ZA	30.0M records	VCDB
2017-03-01	Staminus Communications	Hacking / intrusion	Information	CA, US	—	VCDB
2017-02-01	Elance	Hacking / intrusion	Information	CA, US	1.3M records	VCDB
2017-01-21	Sundance Institute	Hacking / intrusion	Information	UT, US	—	VCDB
2017-01-01	8tracks	Hacking / intrusion	Information	US	18.0M records	VCDB
2017-01-01	AT&T	Hacking / intrusion	Information	US	—	VCDB
2017-01-01	Australian Broadcasting Corporation	Error / misconfiguration	Information	AU	—	VCDB
2017-01-01	Bell Lomax Moreton	Error / misconfiguration	Information	GB	—	VCDB
2017-01-01	Candid Board	Error / misconfiguration	Information	GB	—	VCDB
2017-01-01	Gannett	Phishing / social engineering	Information	VA, US	18k records	VCDB
2017-01-01	Hardware Zone	Hacking / intrusion	Information	SG	685k records	VCDB
2017-01-01	Minneapolis Star-Tribune	Malware	Information	MN, US	—	VCDB
2017-01-01	Reliance Jio	Hacking / intrusion	Information	IN	120.0M records	VCDB
2017-01-01	River City Media	Error / misconfiguration	Information	US	1.4B records	VCDB
2017-01-01	SterKinekor	Hacking / intrusion	Information	NZ	1.6M records	VCDB
2017-01-01	Unknown	Hacking / intrusion	Information	Unknown	—	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 18:47 UTC.