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; 473 breaches reported to HHS
Material incidents, US listed firms: 23; 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 sectorHealthcare748 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 / intrusion793
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 / intrusion793
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 / intrusion793
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	681	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 (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

805 incidents match, newest first.

Date	Organisation	Type of attack	Sector	Where	Affected	Source
2013-01-01	Kinoptic	Error / misconfiguration	Information	US	198k records	VCDB
2013-01-01	Microsoft	Malware	Information	WA, US	—	VCDB
2013-01-01	NBC Universal, Inc.	Hacking / intrusion	Information	US	—	VCDB
2013-01-01	NBC.com	Malware	Information	NY, US	—	VCDB
2013-01-01	Naver	Hacking / intrusion	Information	KR	25.0M records	VCDB
2013-01-01	New York Times	Hacking / intrusion	Information	NY, US	—	VCDB
2013-01-01	Nexon North America	Hacking / intrusion	Information	KR	24.0M records	VCDB
2013-01-01	Numbericable	Phishing / social engineering	Information	FR	6,000 records	VCDB
2013-01-01	OVH	Hacking / intrusion	Information	FR	—	VCDB
2013-01-01	OpenX	Hacking / intrusion	Information	CA, US	—	VCDB
2013-01-01	Plateau	Hacking / intrusion	Information	NM, US	7,500 records	VCDB
2013-01-01	PocketGPSWorld.com	Unknown	Information	GB	—	VCDB
2013-01-01	Puthiyathalaimurai	Hacking / intrusion	Information	IN	—	VCDB
2013-01-01	RentCanada	Error / misconfiguration	Information	CA	12 records	VCDB
2013-01-01	RentPath, Inc. (Primedia)	Theft or loss	Information	GA, US	56k records	VCDB
2013-01-01	Reputations.com	Hacking / intrusion	Information	CA, US	—	VCDB
2013-01-01	Scribd	Hacking / intrusion	Information	CA, US	1.0M records	VCDB
2013-01-01	Scribd	Hacking / intrusion	Information	CA, US	100k records	VCDB
2013-01-01	Sebastian Enterprises, Inc.	Hacking / intrusion	Information	CA, US	—	VCDB
2013-01-01	SodaHead.com	Hacking / intrusion	Information	CA, US	—	VCDB
2013-01-01	Sony Music	Hacking / intrusion	Information	IT	41k records	VCDB
2013-01-01	Sun TV	Hacking / intrusion	Information	IN	—	VCDB
2013-01-01	Sunrise Atelier, Inc	Hacking / intrusion	Information	NY, US	—	VCDB
2013-01-01	Swisscom AG	Theft or loss	Information	CH	—	VCDB
2013-01-01	Swisscom AG	Theft or loss	Information	CH	—	VCDB
2013-01-01	TerraCom	Insider misuse	Information	MO, US	—	VCDB
2013-01-01	Time Magazine	Hacking / intrusion	Information	US	—	VCDB
2013-01-01	Tinder	Error / misconfiguration	Information	NY, US	—	VCDB
2013-01-01	Total System Services Inc.	Unknown	Information	CA	—	VCDB
2013-01-01	Tumblr	Hacking / intrusion	Information	US	65.5M records	VCDB
2013-01-01	Twitter	Hacking / intrusion	Information	CA, US	250k records	VCDB
2013-01-01	Ubisoft Entertainment SA	Hacking / intrusion	Information	FR	58.0M records	VCDB
2013-01-01	Undead Labs	Hacking / intrusion	Information	US	—	VCDB
2013-01-01	Verizon Communications Inc.	Hacking / intrusion	Information	NJ, US	—	VCDB
2013-01-01	Verizon Communications Inc.	Error / misconfiguration	Information	NJ, US	—	VCDB
2013-01-01	Viber	Hacking / intrusion	Information	IL	—	VCDB
2013-01-01	Visionstream PTY Limited	Phishing / social engineering	Information	AU	—	VCDB
2013-01-01	Vodafone	Hacking / intrusion	Information	IS	77k records	VCDB
2013-01-01	Ziggo B.V.	Error / misconfiguration	Information	NL	40k records	VCDB
2013-01-01	github.com	Hacking / intrusion	Information	US	—	VCDB
2013-01-01	http://gabonactu.com/	Hacking / intrusion	Information	GA	117 records	VCDB
2013-01-01	nic.lk	Hacking / intrusion	Information	LK	—	VCDB
2013-01-01	notebookreview.com	Hacking / intrusion	Information	US	—	VCDB
2013-01-01	websolutions.it	Hacking / intrusion	Information	IT	—	VCDB
2012-12-23	Lohud.com	Insider misuse	Information	NY, US	—	VCDB
2012-11-23	Fundtech Corporation	Hacking / intrusion	Information	NY, US	—	VCDB
2012-11-22	IHS Inc	Hacking / intrusion	Information	CO, US	—	VCDB
2012-11-06	SourceFire	Theft or loss	Information	MD, US	—	VCDB
2012-11-01	netlog	Unknown	Information	BE	49.0M records	VCDB
2012-10-01	Advanced Data Processing, Inc.	Insider misuse	Information	FL, 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 2026-10-14 01:55 UTC.