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
2026-03-01	Networking Technology Inc (RXNT)	Hacking / intrusion	Information	MD, US	—	VCDB
2025-12-01	Unnamed organisation	Hacking / intrusion	Information	AU	—	VCDB
2025-09-06	Qualys	Hacking / intrusion	Information	CA, US	—	VCDB
2025-09-03	CyberArk	Hacking / intrusion	Information	IL	—	VCDB
2025-09-03	Tenable	Hacking / intrusion	Information	MD, US	—	VCDB
2025-09-03	Workiva	Hacking / intrusion	Information	IA, US	—	VCDB
2025-09-02	Zscaler	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-28	Lucid	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-26	Elastic	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-23	Jfrog	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-23	Miljödata	Ransomware	Information	SE	—	VCDB
2025-08-22	"AppFolio, Inc."	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-22	BeyondTrust	Hacking / intrusion	Information	GA, US	—	VCDB
2025-08-21	Heap	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-20	Pagerduty	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-13	Fastly	Hacking / intrusion	Information	CA, US	—	VCDB
2025-08-08	Cato Networks	Hacking / intrusion	Information	IL	—	VCDB
2025-08-07	Houghton Mifflin Harcourt (HMH)	Hacking / intrusion	Information	MA, US	—	VCDB
2025-08-04	Intradev	Hacking / intrusion	Information	GB	—	VCDB
2025-08-01	ContentSquare	Hacking / intrusion	Information	FR	—	VCDB
2025-05-25	DataPost	Ransomware	Information	SG	146 records	VCDB
2025-05-02	HBO Max	Hacking / intrusion	Information	NY, US	—	VCDB
2025-01-05	Disney/Hulu	Hacking / intrusion	Information	CA, US	—	VCDB
2024-12-25	Unnamed organisation	Hacking / intrusion	Information	US	—	VCDB
2024-12-13	Unnamed organisation	Hacking / intrusion	Information	IT	—	VCDB
2024-11-22	Softway Medical Group	Hacking / intrusion	Information	FR	—	VCDB
2024-11-21	Blue Yonder	Ransomware	Information	AZ, US	—	VCDB
2024-11-06	Unnamed Partner	Hacking / intrusion	Information	FI	—	VCDB
2024-02-23	Epic Systems	Insider misuse	Information	WI, US	—	VCDB
2023-06-01	American Multi Cinema Inc aka AMC Theatres	Ransomware	Information	KS, US	—	VCDB
2023-06-01	Ciena	Ransomware	Information	MD, US	—	VCDB
2023-06-01	Paycom Software	Ransomware	Information	US	—	VCDB
2023-06-01	Warner Bros	Ransomware	Information	CA, US	—	VCDB
2023-06-01	Xilinx	Ransomware	Information	CA, US	—	VCDB
2022-05-01	Mangaton	Hacking / intrusion	Information	CN	23.0M records	VCDB
2022-01-01	Unknown Contractor	Hacking / intrusion	Information	CH	512k records	VCDB
2021-08-01	T-Mobile	Hacking / intrusion	Information	WA, US	40.0M records	VCDB
2021-07-04	Respawn	Hacking / intrusion	Information	CA, US	—	VCDB
2021-07-01	Kaseya	Ransomware	Information	FL, US	—	VCDB
2021-06-01	AMT games	Error / misconfiguration	Information	CN	5.6M records	VCDB
2021-05-30	Nucleus Software Exports	Ransomware	Information	IN	—	VCDB
2021-05-13	Epik	Hacking / intrusion	Information	US	—	VCDB
2021-03-01	Swarmarket	Hacking / intrusion	Information	Unknown	60k records	VCDB
2021-02-23	Zee Entertainment Enterprises	Error / misconfiguration	Information	IN	9.0M records	VCDB
2021-01-01	Accellion	Ransomware	Information	CA, US	5.8M records	VCDB
2021-01-01	Airtel	Hacking / intrusion	Information	IN	2.5M records	VCDB
2021-01-01	Commport Communications	Ransomware	Information	CA	950k records	VCDB
2021-01-01	Gab	Hacking / intrusion	Information	US	15k records	VCDB
2021-01-01	Raychat.io	Error / misconfiguration	Information	IR	267.0M records	VCDB
2021-01-01	Twitch	Hacking / intrusion	Information	CA, 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 2026-10-13 17:10 UTC.