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

438 incidents match, newest first.

Date	Organisation	Type of attack	Sector	Where	Affected	Source
2019-01-01	Unnamed organisation	Hacking / intrusion	Professional Services	US	—	VCDB
2019-01-01	Unnamed organisation	Malware	Professional Services	RU	—	VCDB
2019-01-01	Verifications IO LLC	Error / misconfiguration	Professional Services	DE, US	808.5M records	VCDB
2018-12-01	Tivit	Malware	Professional Services	BR-SP, BR	—	VCDB
2018-10-28	QinetiQ	Insider misuse	Professional Services	GB	—	VCDB
2018-08-10	Association of National Advertisers	Hacking / intrusion	Professional Services	DC, US	1 records	VCDB
2018-07-23	Dadar, India City Accountant	Ransomware	Professional Services	IN	—	VCDB
2018-07-01	8fit	Hacking / intrusion	Professional Services	DE	20.0M records	VCDB
2018-07-01	Level One Robotics and Controls	Error / misconfiguration	Professional Services	CA	47k records	VCDB
2018-07-01	RoboCent	Error / misconfiguration	Professional Services	VA, US	2,584 records	VCDB
2018-06-28	Gentoo Github	Hacking / intrusion	Professional Services	US	—	VCDB
2018-05-28	San Francisco's Institute on Aging	Hacking / intrusion	Professional Services	CA, US	3,908 records	VCDB
2018-05-01	Human Longevity, Inc	Insider misuse	Professional Services	CA, US	—	VCDB
2018-04-20	ComplyRight	Hacking / intrusion	Professional Services	FL, US	7,600 records	VCDB
2018-03-29	MedEvolve	Error / misconfiguration	Professional Services	AR, US	—	VCDB
2018-02-22	Independent Accountant	Ransomware	Professional Services	IN	—	VCDB
2018-01-01	51Jobs.com	Hacking / intrusion	Professional Services	CN	1.9M records	VCDB
2018-01-01	Bayer	Malware	Professional Services	NW, DE	—	VCDB
2018-01-01	HealthEngine	Insider misuse	Professional Services	AU	—	VCDB
2018-01-01	Inmagine Group	Hacking / intrusion	Professional Services	US	8.3M records	VCDB
2018-01-01	New Zealand Law Society	Error / misconfiguration	Professional Services	NZ	1 records	VCDB
2018-01-01	SportsMEDIA Technology Corp	Insider misuse	Professional Services	NC, US	—	VCDB
2018-01-01	The Apollo Company	Hacking / intrusion	Professional Services	CA, US	200.0M records	VCDB
2018-01-01	mindbody	Error / misconfiguration	Professional Services	US	113.0M records	VCDB
2017-12-01	Capita	Error / misconfiguration	Professional Services	GB	—	VCDB
2017-12-01	Idexx	Phishing / social engineering	Professional Services	ME, US	—	VCDB
2017-11-29	Teal, Becker & Chiaramonte, CPAs	Ransomware	Professional Services	NY, US	50 records	VCDB
2017-10-01	Chemours	Insider misuse	Professional Services	DE, US	—	VCDB
2017-09-27	DXC Technologies	Hacking / intrusion	Professional Services	US	—	VCDB
2017-09-01	SVR Tracking	Error / misconfiguration	Professional Services	US	—	VCDB
2017-07-08	Redwood Origins Ltd.	Error / misconfiguration	Professional Services	GB	—	VCDB
2017-07-04	Avanti Markets	Malware	Professional Services	WA, US	—	VCDB
2017-07-01	Nuance	Ransomware	Professional Services	US	—	VCDB
2017-05-19	SwiftQueue	Hacking / intrusion	Professional Services	US	1.2M records	VCDB
2017-02-01	Unnamed organisation	Insider misuse	Professional Services	NJ, US	71 records	VCDB
2017-01-31	Akin Gump Strauss Hauer & Feld	Insider misuse	Professional Services	US-CA, US	1 records	VCDB
2017-01-01	Mandiant	Hacking / intrusion	Professional Services	VA, US	—	VCDB
2017-01-01	Apollo	Hacking / intrusion	Professional Services	CA, US	10.0M records	VCDB
2017-01-01	Deep Root Analytics	Error / misconfiguration	Professional Services	US	198.0M records	VCDB
2017-01-01	Defense Point Security, LLC	Phishing / social engineering	Professional Services	VA, US	—	VCDB
2017-01-01	Groupize	Error / misconfiguration	Professional Services	MA, US	—	VCDB
2017-01-01	July Systems	Error / misconfiguration	Professional Services	US	10k records	VCDB
2017-01-01	LaunchPoint Ventures	Insider misuse	Professional Services	US	19k records	VCDB
2017-01-01	M.G.A.R. Ltd	Error / misconfiguration	Professional Services	IL	1.0M records	VCDB
2017-01-01	Superion (Click2Gov) Now DBA Central Square Technologies	Hacking / intrusion	Professional Services	FL, US	—	VCDB
2017-01-01	iMax Medical Billing	Error / misconfiguration	Professional Services	OH, US	1,600 records	VCDB
2016-11-03	Novopay	Error / misconfiguration	Professional Services	NZ	530 records	VCDB
2016-11-01	Zendesk	Hacking / intrusion	Professional Services	CA, US	10k records	VCDB
2016-10-11	Manitoba Finance	Error / misconfiguration	Professional Services	CA	6 records	VCDB
2016-10-01	Concentrix Mums	Error / misconfiguration	Professional Services	GB	100 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 17:10 UTC.