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

112 incidents match, newest first.

Date	Organisation	Type of attack	Sector	Where	Affected	Source
2025-08-31	Federal Express	Hacking / intrusion	Transportation	TN, US	—	VCDB
2025-04-07	Aeromexico	Hacking / intrusion	Transportation	MX	—	VCDB
2025-03-09	UPS	Hacking / intrusion	Transportation	GA, US	—	VCDB
2025-01-05	Instacart	Hacking / intrusion	Transportation	CA, US	—	VCDB
2023-06-01	Allegiant Air	Ransomware	Transportation	NV, US	—	VCDB
2023-06-01	American Airlines	Ransomware	Transportation	TX, US	—	VCDB
2021-05-01	Colonial Pipeline	Ransomware	Transportation	GA, US	—	VCDB
2021-05-01	Colonial Pipeline	Ransomware	Transportation	GA, US	—	VCDB
2021-04-01	ParkMobile	Hacking / intrusion	Transportation	US	21.0M records	VCDB
2021-01-01	CityBee	Hacking / intrusion	Transportation	LT	110k records	VCDB
2020-11-01	Americold	Ransomware	Transportation	US	—	VCDB
2020-10-19	Société de transport de Montréal	Ransomware	Transportation	QC, CA	—	VCDB
2020-08-01	iVoy	Hacking / intrusion	Transportation	MX	—	VCDB
2020-06-01	VT San Antonio Aerospace	Ransomware	Transportation	TX, US	—	VCDB
2020-05-14	CDEC Express	Hacking / intrusion	Transportation	RU	9.0M records	VCDB
2020-04-01	Holland America Cruise Lines	Error / misconfiguration	Transportation	CA	—	VCDB
2020-03-07	Foodmandu	Hacking / intrusion	Transportation	NP	50k records	VCDB
2020-01-01	Air India	Insider misuse	Transportation	IN	1 records	VCDB
2019-10-17	EasyJet	Hacking / intrusion	Transportation	GB	9.0M records	VCDB
2019-09-01	TAROM	Insider misuse	Transportation	RO	22 records	VCDB
2019-06-21	Southeastern Pennsylvania Transportation Authority	Malware	Transportation	PA, US	761 records	VCDB
2019-04-18	TAP30	Error / misconfiguration	Transportation	IR	1.5M records	VCDB
2018-07-24	China Ocean Shipping Company	Ransomware	Transportation	CN	—	VCDB
2018-03-01	Cathay Pacific	Hacking / intrusion	Transportation	HK	9.5M records	VCDB
2018-01-14	Careem	Hacking / intrusion	Transportation	AE	14.6M records	VCDB
2018-01-01	DriveHer	Error / misconfiguration	Transportation	CA	—	VCDB
2018-01-01	GoAir	Insider misuse	Transportation	IN	—	VCDB
2018-01-01	Thomas Cook Airlines	Hacking / intrusion	Transportation	Unknown	—	VCDB
2018-01-01	United States Post Office	Theft or loss	Transportation	TN, US	—	VCDB
2018-01-01	Unnamed organisation	Malware	Transportation	US	—	VCDB
2018-01-01	Unnamed organisation	Malware	Transportation	US	—	VCDB
2018-01-01	Unnamed organisation	Ransomware	Transportation	US	—	VCDB
2018-01-01	Unnamed organisation	Ransomware	Transportation	US	—	VCDB
2018-01-01	Unnamed organisation	Malware	Transportation	US	—	VCDB
2017-11-01	Fasten	Error / misconfiguration	Transportation	MA, US	1.0M records	VCDB
2017-08-01	Allied Irish Banks	Error / misconfiguration	Transportation	IE	550 records	VCDB
2017-07-01	WestJet	Hacking / intrusion	Transportation	CA	—	VCDB
2017-05-31	Clarkson PLC	Ransomware	Transportation	AU	—	VCDB
2017-03-10	Paratransit Services	Phishing / social engineering	Transportation	US	—	VCDB
2017-02-01	Norwalk Transit	Insider misuse	Transportation	US	—	VCDB
2017-01-01	Flight Centre	Error / misconfiguration	Transportation	AU	—	VCDB
2017-01-01	Perth Airport	Hacking / intrusion	Transportation	AU	—	VCDB
2016-10-01	Uber	Hacking / intrusion	Transportation	CA, US	57.0M records	VCDB
2016-08-01	Roehl Transport	Insider misuse	Transportation	WI, US	—	VCDB
2016-06-08	Air India	Hacking / intrusion	Transportation	IN	44 records	VCDB
2016-05-09	GetME	Error / misconfiguration	Transportation	TX, US	500 records	VCDB
2016-03-18	Landstar System Inc	Phishing / social engineering	Transportation	FL, US	1,362 records	VCDB
2016-01-24	Uber	Error / misconfiguration	Transportation	CA, US	1 records	VCDB
2016-01-20	Wiener Linien	Error / misconfiguration	Transportation	AT	200 records	VCDB
2015-11-10	Victoria's Metro Trains	Error / misconfiguration	Transportation	AU	—	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.