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

164 incidents match, newest first.

Date	Organisation	Type of attack	Sector	Where	Affected	Source
2025-08-17	Marriott	Hacking / intrusion	Accommodation & Food	MD, US	—	VCDB
2025-06-30	KFC	Hacking / intrusion	Accommodation & Food	TX, US	—	VCDB
2025-06-27	McDonalds	Hacking / intrusion	Accommodation & Food	IL, US	—	VCDB
2023-06-01	Raddison Americas	Ransomware	Accommodation & Food	MN, US	—	VCDB
2023-06-01	Radisson Hotels	Ransomware	Accommodation & Food	MN, US	—	VCDB
2021-01-16	Nevada Restaurant Services	Malware	Accommodation & Food	NV, US	—	VCDB
2021-01-01	Unnamed organisation	Insider misuse	Accommodation & Food	ZA	—	VCDB
2020-01-01	Chowbus	Hacking / intrusion	Accommodation & Food	IL, US	400k records	VCDB
2020-01-01	Marriott	Hacking / intrusion	Accommodation & Food	MD, US	5.2M records	VCDB
2019-10-01	Queer Chart	Error / misconfiguration	Accommodation & Food	CA, US	—	VCDB
2019-08-01	MGM	Hacking / intrusion	Accommodation & Food	NV, US	10.7M records	VCDB
2019-07-15	PrimoHoagies Franchising, Inc.	Hacking / intrusion	Accommodation & Food	NJ, US	—	VCDB
2019-07-11	Gekko Group	Error / misconfiguration	Accommodation & Food	FR	—	VCDB
2019-07-02	choice hotels	Hacking / intrusion	Accommodation & Food	US	700k records	VCDB
2019-03-01	B.D. Riley's Irish Pub	Insider misuse	Accommodation & Food	TX, US	12 records	VCDB
2019-03-01	McDonald's	Insider misuse	Accommodation & Food	MD, US	14 records	VCDB
2019-02-01	Taco Bell	Insider misuse	Accommodation & Food	US-CA, US	—	VCDB
2019-01-01	Miccosukee Casino	Insider misuse	Accommodation & Food	FL, US	—	VCDB
2019-01-01	Ruby Tuesday	Insider misuse	Accommodation & Food	FL, US	25 records	VCDB
2019-01-01	Unnamed organisation	Hacking / intrusion	Accommodation & Food	TH	1,000 records	VCDB
2018-11-09	Brewhouse and Kitchen	Error / misconfiguration	Accommodation & Food	GB	17k records	VCDB
2018-07-05	Unidentified Hotel	Ransomware	Accommodation & Food	IN	—	VCDB
2018-05-23	Earl Enterprises	Malware	Accommodation & Food	FL, US	2.0M records	VCDB
2018-05-19	PDQ	Malware	Accommodation & Food	FL, US	—	VCDB
2018-03-15	Collins Foods	Phishing / social engineering	Accommodation & Food	AU-QLD, AU	—	VCDB
2018-01-01	Huddle House	Malware	Accommodation & Food	US	300k records	VCDB
2018-01-01	Marriott	Hacking / intrusion	Accommodation & Food	MD, US	383.0M records	VCDB
2017-12-21	Subway	Error / misconfiguration	Accommodation & Food	ENG, GB	181 records	VCDB
2017-10-24	Green Crush	Insider misuse	Accommodation & Food	CA, US	1 records	VCDB
2017-10-01	Revolution Event Design & Production	Insider misuse	Accommodation & Food	US	—	VCDB
2017-09-22	Wendy's	Theft or loss	Accommodation & Food	US	—	VCDB
2017-09-01	Burgerville	Malware	Accommodation & Food	WA, US	—	VCDB
2017-09-01	Graton Resort and Casino	Error / misconfiguration	Accommodation & Food	US	—	VCDB
2017-09-01	Pro Move	Insider misuse	Accommodation & Food	GA, US	—	VCDB
2017-09-01	Sonic Drive-in	Malware	Accommodation & Food	US	—	VCDB
2017-07-27	McDonald's	Theft or loss	Accommodation & Food	NY, US	—	VCDB
2017-03-18	Hyatt Hotels	Malware	Accommodation & Food	US	—	VCDB
2017-01-01	Taco Bell	Insider misuse	Accommodation & Food	US	—	VCDB
2016-11-25	Greene King	Error / misconfiguration	Accommodation & Food	GB	2,000 records	VCDB
2016-11-04	Casino Rama	Hacking / intrusion	Accommodation & Food	CA	—	VCDB
2016-10-25	Arby's	Malware	Accommodation & Food	US	355k records	VCDB
2016-10-20	Blue Moon Deli	Theft or loss	Accommodation & Food	NY, US	—	VCDB
2016-09-17	Best Western	Malware	Accommodation & Food	CA-BC, CA	—	VCDB
2016-09-05	Noble House Hotels & Resorts	Malware	Accommodation & Food	WY, US	—	VCDB
2016-09-01	Mr. Chow	Ransomware	Accommodation & Food	CA, US	—	VCDB
2016-08-01	McDonald's Corp	Insider misuse	Accommodation & Food	IN, US	100 records	VCDB
2016-08-01	Sheraton	Insider misuse	Accommodation & Food	TN, US	—	VCDB
2016-06-01	Maryland Live Casino	Insider misuse	Accommodation & Food	MD, US	—	VCDB
2016-05-15	Wendy's Co/The	Malware	Accommodation & Food	OH, US	—	VCDB
2016-05-05	Popeyes	Malware	Accommodation & Food	TX, 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 15:28 UTC.