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
Infostealer logs5
Credential compilation (no single victim)5
Theft or loss4
Error / misconfiguration1

Hacking / intrusion792
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 / intrusion792
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	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
2016-02-01	Leet.cc	Hacking / intrusion	Information	CA, US	6.1M records	VCDB
2016-02-01	Leet.cc	Hacking / intrusion	Information	Unknown	6.1M records	VCDB
2016-02-01	Time Warner Cable Inc	Hacking / intrusion	Information	NY, US	4,191 records	VCDB
2016-02-01	Verticalscope.com	Hacking / intrusion	Information	CA	25.0M records	VCDB
2016-02-01	Weebly	Hacking / intrusion	Information	CA, US	43.4M records	VCDB
2016-01-22	Microsoft Corp	Hacking / intrusion	Information	WA, US	—	VCDB
2016-01-22	Telstra	Error / misconfiguration	Information	AU	1 records	VCDB
2016-01-01	2degrees NZ Ltd	Error / misconfiguration	Information	NZ-AUK, NZ	1 records	VCDB
2016-01-01	ClixSense	Hacking / intrusion	Information	NC, US	6.6M records	VCDB
2016-01-01	Crystal Web's	Hacking / intrusion	Information	ZA	5,400 records	VCDB
2016-01-01	Earbits	Error / misconfiguration	Information	US	325k records	VCDB
2016-01-01	Friend Finder Network	Hacking / intrusion	Information	FL, US	412.0M records	VCDB
2016-01-01	FriendFinder Networks Inc	Hacking / intrusion	Information	CA, US	412.0M records	VCDB
2016-01-01	Myspace	Hacking / intrusion	Information	US	360.0M records	VCDB
2016-01-01	NU.nl	Hacking / intrusion	Information	NL	—	VCDB
2016-01-01	PhotoBucket	Hacking / intrusion	Information	CO, US	1.9M records	VCDB
2016-01-01	PwnedList	Hacking / intrusion	Information	US	—	VCDB
2016-01-01	QIP.ru	Hacking / intrusion	Information	RU	33.4M records	VCDB
2016-01-01	Quattro Global Services Private Limited	Insider misuse	Information	IN	—	VCDB
2016-01-01	Rosebutt Board	Hacking / intrusion	Information	Unknown	107k records	VCDB
2016-01-01	T-Mobile	Insider misuse	Information	CZ	1.5M records	VCDB
2016-01-01	Talkspace	Error / misconfiguration	Information	US	18 records	VCDB
2016-01-01	Yahoo! Inc	Hacking / intrusion	Information	CA, US	500.0M records	VCDB
2016-01-01	xHamster	Hacking / intrusion	Information	CY	380k records	VCDB
2015-12-31	British Broadcasting Corporation	Hacking / intrusion	Information	GB	—	VCDB
2015-12-25	Valve Corporation	Hacking / intrusion	Information	WA, US	34k records	VCDB
2015-12-25	Verizon	Hacking / intrusion	Information	US	1 records	VCDB
2015-12-24	Electronic Arts Inc	Hacking / intrusion	Information	CA, US	—	VCDB
2015-12-14	Moonfruit	Hacking / intrusion	Information	GB	—	VCDB
2015-12-14	NIC.tr	Hacking / intrusion	Information	TR	—	VCDB
2015-12-10	Disqus	Hacking / intrusion	Information	CA, US	—	VCDB
2015-12-01	Vixlet	Error / misconfiguration	Information	CA, US	377k records	VCDB
2015-12-01	Yellow New Zealand	Error / misconfiguration	Information	NZ	—	VCDB
2015-11-01	Kromtech Alliance Corp.	Hacking / intrusion	Information	DE	13.0M records	VCDB
2015-11-01	LinkedIn	Hacking / intrusion	Information	CA, US	—	VCDB
2015-10-20	California Department of Motor Vehicles	Insider misuse	Information	CA, US	—	VCDB
2015-10-03	Gyft	Hacking / intrusion	Information	CA, US	—	VCDB
2015-10-01	Peebles Media Group	Phishing / social engineering	Information	GB	—	VCDB
2015-09-01	Faithless	Hacking / intrusion	Information	GB	18k records	VCDB
2015-09-01	Whalerock Industries	Hacking / intrusion	Information	CA, US	600k records	VCDB
2015-08-13	Web.com	Hacking / intrusion	Information	FL, US	93k records	VCDB
2015-08-09	Time Warner Cable Inc	Hacking / intrusion	Information	NY, US	—	VCDB
2015-07-05	Hacking Team	Hacking / intrusion	Information	IT	—	VCDB
2015-07-01	WXXR	Unknown	Information	IN, US	—	VCDB
2015-06-08	Assyrian International News Agency	Hacking / intrusion	Information	Unknown	—	VCDB
2015-05-26	Cloud Imperium Games	Error / misconfiguration	Information	CA, US	48 records	VCDB
2015-05-01	FriendFinder Networks Inc	Hacking / intrusion	Information	FL, US	3.5M records	VCDB
2015-05-01	Times Internet	Hacking / intrusion	Information	IN	12.5M records	VCDB
2015-04-20	Strategic Analysis	Hacking / intrusion	Information	VA, US	—	VCDB
2015-04-08	SendGrid	Phishing / social engineering	Information	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 20:29 UTC.