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
2015-04-01	MTN Swaiziland	Insider misuse	Information	SZ	—	VCDB
2015-04-01	Unknown	Unknown	Information	US	—	VCDB
2015-02-01	INTERCITY TELECOM LIMITED	Insider misuse	Information	GB	—	VCDB
2015-01-01	000Webhost	Hacking / intrusion	Information	AZ, US	13.0M records	VCDB
2015-01-01	Ancestry.com	Error / misconfiguration	Information	UT, US	300k records	VCDB
2015-01-01	Apple Computer	Malware	Information	CA, US	—	VCDB
2015-01-01	Bizmatics, Inc.	Malware	Information	CA, US	351k records	VCDB
2015-01-01	Comcast Corp	Phishing / social engineering	Information	TN, US	1,200 records	VCDB
2015-01-01	Comcast Corp	Hacking / intrusion	Information	PA, US	200k records	VCDB
2015-01-01	Comcast Corp	Error / misconfiguration	Information	CA, US	—	VCDB
2015-01-01	Easily.co.uk	Malware	Information	GB	—	VCDB
2015-01-01	G	Error / misconfiguration	Information	KR	43.0M records	VCDB
2015-01-01	GTAgaming.com	Hacking / intrusion	Information	US	30k records	VCDB
2015-01-01	HZone	Error / misconfiguration	Information	US	4,926 records	VCDB
2015-01-01	Hong Kong public library	Insider misuse	Information	HK	130 records	VCDB
2015-01-01	Infowars motion pictures and films	Hacking / intrusion	Information	US	50k records	VCDB
2015-01-01	Livestream	Hacking / intrusion	Information	NY, US	300k records	VCDB
2015-01-01	MetroPCS	Hacking / intrusion	Information	WA, US	—	VCDB
2015-01-01	NFOrce	Hacking / intrusion	Information	NL	—	VCDB
2015-01-01	NextBus	Hacking / intrusion	Information	CA, US	—	VCDB
2015-01-01	Pivotal	Phishing / social engineering	Information	CA, US	1,250 records	VCDB
2015-01-01	Securus	Insider misuse	Information	TX, US	70.0M records	VCDB
2015-01-01	Systema Software	Error / misconfiguration	Information	CA, US	1.5M records	VCDB
2015-01-01	TF1	Hacking / intrusion	Information	FR	1.9M records	VCDB
2015-01-01	Tunecore	Hacking / intrusion	Information	NY, US	—	VCDB
2015-01-01	Yandex NV	Insider misuse	Information	RU	—	VCDB
2015-01-01	online forums	Hacking / intrusion	Information	Unknown	—	VCDB
2014-12-06	Microsoft	Hacking / intrusion	Information	WA, US	—	VCDB
2014-11-25	Sony Pictures Entertainment Inc.	Malware	Information	CA, US	—	VCDB
2014-11-25	Sony Pictures Entertainment Inc.	Malware	Information	CA, US	47k records	VCDB
2014-11-01	Digital Extremes	Hacking / intrusion	Information	GB	776k records	VCDB
2014-09-01	Mozilla	Hacking / intrusion	Information	US	—	VCDB
2014-09-01	Yandex	Unknown	Information	RU	150k records	VCDB
2014-08-27	MagnaGamer	Hacking / intrusion	Information	JP	—	VCDB
2014-08-26	Google Inc	Hacking / intrusion	Information	CA, US	—	VCDB
2014-08-10	Kabel Germany	Theft or loss	Information	DE	—	VCDB
2014-08-01	Wenzhou Television Station	Hacking / intrusion	Information	CN	—	VCDB
2014-07-14	Cnet	Hacking / intrusion	Information	US	1.0M records	VCDB
2014-06-24	Microsoft Corp	Unknown	Information	WA, US	—	VCDB
2014-06-18	Sunday Times	Hacking / intrusion	Information	GB	—	VCDB
2014-06-11	Feedly	Hacking / intrusion	Information	US	—	VCDB
2014-06-11	Tweetdeck, Inc.	Hacking / intrusion	Information	CA, US	—	VCDB
2014-06-01	Just Yo	Hacking / intrusion	Information	CA, US	—	VCDB
2014-06-01	Russian Radio	Hacking / intrusion	Information	UA	—	VCDB
2014-05-14	Antiwar.com	Hacking / intrusion	Information	CA, US	—	VCDB
2014-05-03	Virgin Mobile (Australia) Pty Ltd	Error / misconfiguration	Information	NSW, AU	—	VCDB
2014-05-01	InfoTrax Systems	Hacking / intrusion	Information	UT, US	1.0M records	VCDB
2014-05-01	bit.ly	Unknown	Information	US	—	VCDB
2014-04-30	Kali Linux	Hacking / intrusion	Information	US	—	VCDB
2014-04-30	Neustar UltraDNS	Hacking / intrusion	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 21:15 UTC.