Article · Wikipedia archive · Last revised Jul 21, 2026

List of data breaches

This is a non-exhaustive list of reports about data breaches, using data compiled from various sources, including press reports, government news releases, and mainstream news articles. The list includes those involving the theft or compromise of 30,000 or more records, although many smaller breaches occur continually. Note that other sources compile more complete lists. Breaches of large organizations where the number of records is still unknown are also listed. In addition, the various methods used in the breaches are listed, with hacking being the most common.

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This is a non-exhaustive list of reports about data breaches, using data compiled from various sources, including press reports, government news releases, and mainstream news articles. The list includes those involving the theft or compromise of 30,000 or more records, although many smaller breaches occur continually. Note that other sources compile more complete lists.1 Breaches of large organizations where the number of records is still unknown are also listed. In addition, the various methods used in the breaches are listed, with hacking being the most common.

As a result of data breaches, it is estimated that in first half of 2018 alone, about 4.5 billion records were exposed.2 In 2019, a collection of 2.7 billion identity records, consisting of 774 million unique email addresses and 21 million unique passwords, was posted on the web for sale.3 In January 2024, a data breach dubbed the "mother of all breaches" was uncovered.4 Over 26 billion records, including some from Twitter, Adobe, Canva, LinkedIn, and Dropbox, were found in the database.56 No organization immediately claimed responsibility.7

List of data breaches involving a government or public entity

Government Agency Year Records Organization type Method Sources
United States United States Immigration and Customs Enforcement, United States Border Patrol 2026 Information of 4,500 employees allegedly leaked by a whistleblower in response to the killing of Renée Good. immigration Whistleblowing 8
Netherlands National Police Corps of the Netherlands 2024 63,000+ staff members data including names, email addresses, phone numbers police hacked 9
United Kingdom Transport for London 2024 5000+ Passengers data including home addresses, bank account details, unconfirmed number of Staff data leaked too Local Transport authority hacked 10
50 companies and government institutions Various 2022 6,400,000 various poor security 1112
California California Department of Corrections and Rehabilitation 2022 236,000 inmates personally identifiable information (PII) and protected health information (PHI) government CDCR denies any wrongdoing 13
India Indian Council of Medical Research 2023 815,000,000+, including Aadhaar IDs, passport details, names, phone numbers, addresses government hacked by pwn0001 14
Australia Australian Immigration Department 2015 G20 world leaders government accidentally published 15
Australia Australian National University 2019 19 years of data academic hacked 16
Sydney, Australia Western Sydney University 2024 7,500, including email accounts, SharePoint files, and the Microsoft Office 365 environment academic hacked 1718
Bangladesh Office of the Registrar General, Birth & Death Registration 2023 50,000,000+ government data leak due to security vulnerabilities 19
United Kingdom BBC 2024 25,290 employee pension records, including name, date of birth, home address, national insurance number public broadcasting hacked 2021
United Kingdom British Library 2023 unknown government ransomware 22
United Kingdom British National Party 2008 Records Politics 23
United Kingdom City and Hackney Teaching Primary Care Trust 2007 160,000 healthcare lost / stolen media 24
United Kingdom / Scotland NHS Dumfries and Galloway 2024 still unknown healthcare cyber attack 2526
Bulgaria Bulgarian National Revenue Agency 2019 over 5,000,000 government hacked 2728
California California Department of Child Support Services 2012 800,000 government lost / stolen media 2930
United States Central Intelligence Agency 2017 91 malware tools internal job 3132333435
Colorado, US Colorado Department of Health Care Policy & Financing 2010 105,470 healthcare lost / stolen computer 36
United States Consumer Financial Protection Bureau 2023 256,000 bureau poor security 37
United States Centers for Medicare & Medicaid Services 2018 75,000 healthcare hacked 38
South Korea Defense Integrated Data Center (South Korea) 2017 235 GB government, military hacked 39
United States Democratic National Committee 2016 19,252 political hacked 40
United States Department of Homeland Security 2016 30,000 government poor security 4142
Indonesia Directorate General of Immigration of Indonesia 2023 34,900,867 Government hacked and published 43
Indonesia Directorate General of Population and Civil Registration (Dukcapil) 2023 337,225,463 Government leaked and published 44
United Kingdom Driving Standards Agency 2007 3,000,000 government lost / stolen media 45
Ecuador ? 2019 20,800,000 records, including names, family members, financial and work data, civil registration data, car ownership data government poor security / misconfigured server 46
? Embassy Cables 2010 251,000 government inside job 47
England/Wales England and Wales Cricket Board 2024 43,299 government unknown 48
European Union European Central Bank 2014 unknown financial hacked 4950
United States FBI 2016 Records law enforcement hacked 515253
United States Federal Reserve Bank of Cleveland 2010 400,000 financial hacked 54
Florida Florida Department of Juvenile Justice 2013 100,000 government lost / stolen computer 55
Unknown Unknown 2020 201,000,000 personal and demographic data about residents and their properties of US Poor security 56
Greece ? 2012 9,000,000 government hacked 57
Singapore Health Sciences Authority 2019 808,000 healthcare poor security 58
Ireland Health Service Executive 2021 unknown healthcare unknown 59
London, UK Heathrow Airport 2017 2.5GB transport lost / stolen media 606162
United States Internal Revenue Service 2015 720,000 financial hacked 6364
Japan Japan Pension Service 2015 1,250,000 special public corporation hacked 65
Jefferson County, West Virginia ? 2008 1,600,000 government accidentally published 2966
Cedar Rapids, Iowa Kirkwood Community College 2013 125,000 academic hacked 5567
Massachusetts, US Massachusetts Executive Office of Labor and Workforce Development 2011 210,000, including names, Social Security numbers, employer identification numbers, emails, home addresses government hacked with a trojan 68
United States Medicaid 2012 780,000 government, healthcare hacked 29
Chile Ministry of Education 2008 6,000,000, including ID card numbers, addresses, telephone numbers academic records government hacked 6970
Chile Servicio Electoral de Chile (Servel) 2019 14,308,151, including names, addresses, tax ID numbers government misconfigured server 71
Shanghai, China Shanghai National Police Database 2022 1,000,000,000, including name, address, birthplace, national ID number, mobile number, all crime/case details government unsecured database 7273
Singapore Ministry of Health 2019 14,200 healthcare poor security/inside job 7475
Slovakia National Health Information Center (NCZI) of Slovakia 2020 391,250 healthcare poor security 76
Norway Norwegian Tax Administration 2008 3,950,000 government accidentally published 77
United States Office of Personnel Management 2015 21,500,000 government hacked 787980
Texas, US Office of the Texas Attorney General 2012 6,500,000 government accidentally published 81
United Kingdom Ofcom 2016 unknown telecom inside job 82
Columbus, Ohio Ohio State University 2010 760,000, including names, Social Security numbers, dates of birth, addresses academic hacked 83
Oregon Oregon Department of Transportation 2011 1,000,000, including names, addresses, dates of birth government hacked 8429
Various Pandora Papers 2021 85
Various Paradise Papers 2017 records 86
Philippines Commission on Elections 2016 55,000,000 government hacked 87
Philippines Various law enforcement agencies (Philippine National Police, National Bureau of Investigation, Bureau of Internal Revenue) 2023 1,279,437 government poor security 88
Puerto Rico Puerto Rico Department of Health 2010 515,000 healthcare hacked 89
Argentina RENAPER (Argentina)9091 2018 45,000,000 government poor security 9293
Russia Roscosmos 2022 handwritten forms, PDFs, spreadsheets, descriptions of lunar missions. aerospace hacked by v0g3lsec 94
Sakai City, Japan ? 2015 680,000 government inside job 95
San Francisco, California San Francisco Public Utilities Commission 2011 180,000 government hacked 96
New South Wales, AU Service NSW 2020 104,000 government hacked
United Kingdom Service Personnel and Veterans Agency (UK) 2008 50,500 government lost / stolen media 97
South Africa South Africa police 2013 16,000 government hacked 98
South Carolina, US South Carolina Department of Revenue 2012 6,400,000 healthcare inside job 8999100101
Stanford, California Stanford University 2008 72,000, including dates of birth, Social Security numbers, home addresses academic lost / stolen computer 102103
Texas, US ? 2011 3,500,000 government accidentally published 104
Syrian government (Syria Files) Various 2012 2,434,899 government hacked 105106
Texas Texas Lottery 2007 89,000+, including names, Social Security numbers, addresses, prize amounts government inside job 107
United States Tricare 2011 4,901,432, including Social Security numbers, addresses, phone numbers, clinical notes, laboratory tests, prescriptions military, healthcare lost / stolen computer 10889
United Kingdom UK Home Office 2008 84,000 government lost / stolen media 109
United Kingdom UK Ministry of Defence 2008 1,700,000 government lost / stolen media 110
United Kingdom United Kingdom parliamentary expenses scandal 2009 Records government
United Kingdom UK Revenue & Customs 2007 25,000,000 government lost / stolen media 111
United Nations ? 2019 unknown international hacked 112
United Nations ? 2021 unknown international hacked 113
Berkeley, California University of California, Berkeley 2009 160,000 academic hacked 114
Berkeley, California University of California, Berkeley 2016 80,000 academic hacked 115
College Park, Maryland University of Maryland, College Park 2014 300,000 academic hacked 116
Orange County, Florida University of Central Florida 2016 63,000 academic hacked 117
Miami, Florida University of Miami 2008 2,100,000 academic lost / stolen computer 118119120
Salt Lake City, Utah University of Utah Hospital & Clinics 2008 2,200,000 academic lost / stolen media 121
Milwaukee, Wisconsin University of Wisconsin–Milwaukee 2011 73,000 academic hacked 29
Shah Alam, Malaysia Universiti Teknologi MARA 2019 1,164,540 academic hacked 122
United States United States Postal Service 2018 60,000,000 government poor security 123
United States U.S. Army 2011 50,000 military accidentally published 29
United States U.S. Army 2010 392,000 government inside job 124
United States U.S. Department of Defense 2009 72,000 military lost / stolen media 29
United States U.S. Department of Veteran Affairs 2006 26,500,000 government, military lost / stolen computer 125126127
United States Various 2013 Insider
United States Various 2020 TBC government, military hacked 128129130131
United States 70 different law enforcement agencies 2011 123,461 government accidentally published 132
United States National Archives and Records Administration (U.S. military veterans records) 2009 76,000,000 military lost / stolen media 133
United States U.S. State Department 2010 260,000 military inside job 134
United States National Guard of the United States 2009 131,000, including names, Social Security Numbers, incentive payment amounts, payment dates military lost / stolen computer 135136
Virginia, US Virginia Prescription Monitoring Program 2009 8,257,378 healthcare hacked 29137138
Washington, US Washington State court system 2013 160,000 government hacked 139140
New Haven, Connecticut Yale University 2010 43,000 academic accidentally published 29
? Unknown agency
(believed to be tied to United States Census Bureau)		 2020 200,000,000 financial accidentally published 141
Bangladesh Cox's BazarPolice and Khulna Metropolitan Police 2023 270,000 hacked 142143
Pakistan Habib Bank Limited 2025 Employee records, bank account details, education history, salaries data. financial hacked 144145
Pakistan Federal Board of Revenue 2025 150 GB data containing CNICs, names, phone numbers, addresses and tax records. financial hacked 146144

List of data breaches involving companies

Entity Year Records Organization type Method Sources
50 companies and government institutions 2022 6,400,000 various poor security 11147
21st Century Oncology 2015 2,200,000 customer's data, including names, Social Security numbers, physicians, diagnoses, insurance information healthcare hacked 148149150
23andMe 2023 6,900,000 consumer genetics credential stuffing 151
500px 2020 14,870,304 social network hacked 152
Accendo Insurance Co. 2020 175,350 healthcare poor security 153154
Accenture 2007
Adobe Systems Incorporated 2013 152,000,000 tech hacked 155156
Adobe Inc. 2019 7,500,000 tech poor security 157158
ADT Inc. 2024 30,800, including email addresses, phone numbers and postal addresses. security accessing certain databases containing customer information 159160
Advocate Medical Group 2017 4,000,000 healthcare lost / stolen media 161162
AerServ (subsidiary of InMobi) 2018 75,000 advertising hacked 163
Affinity Health Plan, Inc. 2013 344,579 healthcare lost / stolen media 164165
Airtel 2019 320,000,000 telecommunications poor security 166
Air Canada 2018 20,000 transport hacked 167
Air India 2021 4,500,000, including name, date of birth, contact information, passport information, frequent flyer data, credit card data, ticket information transport hacked 168169
Amazon Japan G.K. 2019 unknown online accidentally published 170171
TD Ameritrade 2005 200,000 financial lost / stolen media 172
Ameriprise Financial 2005 260,000 customer records financial stolen laptop 173
Ancestry.com 2021 300,000 genealogy poor security 174
Animal Jam 2020 46,000,000 gaming hacked 175176
Ankle & Foot Center of Tampa Bay, Inc. 2021 156,000 healthcare hacked 177
Anthem Inc. 2015 80,000,000 healthcare hacked 178179180
AOL 2004 92,000,000 web inside job 181182
AOL 2006 20,000,000 web accidentally published, (sometimes referred to as a "Data Valdez",183184185 due to its size) 186
AOL 2014 2,400,000 web hacked 187
Apollo 2018 125,000,000 tech, marketing poor security 188
Apple iCloud 2014 photographs of celebrities tech, cloud storage 189190
Apple, Inc./BlueToad 2021 12,367,232 tech, retail accidentally published 191
Apple 2013 275,000 tech hacked 192
Apple Health Medicaid 2021 91,000 healthcare poor security 193
Ascension 2024 5,599,699 healthcare hacked 194195
Ashley Madison 2015 32,000,000 dating hacked 196197
AT&T 2008 113,000 telecoms lost / stolen computer 198
AT&T 2010 114,000 telecoms hacked 199
AT&T 2021 72,000,000 telecoms unknown 200
AT&T 2024 110,000,000 telecoms hacked third party service 201202
Atraf 2021 unknown dating hacked 203
Auction.co.kr 2008 18,000,000 web hacked 204
Aura 2026 900,000 digital identity protection hacked (phishing of employee) 205206
Canvas 2026 Allegedly 9,000 schools, including names, email addresses, ID numbers, and messages learning management system hacked 207208
Australian Red Cross Blood Service 2016 550,000, including names, contact details, birthdates, medical details, information about "at-risk sexual behaviour" non-profit accidentally published 209210
Automatic Data Processing 2006 125,000 financial poor security 211
AvMed, Inc. 2009 1,220,000 healthcare lost / stolen computer 212213
Bailey's Inc. 2015 250,000 retail hacked 214
The Bank of New York Mellon 2008 12,500,000, including names, addresses, birth dates, Social Security numbers financial lost box of data tapes 215216
Bank of America 2005 1,200,000 financial lost / stolen media 217
Barnes & Noble 2012 63 stores retail hacked 218219
Bell Canada 2017 1,900,000 telecoms poor security 220
Bell Canada 2018 100,000 telecoms hacked 221
Bell Canada 2024 2,200,000 telecoms data leak (12 nov. breachforums)
Benesse 2014 35,040,000 educational services hacked 222
Betfair 2010 2,300,000 gambling hacked 29
Bethesda Game Studios 2011 200,000 gaming hacked 223
Bethesda Game Studios 2018 customer names, addresses, contact details, partial credit card numbers gaming accidentally published 224
Betsson Group 2020 unknown gambling unknown 225
Blank Media Games 2018 7,633,234 gaming hacked 226227
Blizzard Entertainment 2012 14,000,000 gaming hacked 228229
BlueCross BlueShield of Tennessee 2009 1,023,039 healthcare lost / stolen media 23023189
BMO and Simplii 2018 90,000 financial poor security 232
Boeing 2006 382,000 employees (after similar losses of data on 3,600 employees in April and 161,000 employees in November, 2005) transport Lost/Stolen Device 173
British Airways 2018 500,000 transport hacked 233234235236237
British Airways 2015 tens of thousands transport hacked 238
Callaway Golf Company 2023 1,114,954, including full names, shipping addresses, email addresses, phone numbers, order histories, account passwords, answers to security questions sports hacked 239240
Canva 2019 140,000,000 web hacked 241242243244245
Capcom 2020 350,000 gaming hacked 246
Capital One 2019 106,000,000 financial unsecured S3 bucket 247248249
CardSystems Solutions Inc.

(MasterCard, Visa, Discover Financial Services and American Express)

2005 40,000,000 financial hacked 250251
Cathay Pacific Airways 2018 9,400,000 transport hacked 252
CareFirst BlueCross Blue Shield - Maryland 2015 1,100,000 healthcare hacked 253
Central Coast Credit Union 2016 60,000 financial hacked 254
Central Hudson Gas & Electric 2013 110,000 energy hacked 55
Change Healthcare 2024 100,000,000 healthcare hacked 255256
CheckFree Corporation 2009 5,000,000 financial hacked 257
CGI Group 2007 283,000 173
CheckPeople 2020 56,000,000 background check unknown 258
Chess.com 2023 800,000 gaming web scraping 259260
China Software Developer Network 2011 6,000,000 web hacked 261
Chinese gaming websites (three: Duowan, 7K7K, 178.com) 2011 10,000,000 gaming hacked 262
ChoicePoint 2005 163,000 consumer records data aggregator intentionally selling data 263
Citigroup 2005 3,900,000 financial lost / stolen media 264
Citigroup 2011 360,083 financial hacked 265266
Citigroup 2013 150,000 financial poor security 267
Clearview AI 2020 unknown (client list) information technology hacked 268269270
Collection No. 1 2019 773,000,000 various compilation of multiple data breaches 271
Community Health Systems 2014 4,500,000 healthcare hacked 272
Compass Bank 2007 1,000,000 financial inside job 273
Countrywide Financial Corp 2008 2,500,000 financial insider theft 274275276277
Cox Communications 2016 40,000 telecoms hacked 278
Crescent Health Inc., Walgreens 2013 100,000 healthcare, pharmacy lost / stolen computer 55279
Cutout.Pro 2024 19,972,829 web hacked 280
CVS 2015 millions pharmacy hacked 281
CyberServe 2021 1,107,034 hosting provider hacked 282283
D. A. Davidson & Co. 2007 192,000 clients' names, customer account and Social Security numbers, addresses and dates of birth broker/dealer hacked by Latvian hackers 284
Dai Nippon Printing 2007 8,637,405, including names, addresses, credit card numbers printing inside job 285286
Data Processors International
(MasterCard, Visa, Discover Financial Services and American Express)		 2008 8,000,000 financial hacked 287
DC Health Link 2023 56,000 healthcare misconfigured website 288
Dedalus Biologie (a division of Dedalus Global91) 2021 500,000 healthcare poor security 289290
Dell 2024 49,000,000, including customer's names, addresses, order and hardware information electronics brute force attack by a "Dell partner" 291292293
Deloitte 2017 350 clients emails consulting, accounting poor security 294295
Desjardins 2019 9,700,000 financial inside job 296
Discord 2025 Limited numbers of names, usernames, emails, IP addresses, limited billing information social network third-party customer support services hacked 297
Diskunion 2022 701,000 retail hacked
Disney 2024 1.2 TB of internal Slack data entertainment hacked with a trojan 298299300
Domino's Pizza (France) 2014 600,000 restaurant hacked 301
DonorView9091 2023 948,029 charity poor security 302
DoorDash 2019 4,900,000 web hacked 303
Dropbox 2012 68,648,009 web hacked 304
Drupal 2013 1,000,000 web hacked 305
DSW Inc. 2005 1,400,000 retail hacked 306
Dubsmash 2018 162,000,000 social network hacked 307152
Dun & Bradstreet 2013 1,000,000 tech hacked 308309
Duolingo 2023 2,676,696 educational services web scraping 310
Earl Enterprises
(Buca di Beppo, Earl of Sandwich, Planet Hollywood,
Chicken Guy, Mixology, Tequila Taqueria)		 2018 2,000,000 restaurant hacked 311
EasyJet 2019 9,000,000 (approx) - basic booking, 2208 (credit card details) transport hacked 312313
eBay 2014 145,000,000 e-commerce hacked 314
Educational Credit Management Corporation 2010 3,300,000 nonprofit, financial lost / stolen media 315
Eisenhower Medical Center 2011 514,330 healthcare lost / stolen computer 31689
Elance 2009 1.3 million services hacked 317
ElasticSearch 2019 108,000,000 tech poor security 318
Emergency Healthcare Physicians, Ltd. 2010 180,111 healthcare lost / stolen media 319320
Emory Healthcare 2012 315,000 healthcare poor security 89
Epic Games Fortnite 2018 user accounts gaming vulnerability 321322323
Epik 2021 15,000,000 web hacked
Ernst & Young 2006 234,000 customers of Hotels.com (after a similar loss of data on 38,000 employees of Ernst & Young clients in February) 173
Equifax 2017 143,000,000, including names, date of birth, Social Security numbers, addresses, credit cards, driver's licenses financial, credit reporting poor security 324325326327
EssilorLuxottica 2021 77,093,812 healthcare, retail hacked 328329
Evernote 2013 50,000,000 web hacked 330331
Evide data breach 2023 1,000 computer services for charities ransomware hacked 332333334335336
Exactis 2018 340,000,000 data broker poor security 337
Excellus BlueCross BlueShield 2015 10,000,000 healthcare hacked 338
Experian 2020 23,000,000 finance social engineering 339
Experian - T-Mobile US 2015 15,000,000 telecoms hacked 340341
EyeWire 2016 unknown tech lost / stolen computer 342
Facebook 2013 6,000,000 social network accidentally published 343
Facebook 2018 50,000,000 social network poor security 344345346347
Facebook 2010 87,000,000 social network data misuse 348349350
Facebook 2019 540,000,000 social network poor security 351352
Facebook 2019 1,500,000 social network accidentally uploaded 353
Facebook 2019 267,000,000 social network poor security 354355
Facebook Marketplace 2023 200,000 social network unknown 356
Fast Retailing 2019 461,091 retail hacked 357
Fidelity National Information Services 2007 8,500,000 financial inside job 358
Fidelity National Financial 2023 1,300,000 financial hacked by ALPHV 359360
Financial Business and Consumer Solutions (FBCS) 2024 4,250,000 financial ransomware attack 361362363
First American Corporation 2019 885,000,000 financial poor security 364
FireEye 2020 Unknown information security hacked 365366367
Friend Finder Network 2016 412,214,295 web poor security / hacked 368369
Funimation 2016 2,500,000 web hacked 370371
Formspring 2012 420,000 web accidentally published 372
Game Freak 2024 2,606 gaming hacked (phishing) 373374375
Gamigo90376 2012 8,000,000 web hacked 377
Gap Inc. 2007 800,000 retail lost / stolen computer 378379
Gawker 2010 1,500,000 web hacked 380381
GE Money 2008 650,000 customer's data, including 150,000 Social Security numbers and in-store credit card information from retail customers financial magnetic tape missing from an Iron Mountain Incorporated storage facility 382
Global Payments 2012 7,000,000 financial hacked 383
Gmail 2014 5,000,000 web hacked 384
Golfzon 2023 2,210,000, including names, phone numbers, email addresses, dates of birth sports ransomware/hacked 385
Google Plus 2018 500,000 social network poor security 386387388389
goregrish.com 2021 300,000 web hacked 390
Grozio Chirurgija 2017 25,000 healthcare hacked 391392393
GS Caltex 2008 11,100,000, including names, Social Security numbers, addresses, cell phone numbers, email addresses and workplaces of customers energy discs found in trash 394395
Gyft 2016 unknown web hacked 396397
Hannaford Brothers Supermarket Chain 2008 4,200,000, including credit card numbers and expiration dates retail hacked 398
HauteLook 2018 28,517,244 e-commerce hacked 399400401
HCA Healthcare 2023 11,270,000 healthcare hacked 402
Health Net 2009 1,500,000, including names, medical records, addresses, Social Security numbers healthcare lost / stolen media 403404
Health Net — IBM 2011 1,900,000 healthcare lost / stolen media 405
Heartland Payment Systems 2009 130,000,000 financial hacked 406407408409
Hewlett Packard 2006 200,000 tech, retail lost / stolen media 410
Hilton Hotels 2014 363,000 hotel/casino hacked 411412
Home Depot 2014 56,000,000 retail hacked 413414
Honda Canada 2011 283,000, including names, addresses, VIN numbers, Honda Financial Services Account numbers, phone numbers, e-mail addresses automotives "unusual traffic" 415416
Hyatt Hotels 2015 250 locations hotel/casino hacked 417418
Iberdrola 2022 1,300,000 energy poor security 419
IKEA 2022 95,000 retail accidentally published 420
Infosys McCamish Systems 2023 57,028 Bank of America customers, including names and Social Security numbers

28,268 Fidelity Investments customers, including names, dates of birth, Social Security numbers, bank account and routing numbers, credit card numbers, passwords, PINs

tech hacked 421422423424425
Insomniac Games 2023 1.67 TB, 1.3 million files of passports, I-9 forms, termination documents, Slack messages, Wolverine game data gaming hacked by Rhysida 426
Instagram 2020 200,000,000 social network poor security 427
Ititan Hosting Solutions 2024 unknown hosting provider hacked / poor security 428
International Committee of the Red Cross 2022 515,000 humanitarian unknown 429430431
Inuvik hospital 2016 6,700 healthcare inside job 432
Iranian banks (three: Saderat, Eghtesad Novin, and Saman) 2012 3,000,000 financial hacked 433
Japanet Takata 2004 510,000 shopping inside job 434
JP Morgan Chase 2007 2,600,000 financial lost / stolen media 435
JP Morgan Chase 2014 76,000,000 financial hacked 436
Justdial 2019 100,000,000 local search unprotected api 437
Kadokawa Corporation 2024 1.5TB of corporate, and personal information of users and employees of Niconico web ransomware hacking 438
KDDI 2006 4,000,000 telecoms hacked 439
Kaiser Permanente 2024 13,400,000 healthcare accidentally published 440441
Kido International 2025 Allegedly 8,000 children's and staff records exposed, including names, photographs, dates of birth, home addresses and parent contact details Private early-years education provider cyberattack 442443444445
KitchenPal (iCuisto) 2023 100,000 web hacked 446
KM.RU 2016 1,500,000 web hacked 447
Koodo Mobile 2020 unknown mobile carrier hacked 448
Korea Credit Bureau 2014 20,000,000 financial, credit bureau inside job 449
Kroll Background America 2013 1,000,000 tech hacked 308309
KT Corporation 2012 8,700,000 telecoms hacked 450451
LexisNexis 2014 1,000,000 tech hacked 308309
Landry's, Inc. 2015 500 locations restaurant hacked 452453
LastPass 2015 password reminders, e-mail addresses tech hacked 454
LastPass 2022 data breach 2022 Password vault backup tech poor security/hacked 455
Les Éditions Protégez-vous 2020 380,000 publisher (magazine) unknown 456
LifeLabs9091 2019 15,000,000 healthcare hacked 457
Lincoln Medical & Mental Health Center 2010 130,495 healthcare lost / stolen media 458
Line Yahoo 2023 520,006 social media/web cyber infection/unautorized access 459
LinkedIn, eHarmony, Last.fm 2012 8,000,000 web accidentally published 460461
Living Social 2013 50,000,000 web hacked 462463
Lyca Mobile 2023 16,000,000 telecommunications hacked 464465
MacRumors.com 2014 860,000 web hacked 466
Mandarin Oriental Hotels 2014 10 locations hotel/casino hacked 467468
Manipulated Caiman 2023 40,000,000 financial hacked 469329
Marriott International 2018 500,000,000 hotel/casino hacked 470
Marriott International 2020 5,200,000 hotel/casino poor security/inside job 471
MediaWorks New Zealand 2023 162,710 media hacked 472
Massive American business hack 2012 160,000,000 financial hacked 473
Medibank & AHM 2022 9,700,000 healthcare hacked
Medical Informatics Engineering 2015 3,900,000 healthcare hacked 474
Memorial Healthcare System 2011 102,153 healthcare lost / stolen media 47589
MGM Resorts 2019 10,600,000 hotel/casino hacked 476
Michaels 2014 3,000,000 retail hacked 477
Microsoft 2019 250,000,000 tech data exposed by misconfiguration 478
Microsoft Exchange servers 2021 unknown software zero-day vulnerabilities 479480
Militarysingles.com 2012 163,792 dating accidentally published 481
Mitsubishi Tokyo UFJ Bank 2006 960,000 financial intentionally lost 357
MongoDB 2019 202,000,000 tech poor security 482
MongoDB 2019 275,000,000 tech poor security 483
Mossack Fonseca 2016 Panama Papers 484485486487
Mobile TeleSystems (MTS) 2019 100,000,000 telecommunications misconfiguration/poor security 488
Monster.com 2007 1,600,000 web hacked 489
Morgan Stanley Smith Barney 2011 34,000 financial lost / stolen media 29
Morinaga Confectionery 2022 1,648,922 food ransomware hacked 490
Mozilla 2014 76,000 web poor security 491
MyHeritage 2018 92,283,889 genealogy unknown 492
Myspace 2016 360,000,000+, including usernames, passwords email addresses social network poor security/account recovery 493494495
NASDAQ 2014 unknown financial hacked 496
National Public Data 2024 2,900,000,000+ (claimed), including names, email addresses, phone numbers, Social Security numbers, and mailing addresses data broker hacked 497498499
Natural Grocers 2015 93 stores retail hacked 500
NEC Networks, LLC9091 2021 1,600,000 healthcare hacked 501
Neiman Marcus 2014 1,100,000 retail hacked 502503
Nemours Foundation 2011 1,055,489 healthcare lost / stolen media 89504
Network Solutions 2009 573,000 tech hacked 505506
Newegg 2018 credit card information e-commerce maliciously injected Javascript 507508
New York City Health & Hospitals Corp. 2010 1,700,000 healthcare lost / stolen media 89
New York State Electric & Gas 2012 1,800,000 energy inside job 29
New York Taxis 2014 52,000 transport poor security 509
Nexon Korea Corp 2011 13,200,000 gaming hacked 510
NHS 2011 8,630,000 healthcare lost / stolen media 511
Nintendo (Club Nintendo) 2013 240,000 gaming hacked 512
Nintendo (Nintendo Account) 2020 160,000 gaming hacked 513
Nippon Television 2016 430,000 media hacked 246
Now:Pensions 2020 30,000 financial rogue contractor 514
NTT Business Solutions 2023 9,000,000 telecoms hacked 515
NTT Docomo 2023 5,960,000 telecoms hacked 516
Odido 2026 6,500,000 including full name, address and city of residence, mobile number, customer number, email address, IBAN (bank account number), date of birth, identification details (passport or driver’s license number and validity) telecoms hacked 517
OGUsers 2022 529,000 web hacked 518
Optus 2022 9,800,000 telecommunications hacked 519
Orbitz 2018 880,000 web hacked 520
OVH 2013 undisclosed web hacked 521
PANDORA 2025 name, birthdate, email address jewelry hacked third party service 522
Pandora Papers 2021 85
Paradise Papers 2017 records 86
Patreon 2015 2,300,000 web hacked 523
PayPay 2020 20,076,016 QR code payment improper setting, hacked 524
Persol Carrier 2024 549,195 outsourcing service system deficiency
Popsugar 2018 123,857 media hacked 525
Premera 2015 11,000,000 healthcare hacked 526
Quest Diagnostics 2019 11,900,000 clinical laboratory poor security 527
Quora 2018 100,000,000 question & answer hacked 528529
Rakuten 2020 1,381,735 e-commerce improper setting, hacked 524
Rambler.ru 2012 98,167,935 web hacked 530531
Razer 2020 100,000, including email and mailing addresses, product orders, and phone numbers. tech misconfigured server 532
RBS Worldpay 2008 1,500,000 financial hacked 533
Reddit 2018 usernames, emails, 2007 database backup social network employee account compromise 534
Reddit 2021 unknown social network hacked 535534
Restaurant Depot 2011 200,000 retail hacked by Russian hackers 536537
Roblox 2016 52,458, including account balances, email addresses, IP addresses, purchases, usernames gaming exposed test server 538
Roblox 2023 3,943, including names, usernames, dates of birth, physical addresses, email addresses, IP addresses, phone numbers, and T-shirt sizes. gaming unknown 539540
RockYou! 2009 32,000,000 web, gaming hacked 541
Roku 2024 15,363 accounts tech credential stuffing attack 542
Roll20 2018 4,000,000, including email addresses, IP addresses, names, the last four digits of credit cards web, gaming hacked 543544
Roll20 2024 12,000,000, including full names, email addresses, IP addresses, the last four digits of credit cards web, gaming compromised administrative account 545546
Rosen Hotels9091 2016 unknown hotel/casino hacked 547
Saks Fifth Avenue / Lord & Taylor 2018 credit card records retail hacked 548
Scottrade 2015 4,600,000 financial hacked 549
Scribd 2013 500,000 web hacked 550551
Seacoast Radiology, PA 2010 231,400 healthcare hacked 89552
Sega 2011 1,290,755 gaming hacked 553
Shadow PC 2023 533,624, including full names, email addresses, dates of birth, billing addresses and credit card expiration dates tech social engineering 554555
ShopBack 2020 unknown e-commerce hacked 556
SingHealth 2018 1,500,000 healthcare hacked 557558559
Slack 2015 500,000 tech poor security 560
SlickWraps 2020 377,428 phone accessories poor security 561
Snapchat 2013 4,700,000 social network hacked 562
Snowflake 2024 Up to 165 victims, including AT&T, Ticketmaster, Advanced Auto Parts, Lending Tree, Cylance, Santander Bank and Neiman Marcus. tech, data storage compromised credentials 563564565566
SolarWinds 2020 Source Code Compromised network monitoring hacked 567
Sony Online Entertainment 2011 24,600,000 gaming hacked 568569
Sony Pictures 2011 1,000,000, including passwords, email addresses, phone numbers, home addresses, dates of birth web hacked by LulzSec 570
Sony Pictures 2014 100 terabytes media hacked 571572
Sony PlayStation Network 2011 77,000,000 gaming hacked 573
South Shore Hospital, Massachusetts 2010 800,000 healthcare lost / stolen media 29
Southern California Medical-Legal Consultants 2011 300,000 healthcare hacked 574575
Spartanburg Regional Healthcare System 2011 400,000, including names, Social Security numbers, addresses, dates of birth and medical billing codes healthcare lost / stolen computer 576577
Spoutible 2024 207,114 social network misconfigured API 578
Staples 2014 customer payment cards retail hacked 579
Starbucks 2008 97,000, including names, addresses, and Social Security numbers restaurant lost / stolen computer 580581582
Starwood
including Westin Hotels & Resorts and Sheraton Hotels and Resorts		 2015 54 locations hotel/casino hacked 583584
Steam 2011 35,000,000 gaming hacked 585
StockX 2019 6,800,000 e-commerce hacked 586
Stratfor 2011 ? military hacked 587
Supervalu 2014 200 stores retail hacked 588
Sutter Medical Center 2011 4,243,434 healthcare lost / stolen computer 589
Taobao 2016 20,000,000 e-commerce hacked 590
TalkTalk 2015 records telecom hacked 591
Tangerine Telecom 2024 243,462 telecom compromised credentials 592
Taringa! 2017 28,722,877 web hacked 593
Target Corporation 2013 110,000,000 retail hacked 594595596
TaxSlayer.com 2016 8,800 web hacked 597598599
TD Ameritrade 2007 6,300,000 financial hacked 600
TD Bank 2012 260,000 financial hacked 601602
TerraCom & YourTel 2013 170,000 telecoms accidentally published 603604
Tesla 2023 75,000 transport inside job 605
Tetrad 2020 120,000,000 market analysis poor security 606
Ticketfly (subsidiary of Eventbrite) 2018 26,151,608 ticket distribution hacked 607
Ticketmaster 2018 40,000, including login information, payment data, addresses, names, phone numbers ticket distribution maliciously modified Javascript 608609
Ticketmaster 2024 560,000,000 ticket distribution hacked third party service 610611
Tic Hosting Solutions (known as Torchbyte) 2023 46 hosting provider misconfigured web server 612428613
Tianya Club 2011 28,000,000 web hacked 614
TikTok 2020 42,000,000 social network poor security 427
TK / TJ Maxx 2007 94,000,000 retail hacked 615616
T-Mobile, Deutsche Telekom 2006 17,000,000, including phone numbers, addresses, dates of birth, email addresses telecoms lost / stolen media 617618
T-Mobile 2021 45,000,000 telecom hacked 619
T-Mobile 2023 37,000,000 telecom hacked 620
Tokopedia 2020 91,000,000 e-commerce hacked 621
Trello 2024 15,111,945 tech misconfigured API 622
Triple-S Salud, Inc. 2010 398,000 healthcare lost / stolen media 623
Truecaller 2019 299,055,000 telephone directory unknown 624625
Trump Hotels 2014 8 locations hotel/casino hacked 626627
Tumblr 2013 65,469,298 web hacked 628
Twilio 2022 125 tech phishing attack 629630
Twilio 2024 33,000,000, including phone numbers, tech credential stuffing attack 631632
Twitch 2015 unknown tech hacked 633
Twitch 2021 unknown tech hacked/misconfiguration 634
Twitter 2013 250,000 social network hacked 635
Typeform 2018 unknown tech poor security 252
Uber 2014 50,000 transport poor security 636
Uber 2017 57,000,000 transport hacked 637
Uber 2022 No customer, driver, or sensitive personal data was directly stolen. Exposure of sensitive data from internal systems. transport hacked 638
Ubisoft 2013 unknown gaming hacked 639
Ubuntu 2013 2,000,000 tech hacked 640
UCLA Medical Center, Santa Monica 2015 4,500,000 healthcare hacked 641
U-Haul 2023 67,000, including full names, dates of birth, driver license numbers transport stolen credentials 642643
MyFitnessPal644645 2018 150,000,000 consumer goods hacked 646647
UPS 2014 51 locations logistics hacked 648
Vastaamo 2020 130,000 healthcare hacked 649
Verifications.io (first leak) 2019 809,000,000 online marketing poor security 650
Verifications.io (total leaks) 2019 2,000,000,000 online marketing poor security 651
Verizon Communications 2016 1,500,000 telecoms hacked 652
View Media 2020 38,000,000 online marketing publicly accessible Amazon Web Services (AWS) server 653
Virgin Media 2020 900,000 telecoms accidentally exposed 654655
Vodafone 2013 2,000,000 telecoms inside job 656
VTech 2015 5,000,000 retail hacked 657
Walmart 2015 1,300,000 retail hacked 281
Washington Post 2011 1,270,000 media hacked 658
Wattpad 2020 270,000,000 web hacked 659
Wawa (company) 2020 30,000,000 retail hacked 660
Weebly 2016 43,430,316 web hacked 661662
Wellnow Urgent Care 2023 patients’ names, dates of birth, health information healthcare ransomware hacked 663
Wendy's 2015 unknown restaurant hacked 664665
Westpac 2019 98,000 financial hacked 666
Woodruff Arts Center 2019 unknown arts group poor security 667
WordPress 2018 thousands of websites web services vulnerabilities in plugins 668
Writerspace.com 2011 62,000 web hacked 669
Xat.com 2015 6,054,459 web social engineering 670
Yahoo 2013 3,000,000,000 web hacked 671672
Yahoo 2014 500,000,000 web hacked 673674675676677
Yahoo Japan 2013 22,000,000 tech, web hacked 678
Yahoo! Voices 2012 450,000 web hacked 679680
YouTube 2020 4,000,000 social network poor security 427
Yum! Brands 2023 names, driver's license numbers, and other ID card numbers. restaurant ransomware attack 681682
Zappos 2012 24,000,000 e-commerce hacked 683
Zynga 2019 173,000,000 social network hacked 684685
ADT 2026 Over 10M records containing PII and other internal corporate data security hacked 686
See also

See also

References

References

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