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List of Data Breaches

EntityYearRecordsOrganization typeMethod
T-Mobile202337,000,000telecomhacked
50 companies and government institutions20226,400,000variouspoor security
Iberdrola20221,300,000energypoor security
IKEA202295,000retailaccidentally published
International Committee of the Red Cross2022515,000humanitarianunknown
Medibank & AHM20229,700,000healthcarehacked
Morinaga Confectionery20221,648,922online shoppingransomware hacked
Optus20229,800,000telecommunicationshacked
Ancestry.com2021300,000webpoor security
Ankle & Foot Center of Tampa Bay, Inc.2021156,000healthcarehacked
Apple2021275,000techhacked
Apple Health Medicaid202191,000healthcarepoor security
Apple, Inc./BlueToad202112,367,232tech, retailaccidentally published
Atraf2021unknowndatinghacked
CyberServe20211,107,034hosting providerhacked
Dedalus2021500,000healthpoor security
Health Service Executive2021unknownhealthcareunknown
Microsoft Exchange servers2021unknownsoftwarezero-day vulnerabilities
NEC Networks, LLC20211,600,000healthcarehacked
T-Mobile202145,000,000telecomhacked
Twitch2021unknowntechhacked/misconfiguration
500px202014,870,304social networkinghacked
Accendo Insurance Co.2020175,350healthcarepoor security
Animal Jam202046,000,000gaminghacked
Betsson Group2020unknowngamblingunknown
Capcom2020350,000gamehacked
CheckPeople202056,000,000background checkunknown
Clearview AI2020unknown (client list)information technologyhacked
FireEye2020UnknownInformation Securityhacked
Instagram2020200,000,000social networkpoor security
Koodo Mobile2020unknownmobile carrierhacked
Les Éditions Protégez-vous2020380,000publisher (magazine)unknown
Marriott International20205,200,000hotelpoor security/inside job
National Health Information Center (NCZI) of Slovakia2020391,250healthcarepoor security
Nintendo (Nintendo Account)2020160,000gaminghacked
Now:Pensions202030,000financialrogue contractor
PayPay202020,076,016QR code paymentimproper setting, hacked
Rakuten20201,381,735webimproper setting, hacked
Service NSW (New South Wales)2020104,000governmenthacked
ShopBack2020unknowntechhacked
SlickWraps2020377,428phone accessoriespoor security
SolarWinds2020Source Code CompromisedNetwork Monitoringhacked
Tetrad2020120,000,000market analysispoor security
TikTok202042,000,000social mediapoor security
Tokopedia202091,000,000online shoppinghacked
U.S. federal government (2020 United States federal government data breach)2020TBCgovernment, militaryhacked
Unknown2020201,000,000personal and demographic data about residents and their properties of USPoor security
Vastaamo2020130,000healthcarehacked
View Media202038,000,000online marketingpublicly accessible Amazon Web Services (AWS) server
Virgin Media2020900,000mobile carrieraccidentally exposed
Wattpad2020270,000,000webhacked
Wawa (company)202030,000,000retailhacked
YouTube20204,000,000social mediapoor security
Unknown agency2020200,000,000financial - accidentally published
2019 Bulgarian revenue agency hack2019over 5,000,000governmenthacked
Adobe Inc.20197,500,000techpoor security
Airtel2019320,000,000telecommunicationspoor security
Amazon Japan G.K.2019unknownwebaccidentally published
Australian National University201919 years of dataacademichacked
Canva2019140,000,000webhacked
Capital One2019106,000,000financialunsecured S3 bucket
Desjardins20199,700,000financialinside job
DoorDash20194,900,000webhacked
EasyJet2019-20209,000,000 (approx) - basic booking, 2208 (credit card details)transporthacked
ElasticSearch2019108,000,000techpoor security
Facebook2019540,000,000social networkpoor security
Facebook20191,500,000social networkaccidentally uploaded
Facebook2019267,000,000social networkpoor security
Fast Retailing2019461,091retailhacked
First American Corporation2019885,000,000financial service companypoor security
Health Sciences Authority (Singapore)2019808,000healthcarepoor security
Justdial2019100,000,000local searchunprotected api
LifeLabs201915,000,000healthcarehacked
Microsoft2019250,000,000techdata exposed by misconfiguration
Ministry of Health (Singapore)201914,200healthcarepoor security/inside job
Mobile TeleSystems (MTS)2019100,000,000telecommunicationsmisconfiguration/poor security
MongoDB2019202,000,000techpoor security
MongoDB2019275,000,000techpoor security
Quest Diagnostics201911,900,000Clinical Laboratorypoor security
StockX20196,800,000retailhacked
Truecaller2019299,055,000Telephone directoryunknown
Universiti Teknologi MARA20191,164,540academichacked
Westpac201998,000financialhacked
Woodruff Arts Center2019unknownarts grouppoor security
Zynga2019173,000,000social networkhacked
2018 British Airways cyberattack2018500,000transporthacked
AerServ (subsidiary of InMobi)201875,000advertisinghacked
Air Canada201820,000transporthacked
Bell Canada2018100,000telecomshacked
Bethesda Game Studios2018unknowngamingaccidentally published
Blank Media Games20187,633,234gaminghacked
BMO and Simplii201890,000bankingpoor security
Cathay Pacific Airways20189,400,000transporthacked
Centers for Medicare & Medicaid Services201875,000healthcarehacked
Dubsmash2018162,000,000messaging apphacked
Earl Enterprises(Buca di Beppo / Earl of Sandwich / Planet Hollywood / Chicken Guy / Mixology / Tequila Taqueria)2018-20192,000,000restauranthacked
Exactis2018340,000,000data brokerpoor security
Facebook201850,000,000social networkpoor security
Google Plus2018500,000social networkpoor security
HauteLook201828,517,244retailhacked
Marriott International2018500,000,000hotelhacked
MyHeritage201892,283,889genealogyunknown
Orbitz2018880,000webhacked
Popsugar2018123,857fashionhacked
Quora2018100,000,000Question & Answerhacked
Reddit2018unknownwebhacked
SingHealth20181,500,000government, databasehacked
Ticketfly (subsidiary of Eventbrite)201826,151,608ticket distributionhacked
Typeform2018unknowntechpoor security
Under Armour2018150,000,000Consumer Goodshacked
United States Postal Service201860,000,000governmentpoor security
WordPress2018web servicehacked
Advocate Medical Group20174,000,000healthcarelost / stolen media
Bell Canada20171,900,000telecomspoor security
Defense Integrated Data Center (South Korea)2017235 GBmilitaryhacked
Deloitte2017350 clients emailsconsulting, accountingpoor security
Equifax2017163,119,000financial, credit reportingpoor security
Grozio Chirurgija201725,000healthcarehacked
Heathrow Airport20172.5GBtransportlost / stolen media
Taringa!201728,722,877webhacked
Uber201757,000,000transporthacked
21st Century Oncology20162,200,000healthcarehacked
Central Coast Credit Union201660,000financialhacked
Cox Communications201640,000telecomshacked
Democratic National Committee201619,252politicalhacked
EyeWire2016unknowntechlost / stolen computer
Friend Finder Networks2016412,214,295webpoor security / hacked
Funimation20162,500,000webhacked
Gyft2016unknownwebhacked
Inuvik hospital20166,700healthcareinside job
KM.RU20161,500,000webhacked
Nippon Television2016430,000mediahacked
Nival Networks20161,500,000gaminghacked
Ofcom2016unknowntelecominside job
Philippines Commission on Elections201655,000,000governmenthacked
Rosen Hotels2016unknownhotelhacked
Taobao201620,000,000retailhacked
TaxSlayer.com20168,800webhacked
University of California, Berkeley201680,000academichacked
University of Central Florida201663,000academichacked
US Department of Homeland Security201630,000governmentpoor security
Verizon Communications20161,500,000telecomshacked
Weebly201643,430,316webhacked
Anthem Inc.201580,000,000healthcarehacked
Ashley Madison201532,000,000webhacked
Australian Immigration Department2015G20 world leadersgovernmentaccidentally published
Bailey's Inc.2015250,000retailhacked
British Airways2015tens of thousandsretailhacked
CareFirst BlueCross Blue Shield - Maryland20151,100,000healthcarehacked
CVS2015millionsretailhacked
Excellus BlueCross BlueShield201510,000,000healthcarehacked
Experian - T-Mobile US201515,000,000telecomshacked
Hyatt Hotels2015250 locationshotelhacked
Internal Revenue Service2015720,000financialhacked
Japan Pension Service20151,250,000special public corporationhacked
Landry's, Inc.2015500 locationsrestauranthacked
Medical Informatics Engineering20153,900,000healthcarehacked
Natural Grocers201593 storesretailhacked
Patreon20152,300,000webhacked
Premera201511,000,000healthcarehacked
Sakai City, Japan2015680,000governmentinside job
Scottrade20154,600,000financialhacked
Slack2015500,000techpoor security
Starwood
including Westin Hotels & Resorts and Sheraton Hotels and Resorts201554 locationshotelhacked
Twitch2015unknowntechhacked
UCLA Medical Center, Santa Monica20154,500,000healthcarehacked
US Office of Personnel Management201521,500,000governmenthacked
VTech20155,000,000retailhacked
Walmart20151,300,000retailhacked
Wendy's2015unknownrestauranthacked
Xat.com20156,054,459websocial engineering
AOL20142,400,000webhacked
Benesse201435,040,000educational serviceshacked
Community Health Systems20144,500,000healthcarehacked
Domino's Pizza (France)2014600,000webhacked
eBay2014145,000,000webhacked
European Central Bank2014unknownfinancialhacked
Gmail20145,000,000webhacked
Hilton Hotels2014 and 2015363,000hotelhacked
Home Depot201456,000,000retailhacked
JP Morgan Chase201476,000,000financialhacked
Korea Credit Bureau201420,000,000financialinside job
LexisNexis20141,000,000techhacked
MacRumors.com2014860,000webhacked
Mandarin Oriental Hotels201410 locationshotelhacked
Michaels20143,000,000retailhacked
Mozilla201476,000webpoor security
NASDAQ2014unknownfinancialhacked
Neiman Marcus20141,100,000retailhacked
New York Taxis201452,000transportpoor security
Sony Pictures2014100 terabytesmediahacked
Supervalu2014200 storesretailhacked
Trump Hotels20148 locationshotelhacked
Uber201450,000techpoor security
University of Maryland, College Park2014300,000academichacked
UPS201451 locationsretailhacked
Yahoo2014500,000,000webhacked
Adobe Systems Incorporated2013152,000,000techhacked
Affinity Health Plan, Inc.2013344,579healthcarelost / stolen media
Central Hudson Gas & Electric2013110,000energyhacked
Citigroup2013150,000financialpoor security
Crescent Health Inc., Walgreens2013100,000healthcarelost / stolen computer
Drupal20131,000,000webhacked
Dun & Bradstreet20131,000,000techhacked
Evernote201350,000,000webhacked
Facebook20136,000,000social networkaccidentally published
Florida Department of Juvenile Justice2013100,000governmentlost / stolen computer
Kirkwood Community College2013125,000academichacked
Kroll Background America20131,000,000techhacked
Living Social201350,000,000webhacked
Nintendo (Club Nintendo)2013240,000gaminghacked
OVH2013undisclosedwebhacked
Scribd2013500,000webhacked
SnapChat20134,700,000web, techhacked
South Africa police201316,000governmenthacked
Target Corporation2013110,000,000retailhacked
TerraCom & YourTel2013170,000telecomsaccidentally published
Tumblr201365,469,298webhacked
Twitter2013250,000webhacked
Ubisoft2013unknowngaminghacked
Ubuntu20132,000,000techhacked
Vodafone20132,000,000telecomsinside job
Washington State court system2013160,000governmenthacked
Yahoo20133,000,000,000webhacked
Yahoo Japan201322,000,000tech, webhacked
Barnes & Noble201263 storesretailhacked
Blizzard Entertainment201214,000,000gaminghacked
California Department of Child Support Services2012800,000governmentlost / stolen media
Dropbox201268,648,009webhacked
Emory Healthcare2012315,000healthcarepoor security
Formspring2012420,000webaccidentally published
Gamigo20128,000,000webhacked
Global Payments20127,000,000financialhacked
Greek government20129,000,000governmenthacked
Iranian banks (three: Saderat, Eghtesad Novin, and Saman)20123,000,000financialhacked
KT Corporation20128,700,000telecomshacked
LinkedIn, eHarmony, Last.fm20128,000,000webaccidentally published
Massive Business Hack2012160,000,000financialhacked
Militarysingles.com2012163,792web, militaryaccidentally published
New York State Electric & Gas20121,800,000energyinside job
Office of the Texas Attorney General20126,500,000governmentaccidentally published
Rambler.ru201298,167,935webhacked
South Carolina Government20126,400,000healthcareinside job
Syrian government (Syria Files)20122,434,899governmenthacked
TD Bank2012260,000financialhacked
US Medicaid2012780,000government, healthcarehacked
Yahoo! Voices2012450,000webhacked
Zappos201224,000,000webhacked
Bethesda Game Studios2011200,000gaminghacked
China Software Developer Network20116,000,000webhacked
Chinese gaming websites (three: Duowan, 7K7K, 178.com)201110,000,000webhacked
Citigroup2011360,083financialhacked
Countrywide Financial Corp20112,500,000financialinside job
Eisenhower Medical Center2011514,330healthcarelost / stolen computer
Health Net — IBM20111,900,000healthcarelost / stolen media
Honda Canada2011283,000retailpoor security
Massachusetts Government2011210,000governmentpoor security
Memorial Healthcare System2011102,153healthcarelost / stolen media
Morgan Stanley Smith Barney201134,000financiallost / stolen media
Nemours Foundation20111,055,489healthcarelost / stolen media
Nexon Korea Corp201113,200,000webhacked
NHS20118,300,000healthcarelost / stolen media
Oregon Department of Transportation2011unknowngovernmentpoor security
Restaurant Depot2011200,000retailhacked
San Francisco Public Utilities Commission2011180,000governmenthacked
Sega20111,290,755gaminghacked
Sony Online Entertainment201124,600,000gaminghacked
Sony Pictures20111,000,000webhacked
Sony PlayStation Network201177,000,000gaminghacked
Southern California Medical-Legal Consultants2011300,000healthcarehacked
Spartanburg Regional Healthcare System2011400,000healthcarelost / stolen computer
State of Texas20113,500,000governmentaccidentally published
Steam201135,000,000webhacked
Stratfor2011935,000militaryaccidentally published
Sutter Medical Center20114,243,434healthcarelost / stolen computer
Tianya Club201128,000,000webhacked
Tricare20114,901,432military, healthcarelost / stolen computer
U.S. Army201150,000militaryaccidentally published
U.S. law enforcement (70 different agencies)2011123,461governmentaccidentally published
University of Wisconsin–Milwaukee201173,000academichacked
Washington Post20111,270,000mediahacked
Writerspace.com201162,000webhacked
AT&T2010114,000telecomshacked
Betfair20102,300,000webhacked
Colorado government2010105,470healthcarelost / stolen computer
Educational Credit Management Corporation20103,300,000financiallost / stolen media
Embassy Cables2010251,000governmentinside job
Emergency Healthcare Physicians, Ltd.2010180,111healthcarelost / stolen media
Federal Reserve Bank of Cleveland2010400,000financialhacked
Gawker20101,500,000webhacked
JP Morgan Chase20102,600,000financiallost / stolen media
Lincoln Medical & Mental Health Center2010130,495healthcarelost / stolen media
New York City Health & Hospitals Corp.20101,700,000healthcarelost / stolen media
Ohio State University2010760,000academichacked
Puerto Rico Department of Health2010515,000healthcarehacked
Seacoast Radiology, PA2010231,400healthcarehacked
South Shore Hospital, Massachusetts2010800,000healthcarelost / stolen media
Triple-S Salud, Inc.2010398,000healthcarelost / stolen media
U.S. Army(classified documents)2010392,000governmentinside job
U.S. government (United States diplomatic cables leak)2010260,000militaryinside job
Yale University201043,000academicaccidentally published
AvMed, Inc.20091,220,000healthcarelost / stolen computer
BlueCross BlueShield of Tennessee20091,023,209healthcarelost / stolen media
CheckFree Corporation20095,000,000financialhacked
Health Net2009500,000healthcarelost / stolen media
Heartland2009130,000,000financialhacked
National Archives and Records Administration (U.S. military veterans records)200976,000,000militarylost / stolen media
National Guard of the United States2009131,000militarylost / stolen computer
Network Solutions2009573,000techhacked
RockYou!200932,000,000web, gaminghacked
U.S. Department of Defense200972,000militarylost / stolen media
University of California, Berkeley2009160,000academichacked
Virginia Department of Health20098,257,378government, healthcarehacked
Virginia Prescription Monitoring Program2009531,400healthcarehacked
AT&T2008113,000telecomslost / stolen computer
Auction.co.kr200818,000,000webhacked
Data Processors International(MasterCard, Visa, Discover Financial Services and American Express)20088,000,000financialhacked
GS Caltex200811,100,000energyinside job
Jefferson County, West Virginia20081,600,000governmentaccidentally published
Ministry of Education (Chile)20086,000,000governmentaccidentally published
Norwegian Tax Administration20083,950,000governmentaccidentally published
RBS Worldpay20081,500,000financialhacked
Service Personnel and Veterans Agency (UK)200850,500governmentlost / stolen media
Stanford University200872,000academiclost / stolen computer
Starbucks200897,000retaillost / stolen computer
The Bank of New York Mellon200812,500,000financiallost / stolen media
UK Home Office200884,000governmentlost / stolen media
UK Ministry of Defence20081,700,000governmentlost / stolen media
University of Miami20082,100,000academiclost / stolen computer
University of Utah Hospital & Clinics20082,200,000academiclost / stolen media
City and Hackney Teaching Primary Care Trust2007160,000healthcarelost / stolen media
Compass Bank20071,000,000financialinside job
Dai Nippon Printing20078,637,405retailinside job
Fidelity National Information Services20078,500,000financialinside job
Gap Inc.2007800,000retaillost / stolen computer
Hannaford Brothers Supermarket Chain20074,200,000retailhacked
Monster.com20071,600,000webhacked
TD Ameritrade20076,300,000financialhacked
Texas Lottery200789,000governmentinside job
TK / TJ Maxx200794,000,000retailhacked
UK Driving Standards Agency20073,000,000governmentlost / stolen media
UK Revenue & Customs200725,000,000governmentlost / stolen media
AOL200620,000,000webaccidentally published
Countrywide Financial Corp20062,600,000financialinside job
Hewlett Packard2006200,000tech, retaillost / stolen media
KDDI20064,000,000telecomshacked
Mitsubishi Tokyo UFJ Bank2006960,000financialintentionally lost
T-Mobile, Deutsche Telekom200617,000,000telecomslost / stolen media
U.S. Department of Veteran Affairs200626,500,000government, militarylost / stolen computer
Automatic Data Processing2005125,000financialpoor security
Bank of America20051,200,000financiallost / stolen media
CardSystems Solutions Inc. (MasterCard, Visa, Discover Financial Services and American Express)200540,000,000financialhacked
Citigroup20053,900,000financiallost / stolen media
DSW Inc.20051,400,000retailhacked
TD Ameritrade2005200,000financiallost / stolen media
AOL200492,000,000webinside job, hacked
Japanet Takata2004510,000shoppinginside job