Data breaches in Japan

Data breaches and unauthorized access incidents announced in Japan, organized from official announcements. Severity is calculated from the type, scale, and certainty of the leak and the impact on operations. Scope and how severity is calculated

722 / 722 incidents

AnnouncedSeverityOrganizationLeak statusData involvedLargest count
1MinorKeystoneOfficial online storeConfirmedName, Postal addressNot disclosed
1MinorGifu Association of Radiological TechnologistsMember email deliveryPossibleName, Email addressNot disclosed
3MediumKakao PiccomaPiccoma newsletter deliveryConfirmedEmail address1,002,404 records
2LowShizuoka City Children's Creative Town Ma-a-ruProgram notice email deliveryPossibleOtherNot disclosed
3MediumCharilotoChariloto betting appConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password, Payment details373 people
1MinorIwakuni CityCommerce promotion newsletterPossibleName, Email address, Phone numberNot disclosed
3MediumeJudoNewsletter deliveryConfirmedName, Email address, Payment detailsNot disclosed
3MediumNGT48Official CD Shop newsletterConfirmedName, Email address, Phone number, Postal address, Payment detailsNot disclosed
1MinorYamada ShotenArt department newsletterPossibleOtherNot disclosed
2LowShizuoka City Center for Culture and Creative IndustriesPossibleOtherNot disclosed
1MinorJapan Fire Service AssociationNewsletter deliveryPossibleOtherNot disclosed
1MinorARTnews JAPANNewsletterConfirmedName, Email address, Postal addressNot disclosed
2LowBEENOS Entertainment / DHAKB48 Official Shop newsletterConfirmedName, Email address, Phone number, Postal address, Date of birth, PasswordNot disclosed
1MinorSasakawa Sports FoundationWeekly newsletterPossibleName, Email addressup to 12,000 records
4HighThe Ehime ShimbunEmail newslettersConfirmedName, Email address, Phone number, User or member ID, Date of birth, Password, Payment detailsabout 32,000 people
2LowNHK PublishingMinna no Shumi no Engei newsletterConfirmedEmail addressabout 127,000 records
1MinorJapan Association of Corporate ExecutivesEvent notice emailsPossibleEmail address, Phone numberNot disclosed
1MinorTokyo Metropolitan Government Bureau of WaterworksExternal hard drivesPossibleName, Phone number, Postal address1,932 people
5CriticalPizza Hut JapanOnline ordering payment APIConfirmedEmail address, Phone number, User or member ID, Payment detailsup to 4,480,000 records
1MinorHina ProjectShosetsuka ni NaroPossibleEmail address, Date of birth, Password215 accounts
1MinorM&A CloudRecruitment and campaign site formsPossibleOtherNot disclosed
1MinorShimane PrefectureOnline history and culture seminar and community-engagement seminar applicationsPossibleName, Email address, Phone number, Postal address471 records
2LowKumamoto UniversityUniversity e-mail newsletterConfirmedOtherNot disclosed
1MinorINAC Kobe Leonessa (Inac Football Club)Email newsletter systemConfirmedName, Email address, Phone number, Postal address, User or member IDNot disclosed
2LowKankyo ShimbunshaKankyo Shimbun and Silver Shinpo newslettersPossibleOtherNot disclosed
2LowGogyofukuBusiness partner newsletter and Gogyofuku Park newsletterConfirmedName, Email address, Phone number, Postal address, Date of birth, PasswordNot disclosed
1MinorJapanese Red Cross Society Tokyo ChapterNT NEWS e-mail newsletterPossibleOtherNot disclosed
1MinorMoneycle ResearchFormer corporate site contact formPossibleName, Email address, Phone number1,487 records
1MinorDaio PaperAtent web seminar e-mail deliveryPossibleEmail addressNot disclosed
1MinorSaitama UniversityPress newsletter deliveryConfirmedEmail address, Phone number, Postal addressNot disclosed
2LowRyukyu Shimpo KaihatsuOkinawa work-style matching support navi newsletterConfirmedOtherNot disclosed
1MinorRivastaCustomer e-mail deliveryConfirmedOtherNot disclosed
2LowNational Institute for Environmental StudiesNIES, NIES media and A-PLAT newslettersPossibleName, Email addressNot disclosed
1MinorUtsunomiya CityPossibleEmail addressNot disclosed
1MinorSaitama PrefectureSilver Pia Saitama 2026 volunteer mailingsPossibleName, Email addressabout 1,200 people
1MinorTamiyaevent participant mailingsPossibleName, Email addressNot disclosed
1MinorYamanashi PrefectureYamanashi Update! newsletterPossibleName, Email addressabout 1,000 people
2LowJapan Triathlon Unionmailings to members and associatesPossibleName, Email address, Payment detailsNot disclosed
2LowMinistry of the Environment of Japansix environmental newslettersPossibleName, Email addressNot disclosed
2LowTOKAI HoldingsTLC member servicesInvestigating—Not disclosed
3MediumGreen MonsterFX Navi demo trading appPossibleName, Email address, Phone number, Postal address, Date of birth, Payment details, Credentials, My Number (national ID)66,003 records
3MediumGood Smile Companyofficial online shopConfirmedName, Email address, Phone number, Postal address, Payment detailsNot disclosed
1MinorHiroshima International Centeremail newsletterPossibleOtherNot disclosed
1MinorHiroshima Cityindustry promotion newslettersPossibleOther4,424 records
3MediumHR VisionNihon no Jinjibu newsletterConfirmedName, Email address, Phone number, Passwordup to 212,243 records
1MinorGEIETMac House newsletterPossibleName, Email address, Date of birthNot disclosed
1MinorKagoshima Music Associationmail magazine sign-up siteConfirmedOtherNot disclosed
1MinorTokai Cityholiday on-duty doctor phone servicePossiblePhone number2,073 records
1MinorSunfairemail newsPossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorSaitama Prefectureunit-care training mailingsPossibleEmail address407 companies
2LowNokyo KyokaiJAcom newsletterConfirmedEmail addressNot disclosed
3MediumCellsproduct and seminar mailingsPossibleName, Email address, Password, Payment detailsup to 18,000 records
1MinorOkamuraSmart Logitech newsletterPossibleName, Email address, Phone numberNot disclosed
3MediumXebio HoldingsGallery 2 online shopPossibleEmail address, Phone number, Postal address, Password, Payment detailsup to 128,000 records
2LowHiroshima PrefectureHiroshima Kenmin Dayori gift formPossibleName, Email address, Phone number, Postal address1,470 records
5CriticalLindt & Sprungli Japanonline shop and appConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password, Payment details3,147,469 records
1MinorNomura Securitiesi-Port subscriber mailingsPossibleEmail addressNot disclosed
2LowTokyo Metropolitan GovernmentTokyo wide-area farm volunteer mailingsConfirmedName, Email addressup to 16,000 records
1MinorHobby JapanHobby Japan Web newsletterPossibleName, Email address, Postal address, Date of birthNot disclosed
5CriticalfutureshopSaaS e-commerce platformConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password, Payment details3,147,469 records
2LowIMInewsletter for medical professionalsInvestigating—Not disclosed
3MediumValue DesignValue CardConfirmedUser or member ID1,424,748 records
2LowYamada DenkiYamada Video and Smartphone Gold member pagesPossibleOtherNot disclosed
2LowAzone Internationalemail newsletterConfirmedName, Email address, Postal address, PasswordNot disclosed
1MinorKyoto CityWorld Masters Games 2027 Kansai volunteer recruitmentPossibleName, Email address288 records
1MinorPanasonicNo leakName, Email address, Phone number, Postal address, User or member IDNot disclosed
1MinorSuzuka ChinzeiOfficial X accountInvestigating—Not disclosed
5CriticalMoss Food ServicesMos Card (contractor Value Design)ConfirmedUser or member ID, Payment details, Credentials1,133,070 records
2LowTreasure FactoryOn-site purchase / moving servicesConfirmedName, Email addressabout 750,000 records
3Medium&ST HoldingsBusiness serverPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birthabout 2,500,000 records
1MinorHoso Bunka FoundationHBF NewsletterPossibleName, Email addressNot disclosed
1MinorKyoiku GeijutsushaKatokaton and digital textbook e-mail registrationPossibleOtherNot disclosed
2LowBeing and RelationNewsletter deliveryPossibleName, Email addressNot disclosed
1MinorKoga CityCitizen activity support center application formPossibleName, Email address, Phone number, Postal address476 records
1MinorBoat Race MarugameB Card member newsletterPossibleName, Email address, User or member IDNot disclosed
1MinorNagaoka CityGekkan Nagaoka newsletterPossibleEmail address2,628 records
1MinorB.A.U.M. Consult JapanWeekly e-mail deliveryPossibleName, Email addressNot disclosed
1MinorTanabe CityNET119 emergency reporting systemPossibleName, Email address, Phone number, Postal address, Date of birthNot disclosed
2LowTokyo Ski AssociationMember email deliveryInvestigating—Not disclosed
1MinorOkazaki CityCrime-prevention and public-housing email servicesPossibleEmail addressabout 26,000 records
2LowShikoku Railway Company (JR Shikoku)JR Shikoku Tour Web newsletterPossibleName, Email address, Postal address, Date of birthup to 30,000 people
1MinorTokamachi CityAgricultural information email servicePossibleName, Email address, Phone number599 people
2LowNet ProtectionsNP Atobarai invoice reissue systemConfirmedName, Postal address28,884 records
2LowOANDA SecuritiesMT4/MT5 on Onamae.com Desktop CloudPossibleUser or member ID, Password, Payment detailsNot disclosed
1MinorLaplace SystemNewsletter and outage notice deliveryPossibleName, Email addressNot disclosed
1MinorSunrise PromotionNewsletter deliveryConfirmedEmail addressNot disclosed
1MinorExpo 2027 Horticultural Exhibition AssociationGREEN x EXPO 2027 volunteer mass emailPossibleEmail addressNot disclosed
1MinorNagano Future Creation Prefectural CouncilCouncil website member and newsletter dataPossibleName, Email addressNot disclosed
1MinorBICSI JapanSeminar information newsletterPossibleOtherNot disclosed
1MinorTechFabricSEO Kenkyu Channel newsletterPossibleName, Email addressNot disclosed
3MediumTohoku Electric Power Frontiere-Point Mall newsletterPossibleName, Email address, Phone number, Postal address, User or member ID, Password, Payment detailsup to 100,000 records
1MinorWakayama PrefectureWakayama Migration PR MagazinePossibleName, Email address3,050 people
1MinorShunan Cityfan club newsletterPossibleName, Email address, Phone number, Postal address302 records
2LowKihouchomigration support desk mailingsPossibleName, Email addressNot disclosed
4HighThe Niigata NippoNiigata Nippo Passport newslettersConfirmedName, Email address, Phone number, Date of birth, Password, Payment detailsup to 253,000 people
1MinorJapan Management Associationbusiness information mailingsPossibleOtherNot disclosed
1MinorNew Japan Pro-Wrestlingemail newsletterPossibleEmail addressNot disclosed
2LowNulabcustomer mailingsPossibleEmail address, User or member ID, Password, Payment detailsNot disclosed
1MinorDaytonaDIOS ordering partner mailingsPossibleEmail addressNot disclosed
1MinorKagoshima City Sports Promotion Associationnewsletters and lottery noticesPossibleName, Email addressNot disclosed
2LowShochikuCinema Kabuki newsletterInvestigating—Not disclosed
1MinorMahito Designemail newsletterPossibleName, Email addressNot disclosed
1MinorNobeoka CityCommerce, Tourism and Culture Dept. mailingsPossibleName, Email address2,429 records
1MinorIchinoseki CityIchinoseki Mail alertsConfirmedEmail addressNot disclosed
1MinorNatori Cityemail delivery systemPossibleEmail addressNot disclosed
3MediumMIRARTH HoldingsDLPS owners club mailingsPossibleName, Email address, Postal address, Payment detailsabout 11,300 records
1MinorKasugai Citybusiness support newsletterPossibleOtherNot disclosed
1MinorKnowledge LeanEco Planet mailing magazinePossibleEmail addressNot disclosed
1MinorHiroshima Prefectureconsumer protection newsletterPossibleEmail address1,624 records
1MinorKagoshima CitySukusuku Mail and SOHO Kagoshima newslettersPossibleEmail address, Date of birthabout 2,000 records
2LowGolden Way JapanFXTF trading accountsPossibleUser or member ID, Password, Payment detailsNot disclosed
1MinorThinQ Healthcareproduct site formsPossibleName, Email address, Phone numberNot disclosed
1MinorEchigo Tokimeki RailwaySetsugekka and supporter club mailingsPossibleName, Email address, User or member IDNot disclosed
1MinorOsaka SME Investment & Consultationemail newsletterPossibleName, Email addressNot disclosed
1MinorSolvvyemail newsletterConfirmedOtherNot disclosed
1MinorNanjo CityShosa Half Marathon runner surveysPossibleName, Email address, Postal address11,117 records
2LowJapan Liberal Partymember newsletterInvestigating—Not disclosed
2LowCognivisionparts information mailingsPossibleName, Email address, Payment detailsNot disclosed
1MinorHiroshima University of Economicsfamily and career newslettersPossibleName, Email addressNot disclosed
1MinorSpeeeIeul, Sumai Step, Housii, NuricaePossibleName, Email address, Phone number, Postal address, Password3,822 records
1MinorNagano Prefecturedigitalization support and business scout formsPossibleName, Email address, Phone number, Postal address341 records
2LowIbaraki Prefecturemigration newsletterPossibleName, Email address, Phone number, Postal address, Date of birthabout 2,700 records
1MinorReFactbusiness service sites and sales mail formsPossibleName, Email address, Phone numberNot disclosed
2LowMeitetsu Travel Servicemedia reservation center newsletterPossibleName, Email address, Phone number, Postal address, Date of birthabout 130,000 people
1MinorIsho JPemail newsPossibleName, Email address, Phone number, Postal address, PasswordNot disclosed
1MinorTechnolMR series newslettersPossibleName, Email addressNot disclosed
1MinorSendai Children's Foundationnewsletters and event noticesPossibleName, Email addressNot disclosed
2LowKOMOJUpayment platformConfirmedEmail address, Credentialsabout 4,100 records
2LowSHIPSSHIPS CYCLE MARKETPossiblePayment detailsNot disclosed
3MediumSociety of Automotive Engineers of Japanemail newsletterConfirmedEmail address, Phone number, Postal address, Password, Payment detailsNot disclosed
1MinorSendai Gender Equality Foundationemail newsletterPossibleName, Email addressNot disclosed
3MediumSystem FiveOnline shop (system5.jp)PossibleName, Email address, Password, Payment detailsup to 15,000 people
1MinorSmartHRfive group sites' inquiry formsPossibleName, Email address, Phone number2,012 people
1MinorgifteeTabisaki Nozei and giftee Benefit mailingsConfirmedEmail address, User or member IDNot disclosed
1MinorUDScorporate newsletterPossibleOtherNot disclosed
1MinorYokohama CityGREEN x EXPO 2027 volunteer mailingsPossibleName, Email address6,334 people
3MediumFujiccoprize campaign entry formsPossibleName, Email address, Phone number, Postal address, Payment details, ID documentsabout 15,500 records
1MinorChunichi ServiceContact formPossibleName, Email address, Phone number, Postal address112 records
1MinorMie PrefectureMigration seminarPossibleName, Email address, Phone number, Postal address156 people
1MinorSpiral LowcasStaff assembly systemPossibleName, Email addressabout 3,000 records
2LowMinistry of Health, Labour and Welfare1FEdu (Technohill)Partly confirmedName, Email address, Phone number, Passwordup to 595 people
2LowValtecMOT and other service platformInvestigating—Not disclosed
4HighCapcomCAPCOM IDConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth11,774,247 records
1MinorSustainable Media LabPlajournal newsletterPossibleEmail addressNot disclosed
1MinorJFE ChemicalInternal IT environmentConfirmedOtherNot disclosed
2LowShinryo CorporationInternal systemsInvestigating—Not disclosed
1MinorONE FUKUOKA HOTELPre-opening teaser site formsPossibleName, Email address, Phone number252 people
1MinorJapan Council of Shopping CentersJCSC NEWS newsletterConfirmedOtherNot disclosed
2LowRyukyu ShimpoRyukyu Shimpo NewsletterInvestigating—Not disclosed
1MinorJapan Petroleum Exploration (JAPEX)JAPEX newsletter and investor event invitationsPossibleName, Email address, Phone number, Postal addressNot disclosed
2LowCINRACorporate site formsPossibleName, Email address, Phone number, Password, Payment details6,323 records
1MinorToyama PrefectureShukatsu Line Toyama newsletterPossibleOtherNot disclosed
2LowKyodo NewsDeep Edge Plus newsletterInvestigating—Not disclosed
2LowSangyo ShimbunNikkan Sangyo Shimbun email bulletinInvestigating—Not disclosed
1MinorKumabaseWeekly Kumabase newsletterPossibleOtherNot disclosed
1MinorAomori PrefectureRelationship-population event applicationsPossibleName, Email address, Phone number206 records
1MinorOnebiBlastmail contractor data and mailing listPossibleOtherNot disclosed
1MinorJapan Management AssociationNew-arrivals emailPossibleOtherNot disclosed
1MinorSallyUZU inquiry management system and old website formsPossibleName, Email address, Phone number, User or member ID544 people
2LowOita Godo ShimbunNewsletter deliveryInvestigating—Not disclosed
2LowGaitame FinestFX trading accounts (My Page, MT4, MT5)Investigating—Not disclosed
1MinorTerilogy HoldingsCreed recruitment site formsPossibleName, Email address, Phone number, Postal address, Date of birth39 records
1MinorOtotoiOTOTOYPossibleEmail address, User or member IDup to 480,000 records
2LowFuture Shopfutureshop e-commerce platform serversConfirmedOtherNot disclosed
2LowTagami TownTown email notification serviceInvestigating—Not disclosed
2LowTakeda CityInternal city networkConfirmedOtherabout 60,000 records
2LowMindshare Mama Marketing CompanyMamanowa newsletterInvestigating—Not disclosed
1MinorYokohama Gender Equality AssociationForum and Forum Minami-Ota newslettersPossibleEmail addressNot disclosed
1MinorYuzawa CityEmergency and disaster email serviceConfirmedEmail address, Phone numberNot disclosed
2LowDai Nippon Printinghonto newsletterPossibleName, Email address, Password, Payment detailsNot disclosed
1MinorOita PrefectureOita Child-Rearing Support Passport newsletterConfirmedName, Email addressNot disclosed
1MinorKami CityKami City registered email serviceConfirmedEmail addressNot disclosed
1MinorYamanashi PrefectureCareer Up University course formsPossibleName, Email address, Phone number, Postal address339 people
1MinorKobunshi JournalKobunshi Journal newsletterPossibleEmail addressNot disclosed
2LowRaku-PNewsletter deliveryInvestigating—Not disclosed
1MinorNippon BS Broadcasting (BS11)BS11 Magazine newsletterPossibleOtherNot disclosed
1MinorJapan Association of Radiological TechnologistsMember newsletterConfirmedOtherNot disclosed
1MinorYamanashi CityDisaster and crime-prevention email servicePossibleEmail addressNot disclosed
3MediumKurashicomHokuo, Kurashi no Dogu Ten newsletterConfirmedName, Email address, Phone number, Postal address, Password, Payment detailsNot disclosed
2LowD-CreateSafety education newsletterInvestigating—Not disclosed
1MinorAdvanced Education FoundationJigyo Koso Online and Sentan Kyoiku Online newslettersConfirmedEmail addressNot disclosed
2LowSocial Interiorsubsclife newsletterPossibleName, Email address, Phone number, Postal address, Password, Payment detailsNot disclosed
2LowMie PrefectureHealth promotion support sitePossibleNameNot disclosed
2LowDigital ArtsCloud service environmentConfirmedCredentialsNot disclosed
2LowOkinawa TouristOTS PREMIUMInvestigating—Not disclosed
3MediumRakus Light CloudBlast MailPartly confirmedName, Email address, Phone number, Postal address, User or member ID1,002,404 records
2LowAEONGroup websitesInvestigating—Not disclosed
2LowRecruitCar Sensor net / C-MATCHPossibleName, Email address, Phone number, Postal address, User or member ID, Payment detailsNot disclosed
1MinorKindai UniversityFaculty of International Studies class materialsConfirmedUser or member ID43 people
1MinorOnamae.comDesktop CloudPossiblePasswordNot disclosed
2LowFuji-Q HighlandCLUB Fuji-Q official app and member sitePossibleName, Email address, Phone number, User or member ID, Date of birth, Payment details159 people
1MinorChiba PrefectureFour commissioned project forms and accountsPossibleName, Email address, Phone numberNot disclosed
1MinorKatabamiEmail deliveryPossibleOtherNot disclosed
1MinorSakaide CitySakaide relocation portal consultation formPossibleName, Email address28 records
1MinorMiyakojima CityDisaster prevention email servicePossibleEmail addressNot disclosed
1MinorNTTPCEmail delivery for various servicesPossibleEmail addressNot disclosed
2LowYachiyo TownDisaster prevention information email servicePossibleEmail addressabout 760 records
1MinorYoji Katsudo KenkyukaiCompany networkConfirmedOtherNot disclosed
1MinorGenkai TownDisaster email servicePossibleEmail address, Phone numberabout 800 records
1MinorNeo CareerX-Tech Agent and Bee job database formsPossibleName, Email address, Phone numberNot disclosed
1MinorJiteraPast corporate-site inquiry and interview formsPossibleName, Email address205 records
1MinorMediiCorporate site inquiry form (Feb 2023 - Dec 2024)PossibleName, Email address, Phone number2,365 records
1MinorSaitama PrefecturePlat Saitama smart agriculture guidePossibleName, Email address669 companies
1MinorChuo CityGinza Blossom event ticket sales (GETTIIS)PossibleOtherNot disclosed
2LowPickleball OneFormer websites and PICKLEBALL ONE GINZA SHIMBASHI formsPossibleName, Email address, Phone number, Postal address, Password, Payment details1,959 records
1MinorRepronextPast recruitment site and goggles LP formsPossibleOtherNot disclosed
1MinorWakitaWAKITA CON-PAS inquiry formPossibleOtherNot disclosed
1MinorMEMEStudio forms on websitePossibleOtherNot disclosed
2LowSan Holdings (Tamanoya, Kigetsudo Cereo)Online flower and offering orderingPossibleName, Email address, Phone number, Postal address, Payment detailsNot disclosed
2LowMonex SecuritiesAccount opening systemInvestigating—Not disclosed
2LowGlobeeabceed related systemsPossibleEmail address, Password10,834 accounts
2LowSKY Perfect JSATSATELLITE CRAYON PROJECT inquiry formPossibleName, Email address, Phone number, Postal address, Payment detailsup to 32 records
1MinorInnovationSubsidiaries' test site and corporate site formsPossibleOtherNot disclosed
1MinorGood FudosanGoWeb tenancy application cloud servicePossibleOtherNot disclosed
2LowHiroshima Prefectural Daimon High SchoolTeacher's backpack with student documentsPossibleName, Health information226 people
1MinorHida CityHida Manga Kingdom contact formPossibleName, Email address, Phone number15 records
1MinorAidma HoldingsMama Works job sitePossibleName, Email address, Phone number, Postal address, Date of birth, PasswordNot disclosed
1MinorTVerTVer Advertising formsPossibleName, Email address1,801 records
2LowYotsuya Medical CubeFormer reservation system ItsuakiConfirmedName, Email address, Phone number, Date of birthNot disclosed
1MinorExawizardswellwiz, BizDevRecruit and Rehabwiz web formsPossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorSchooenpeer, Schoo Swing and reskilling event formsPossibleName, Email address, Phone number, Postal addressabout 2,600 people
1MinorNTT DX PartnerStudio-built website formsPossibleName, Email address, Phone numberNot disclosed
1MinorGamoTokyo Hairdressing Awards, cetera app, OLAPLEX inquiry formsPossibleName, Email address, Phone numberNot disclosed
1MinorYamamoto TownShared and personal staff foldersInvestigating—Not disclosed
1MinorMinistry of Land, Infrastructure, Transport and TourismHousing Energy Saving 2024 Campaign officePossibleName, Email address, Phone number, Postal address23,918 people
1MinorKokoronetTamanoya / KigetsudoPossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorKDDIau PAY storesPossibleName, Postal addressup to 458,508 people
2LowFuji TelevisionProgram promotion systemPossibleName, Email addressup to 730 records
3MediumTsu City LibraryOfficial websiteInvestigating—Not disclosed
3MediumNECConfirmedName, Email address, User or member ID, Credentials77,851 people
1MinorTochigi Prefectural PoliceInternal system via ArcadiaInvestigating—Not disclosed
1MinorFeedforceWebsite forms including former EC Booster formPossibleName, Email address, Phone number, Password714 records
2LowAshiya GakuenCampus systemsPossibleOtherNot disclosed
1MinorFukuoka CityFukuoka Convention Center website formsPossibleName, Email address, Phone number2,239 records
1MinorAwarefyCorporate site and service page formsPossibleOtherNot disclosed
1MinorTodokerCorporate site inquiry formPossibleName, Email address, Phone number2,345 records
1MinorFuchu City, HiroshimaFufufuchu relocation site and Michi-no-Eki Bingo-Fuchu site formsPossibleName, Email address, Password154 records
1MinorSynchro LogisticsRecruiting site formsPossibleOther62 records
1MinorCrowdWorksCrowdWorks Academy, CrowdTown, CrowdLinks formsPossibleName, Email address, Phone number12,131 records
3Mediumhokanhokan Suito (insurance agency service)ConfirmedPayment details, Health information2 companies
1MinorOMRON Social Solutionsmeemo public ride-share site download formPossibleName, Email address, Phone number63 records
1MinorSpaceyGYYM and THE POINT website formsPossibleName, Email address, Phone numberNot disclosed
1MinorGreen Energy & CompanyCorporate site forms of three group companiesPossibleName, Email address, Phone number, Postal address857 records
1MinorUPSIDERFormer recruiting site formPossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorTRUSTARTService inquiry and request formsPossibleName, Email address, Phone numberabout 1,440 records
1MinorToho Holdings (Entouch)Remote detailing databaseConfirmedName, Email address, Phone numberNot disclosed
1MinorSaku CitySakunet information delivery servicePossibleName, Phone number2,059 people
1MinorJIJJapanese and English inquiry formsPossibleName, Email addressNot disclosed
2LowLiNKXCorporate site inquiry formPossibleOther1,890 records
1MinorNanbo TaxiWebsite inquiry formPossibleName, Email address, Phone numberNot disclosed
1MinorRashinbanJapan Wonder Travel, Tour Guide Recruitment, Compass Stay formsPossibleOther2,129 records
1MinorFLEMINGWebsite inquiry formPossibleName, Email addressNot disclosed
2LowKami TownKami Town disaster prevention emailPossibleOtherNot disclosed
1MinormikanCorporate site and campaign formsPossibleName, Email address, User or member ID7,009 records
1MinorSquare EnixSquare Enix AccountPossibleOtherNot disclosed
1MinorAjikeCorporate site inquiry, request and recruiting formsPossibleName, Email address, Phone number734 records
2LowYumelinkCuenote FC email delivery servicePossibleEmail addressabout 9,000,000 records
1MinorZ-KAIZ-ID systemPossibleName, Email address, User or member IDNot disclosed
2LowPingCAPInternal systemsPartly confirmedName, Email address, Phone number, User or member ID, CredentialsNot disclosed
2LowKoga CityApplyNowConfirmedName, Email address, Phone number, Postal address, Date of birth567 records
4HighTrustbankFurusato ChoiceConfirmedName, Email address, Phone number, Postal address, Password4,454,097 records
1MinorFuchu City, HiroshimaMichi-no-Eki Bingo Fuchu sitePossibleName, Email address, Passwordup to 123 records
2LowAomori CityPublic-private partnership portalPossibleName, Email address, Phone number, Postal address11 records
2LowNagasaki CityAway-game support campaignPossibleName, Email address19 people
3MediumLink StationGETTIISPartly confirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password, Payment detailsup to 1,125 people
2LowShima Municipal HospitalInquiry formPossibleName, Email address8 records
1MinorJapan PostYu ID / Yuyu PointsPossibleName, Email address, Phone number, Postal address, Date of birth249 accounts
1MinorIshikawa Prefectural Board of Education7 prefectural school websitesPossibleName, Date of birth138 people
1MinorAkita PrefectureAkita Digital AcademyPossibleName, Email address, Phone number, Postal address164 people
1MinorMitsuke CityHappiness MitsukePossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorNagaoka CityRelocation tour sitePossibleName, Email address, Postal address5 records
1MinorNiigata CityExpert dispatch and telework programsPossibleName, Email address, Phone numberNot disclosed
1MinorFukuoka Convention CenterInquiry and reservation formsPossibleName, Email address, Phone number1,185 records
1MinorX MileContact formPossibleName, Email address, Phone numberNot disclosed
1MinorSkymark AirlinesRecruitment inquiry formPossibleName, Email address488 people
3MediumPapylessRenta!Investigating—Not disclosed
2Lowand USStudio inquiry formInvestigating—Not disclosed
1MinorZigZagWorldShoppingConfirmedName, Email address, Phone number, Postal address301 people
1MinorToho HoldingsEntouchConfirmedName, Email address, Phone numberNot disclosed
4HighYumeLinkEmail delivery systemPartly confirmedEmail address, Credentialsabout 9,000,000 records
2LowJETROWebsiteConfirmedEmail address743 records
1MinorTokushima PrefectureWakimachi High SchoolPossibleEmail address63 accounts
1MinorGifu PrefectureGIFU New Business Co-creation ChallengePossibleName, Email address2 records
1MinorMedialinkStudio inquiry formsPossibleName, Email address, Phone number901 records
2LowLIXILL-PocketConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth3,379 people
2LowSoftBankMy SoftBank / My Y!mobile / My MenuInvestigating—Not disclosed
3MediumCrypton Future MediaSONICWIRE and D2RPartly confirmedName, Email address, Phone number, Postal address, User or member ID, Password362,137 records
2LowNiftyLine application systemPossibleName, Phone number, Postal address, User or member ID, Date of birthup to 18,000 records
4HighHankyu Hanshin Department StoresH2O IDPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birth, Payment detailsabout 1,260,000 records
1MinorSaitama Prefectural PoliceArcadia safety confirmation systemPossibleName, Email addressabout 13,000 people
2LowBusiness TechFuneral hall reservation systemPossibleName, Email address, Phone number, Postal address, Date of birthNot disclosed
2LowJapan Football AssociationJFA PassportInvestigating—Not disclosed
2LowJoshinInternal networkInvestigating—Not disclosed
1MinorTohoku Electric Power FrontierEvent inquiry formsPossibleName, Email address, Phone number182 records
2LowSecond RetailingGEO and 2nd STREETInvestigating—Not disclosed
1MinorJapan Times News to YouInvestigating—Not disclosed
2LowYamagata PrefectureSkill test certificatesConfirmedName, User or member ID, Date of birth7 people
1MinorFuchu City, HiroshimaFufufu Chu migration sitePossibleName, Email address, Phone number, Postal address, PasswordNot disclosed
1MinorHokutetsuHassha Oraie Net usersPossibleName, Phone number, User or member ID660 people
1MinorKoko KankoHasha Orai NetPossibleName, Phone number64 people
1MinorHiroshima Electric RailwayHassha Oh-Rai NetPossibleName, Phone number, User or member IDNot disclosed
1MinorDaily Tohoku ShimbunCommissioned web pagesPossibleName, Email address, Phone number423 records
1MinorFullerCorporate site / KOSEN Caravan inquiriesPossibleName, Email address6,029 records
1MinorWakayama PrefectureForeign talent employment support deskPossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorIsahaya CityMichi-no-Eki 251 Iimori Jagar RoadPossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorShizuoka ShimbunListing and SBS Gakuen formsPossibleName, Email address, Phone numberNot disclosed
1MinorItoigawa CityMigration and workation inquiriesPossibleName, Email address, Phone numberNot disclosed
1MinorLuupOld website formPossibleName, Email address, Phone number, Postal address21,368 records
1MinorRaksulService guide site formPossibleName, Email address, Phone number6,412 records
2LowKishiwada City HospitalPatient documentsPossibleHealth information1 people
1MinorIwai Cosmo SecuritiesTradeWorksConfirmedName, Email address4,975 people
1MinorAstemoData-sharing cloudConfirmedName, Email address, Phone numberabout 350 people
4HighNikkeiDevelopment cloudConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Credentialsabout 1,680,000 records
3MediumFANCL / AttenirE-commerce member dataConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password785,496 people
2LowStudioCloud environmentPossibleName, Email address, Phone number, Postal address, Date of birth, Password, Credentials, Health information886 records
2LowM3MR-kunConfirmedName, Email address25,775 people
1MinorImari-Arita Fire DepartmentNET119 emergency reporting systemPossibleName, Email address, Phone number, Postal address, Date of birth15 people
1MinorWakayama Prefecture 21 Prefectural SchoolsRaiden SchoolPossibleName, Email addressabout 16,000 people
1MinorKoboHassha Oraie NetPossibleName, Phone numberup to 8,341 records
3MediumACCESSCROS (Taiwan subsidiary)ConfirmedName, Email address, Phone number, Postal address, User or member ID, Payment details, Credentials1,305 accounts
4HighNTT SolmareComic CmoaConfirmedEmail address, User or member ID, Date of birth, Passwordup to 4,200,000 records
3MediumBeauty GarageEC siteConfirmedName, Email address, Phone number, Password775,725 records
4HighBK JapanBurger King official appConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birthabout 11,180,000 records
1MinorSourcenextMember informationPossibleName, Email address, Phone number, Postal address, Date of birth, PasswordNot disclosed
2LowMedleyat-LinkInvestigating—Not disclosed
2LowIchinomiya CityArcadia mail delivery / Net119PossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorKanagawa Prefecture Fire Protection DivisionLP gas dealer mailingNo leakEmail address55 companies
2LowOsaki Regional Fire DepartmentNET119 and 119RAIDENPossibleName, Phone number, Postal address, Health information45 people
1MinorMIXIKoto PortalPossibleEmail address, User or member ID750 people
1MinorMazdaCLUB MAZDA COMMUNITYPossibleEmail address, Postal address, User or member IDup to 4,103 people
1MinorIzumiYume Online and Yume DeliveryPossibleName, Email addressup to 400,000 records
3MediumAenaEC appPossibleName, Email address, Phone number, Postal address, Date of birth, Payment detailsup to 817,215 people
2LowGolf Digest OnlineGDOPartly confirmedName, Email address, Phone number, Postal address, Date of birth1,789 records
1MinorJapan PostJP Business Tool BoxPossibleName, Email address, Phone number, Postal addressup to 4,807 records
2LowJR Kyushu Food ServiceToipo appPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birthabout 26,900 people
1MinorSKY Perfect JSATSKY PerfecTV! MembersPossibleEmail addressNot disclosed
1MinorJR CentralJR Central MARKET / Iimono TanboPossibleName, Email address, Phone number, Postal addressNot disclosed
4HighFivotIDAREConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Payment details, My Number (national ID)129,659 people
1MinorTokai CityDisaster information systemPossibleName, Email address, Phone number1,210 records
2LowShiso CityShi-tan TsushinInvestigating—Not disclosed
2LowMitsuke CityEmergency information mailInvestigating—Not disclosed
1MinorTogo TownCommunity safety mail / missing elderly search mailPossibleName, Email addressabout 3,400 records
2LowOita PrefectureSafety and security emailPossibleEmail address27,667 records
2LowFukui CityDisaster weather information emailPossibleEmail addressNot disclosed
2LowNyuzen TownEmergency information emailInvestigating—Not disclosed
2LowTakaoka CityDisaster information deliveryInvestigating—Not disclosed
1MinorShimada CityShimada City disaster mailPossibleEmail addressNot disclosed
2LowYokosuka CityDisaster and crime prevention alertsPossibleName, Email address, Phone number47,065 people
2LowAyase CitySafety and Security MailPossibleName, Email address, Postal addressNot disclosed
2LowIkaruga TownDisaster alert mail / HazardonInvestigating—Not disclosed
1MinorKuriyama TownDisaster information emailInvestigating—Not disclosed
2LowMinoh CityDisaster information delivery serviceInvestigating—Not disclosed
2LowOkayama CityDisaster information mass delivery servicePossibleName, Email address, Phone number, User or member IDabout 5,000 records
2LowMinamiboso CitySafety and security emailInvestigating—Not disclosed
1MinorMima CityDisaster information systemPossibleName, Email address, Phone number328 people
2LowShimonoseki CityDisaster prevention emailInvestigating—Not disclosed
3MediumHakodate CityANSIN MailInvestigating—Not disclosed
2LowArcadiaSpeeCAN RAIDEN / NET119PossibleName, Email address, Phone number, Postal address, Date of birth9,020 records
3MediumRideon ExpressGinsara, Kamatora, Sushi JojoPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birth, Passwordup to 6,500,000 records
1MinorRakuten Mobilemy Rakuten Mobile payment certificatesPossibleName, Phone number, Postal addressNot disclosed
1MinorApplabEmail servicePossibleEmail address, PasswordNot disclosed
1MinorShibuya Mirai DesignCommunity sitePossibleEmail address, User or member ID495 people
1MinorYamamomiji no Yado HappokanReservation dataPossibleName, Email address, Phone numberNot disclosed
2LowEchigo Natural GasRyomo SystemsPossibleName, Postal address, User or member ID, Payment detailsabout 1,000 records
2LowJapan ICT Telecom User Associatione-learningPossibleName, Email addressNot disclosed
2LowNihon Shurui HanbaiTokyo SuisuiInvestigating—Not disclosed
2LowFibergateCloud servicesInvestigating—Not disclosed
2LowJapan Management Association Management CenterJikan LabConfirmedName, Email address, Phone number, Postal address, User or member ID2,950 people
2LowDydo DrincoDydo Issho ni LabInvestigating—Not disclosed
2LowBandai Namco ExperienceWangan Midnight Arcade PortalPossibleEmail address, User or member IDNot disclosed
1MinorMorinaga Milk IndustryMount Cafe ClubPossibleEmail address, User or member ID291 people
2LowKoikeyaKoikeya GOGO LandConfirmedEmail address, User or member IDup to 1,800 records
2LowKochi PrefectureKochi no ChiPartly confirmedEmail address, User or member ID358 people
1MinorChitose GroupChitose AcademyPossibleName, Email address, User or member IDup to 843 people
2LowZENB JAPANZENB GARDENPartly confirmedEmail address, User or member ID897 people
1MinorYamahaYamaha Network Engineers communityConfirmedEmail address, User or member IDabout 1,600 people
2LowSuzukiSuzuki VillagePossibleEmail address, User or member IDabout 3,000 people
2LowLY CorporationDS.LAB communityPossibleName, Email address, User or member ID1,750 people
2LowSansanSansan User ForumPartly confirmedEmail address, User or member ID10,012 people
1MinorEnecomInternal networkInvestigating—Not disclosed
2LowCalbeeFan siteConfirmedEmail address, User or member IDNot disclosed
1MinorOsaka City Asahi WardPublic assistance medical ticketInvestigating—Not disclosed
1MinorOsaka CityNursery notebookInvestigating—Not disclosed
1MinorOsaka City Board of EducationSchool expense aid noticeInvestigating—Not disclosed
1MinorOsaka City Digital OfficeEmailInvestigating—Not disclosed
1MinorOsaka City Finance BureauInvestigating—Not disclosed
1MinorChuo Ward, Osaka CityMaternal and child health handbook copiesInvestigating—Not disclosed
1MinorOsaka City Tennoji WardSurvey fee statementInvestigating—Not disclosed
1MinorOsaka City Suminoe WardLong-term care insurance cardInvestigating—Not disclosed
1MinorOsaka City, Higashiyodogawa WardSchool admission applicationsInvestigating—Not disclosed
1MinorKita Ward, Osaka CityResident recordsInvestigating—Not disclosed
1MinorIkuno Ward, Osaka CityLoss of eligibility noticeInvestigating—Not disclosed
2LowKanagawa Prefectural PoliceUsed driver's licensesPossibleID documentsabout 30 records
2LowSix ApartMovable Type CloudInvestigating—Not disclosed
2LowLIXILSumai Hiroba / Nekokabe HirobaPossibleEmail address, User or member IDNot disclosed
2LowCommuneCommune / Commune for WorkConfirmedEmail address, User or member ID166,505 people
1MinorResorttrustMember and hotel reservation dataInvestigating—Not disclosed
1MinorCoconalaSkill marketplaceInvestigating—Not disclosed
2LowVIEW CardVIEW's NETPossibleEmail addressup to 4,030,000 records
1MinorJR EastEkinet and Otona no Kyujitsu ClubInvestigating—Not disclosed
4HighBookoff GroupPartly confirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password6,427,735 records
1MinorAzumahitmartPossibleName, Email address, Phone number, Postal address, Date of birth, PasswordNot disclosed
2LowJUNMail magazinePossibleEmail addressNot disclosed
1MinorHachijuni Nagano BankStaff emailPossibleName, Email address, Phone number35 records
2LowHiHoBiZiMo / Hikari GigaPartly confirmedName, Email address, Phone number, Postal address38,509 accounts
2LowFuture Shopfuture Scenario Cast / futureCartRecoveryPossibleName, Email address, User or member ID, Date of birthNot disclosed
2LowCyber UniversityCourse registration and tuitionInvestigating—Not disclosed
5CriticalLawsonLawson ID and app reservationsConfirmedName, Email address, Phone number, Postal address, Payment details2,155,345 records
2LowAomori PrefectureAomori BiikiPossibleName, Email address, User or member IDup to 2,950 people
2LowWingarc1stnest PortalPossibleName, Email address, Postal addressabout 1,200 people
1MinorVALXVALX FUN communityPossibleEmail address, User or member ID2,950 people
2LowNTT DocomoAnshin Filter for docomoInvestigating—Not disclosed
3MediumUzabaseNewsPicksPossibleName, Email address, Phone number, Postal address, Date of birth, Payment detailsup to 362,000 records
5CriticalAdventureskyticketPartly confirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password, Payment detailsabout 4,130,000 records
1MinorOsaka Museum of HistoryVolunteer contact emailsConfirmedName, Email address4 people
1MinoramanaInternal networkInvestigating—Not disclosed
3MediumDaiichikoshoBig EchoPossibleName, Email address, Phone number, Date of birthabout 8,724,000 records
1MinorCLASS EARTHNo leakEmail address69 records
2LowCERESPoint IncomeInvestigating—Not disclosed
1MinorHotelierGrand Inn Canalside and 7 other facilitiesConfirmedName, Email address, Phone number7,919 people
2LowPoppinsReservation and staff dispatch systemInvestigating—Not disclosed
2LowSaitama PrefectureShibusawa MIXConfirmedName, Email addressabout 2,200 people
3MediumNissui LogisticsNissui GroupInvestigating—Not disclosed
3MediumIDC FrontierIDCF CloudConfirmedEmail address, User or member ID, Password48 companies
1MinorToda CorporationPayment management systemConfirmedName, Email address, Phone number, Postal addressup to 7,200 records
2LowHISThailand subsidiaryPossibleName, Date of birth, Health information, ID documentsup to 627 people
1MinorSompo JapanSMILING ROADPossibleName, Email address, Phone number, Postal address, User or member IDabout 60,000 records
1MinorNagasaki CitySpecial tax change noticeNo leakName, Postal address1 people
1MinorNagasaki CityEvent invitationNo leakName, Postal address1 people
1MinorNagasaki CityRecycling promoter documentsNo leakName6 people
1MinorNagasaki CityRecycling grant documentsPossibleName, Phone number, Postal address1 people
1MinorNagasaki CityGroup health checkup reservationsPossibleName, Postal address, Date of birth69 people
1MinorNagasaki CityFacility use permitsNo leakNameNot disclosed
1MinorNagasaki CityOutdoor advertisement applicationNo leakName1 people
1MinorNagasaki CityStartup support consent formNo leakName, Postal address1 people
1MinorNagasaki CitySpecial tax collection noticeNo leakName, Postal address1 people
2LowKansai University of International Studiese-PortfolioInvestigating—Not disclosed
2LowYamaguchi UniversityStaff emailPartly confirmedName, Email address, User or member ID, Password967 records
1MinorWeather Caster NetworkPossibleName, Email address, Phone number, Postal addressup to 15,959 records
1MinorKirishima CityChild medical eligibility cardNo leakName, Postal address, Date of birthNot disclosed
2LowEvergreen MarketingEmailPossibleName, Email address, Postal address, Payment details763 records
1MinorActiveMail-order sitePossibleEmail address, Phone number, Postal addressup to 54,916 records
2LowNakabayashiApplyNowConfirmedName, Email address, Phone number, Postal address, Date of birth1,826 records
3MediumCitizen WatchInquiry managementPossibleName, Email address, Phone number, Postal address, Payment detailsabout 100,000 people
1MinorAsahi Kasei TherapeuticsPharma DIGITALPossibleName, Email address, Postal addressNot disclosed
1MinorRakutenMember dataPossibleName, Postal address, Date of birthNot disclosed
2LownimocaConfirmedEmail address, Date of birth521 records
2LowRakutenRakuten DriveConfirmedUser or member ID, Password313 accounts
3MediumMr MaxPartly confirmedName, Email address, Phone number, User or member IDup to 1,735,154 people
4HighWhite EssenceReservation and core systemConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Passwordabout 1,050,000 accounts
2LowDaiki SuisanPossibleName, Postal address, Date of birthabout 175,000 people
1Minori-plugOfferBoxPossibleName, Email addressup to 314,000 people
3MediumDaiwa SecuritiesInquiry managementPossibleName, Email address, Payment detailsabout 110,000 people
3MediumOsaka Metropolitan UniversityInvestigating—Not disclosed
3MediumGMO Research & AIinfoQConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password894,082 records
3MediumMonogatari CorporationYakiniku King official appConfirmedName, Email address, Phone number, User or member IDabout 10,790,000 records
2LowNikkei BPEmployee emailPartly confirmedName, Email address, Credentials26 records
1MinorNikkeiGoogle Workspace / Microsoft 365PossibleName, Email address1,646 people
1MinorStudysapuriPossibleEmail address3,687 records
1MinorAbahouse InternationalPossibleName, Postal addressNot disclosed
1MinorKodansha BECKFormer BC emailPossibleUser or member ID, PasswordNot disclosed
1MinorOkinawa Prefectural University of ArtsNo leakName, Email address207 people
1MinorWondertablePossibleName, Email address, Phone number, Postal address, Date of birthNot disclosed
3MediumIkegami TsushinkiInvestigating—Not disclosed
1MinorJOGMECPossibleEmail addressabout 8,500 records
1MinorSammy Networks777CON-PASSPossiblePhone number, Date of birthNot disclosed
3MediumInstitute of Energy Economics, JapanPartly confirmedName, Email address, Phone number, Payment details, ID documents759 records
1MinorDai-ichi Life GroupHR systemPossibleName, Postal addressabout 120,000 people
1MinorMoonstarPossibleName, Postal addressNot disclosed
3MediumYamato TransportKuroneko Deferred Payment ServiceConfirmedName, Email address, Phone number, Postal addressabout 5,260,000 records
1MinorMisawa CityInternal groupwareInvestigating—Not disclosed
1MinorGyokuhokanFJ Resort ManagementInvestigating—Not disclosed
1MinorCapital ZenrinTemairazu reservation systemInvestigating—Not disclosed
1MinorChojusoTemairazu reservation systemInvestigating—Not disclosed
2LowTicket PlusTicketplusPossibleName, Email address, Phone number, Postal address, User or member ID, Payment detailsNot disclosed
1MinorLawsonMail serverInvestigating—Not disclosed
2LowSagawa ExpressParcel tracking servicePossibleName, Email address, Phone number, Postal address, User or member IDup to 53,230,000 records
2LowLashinbangPossibleName, Email address, Date of birth, Payment details, ID documentsNot disclosed
3MediumJapan Atomic Energy AgencyResearch support siteConfirmedHealth information, My Number (national ID)Not disclosed
2LowShudo GakuenPossibleName, Phone number, Postal address, Payment detailsNot disclosed
1MinorNabari Kintetsu GasLP gas customer dataPossibleName, Phone number, Postal address, User or member IDabout 6,800 records
2LowG PlanG PointPossibleUser or member IDup to 70,000 records
2LowYoshinoya and HanamaruApplyNow recruitment platformConfirmedName, Email address, Postal address, Date of birth, Password5,366 records
2LowVOISINGConfirmedPostal address, Date of birthNot disclosed
2LowSeicomartSeicomart appPossibleName, Email address, Phone number, Postal address, Date of birth574,647 people
1MinorResort Hanayu no MoriTemairazu reservation serviceInvestigating—Not disclosed
1MinorHolonicTEMAIRAZUInvestigating—Not disclosed
2LowUniritaInternal document managementConfirmedCredentialsNot disclosed
2LowJapan PostPost Office appConfirmedName, Email address, Phone number, Postal address, Date of birth19 people
1MinorTOPPAN / Sompo JapanNo leakName177,426 people
3MediumeplusSumachike refundConfirmedName, Email address, Payment details1,463 records
5CriticalTimes MobilityTimes CarConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password, Payment details, ID documents6,628,007 records
1MinorDaito GasPossibleName, Phone number, Postal address, User or member IDabout 124,000 records
2LowTemairazuHotel reservation management systemPossibleName, Email address, Phone numberup to 4,450,000 people
1MinorShueishaHAPPY PLUS COMMUNITYConfirmedPostal address2,835 people
1MinorTokyo MetroMetopoPossibleEmail addressabout 59,000 records
1MinorStarts PublishingOZmallPossibleName, Email addressup to 442,779 people
2LowKeio Corporation GroupInvestigating—Not disclosed
2LowNippon Rent-A-CarAppPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birth, Payment details, ID documentsNot disclosed
1MinorJapan PostInternational mail inquiry web servicePossibleName, Email address, Phone number, Postal address, User or member IDabout 600 records
1MinorLEGOLAND JapanHotel reservationsPossibleName, Email address, Phone number1,557 records
1MinorKyusaiConfirmedName, Phone number, Postal address484 people
1MinorSmaregiSmaregi ECPossibleName, Email address, Phone number, Postal address, User or member ID, Password, CredentialsNot disclosed
1MinorIzutsu MaisenApplyNow recruitment platformInvestigating—Not disclosed
2LowFinesReservation systemPossibleName, Email address, Phone numberabout 1,540,000 records
4HighHelpfeelGyazoConfirmedEmail address, User or member ID, Password, Credentialsabout 23,620,000 records
1MinorOsaka City Museum of Fine ArtsConfirmedName, Email address30 people
5CriticalEPARK Relax & EsthetiquePeakManager customer databaseConfirmedName, Email address, Phone number, Postal address, Date of birth, Health informationabout 22,180,000 records
1MinorLand HousingViewing reservation systemInvestigating—Not disclosed
1MinorTaikishaMalaysian group companyInvestigating—Not disclosed
4HighJGC DigitalAzas / SuloopConfirmedName, Email address, Date of birth, Health informationabout 40,000 accounts
3MediumNichirei GroupConfirmedName, Email addressNot disclosed
2LowChibagin ShotenCorporate websitePossibleName, Email address, Phone number, Postal address, User or member ID, Payment detailsabout 7,670 records
1MinorMinami Nihon Information Processing CenterInvestigating—Not disclosed
2LowScore JapanInvestigating—Not disclosed
1MinorGMO Trust LoginCloud storageConfirmedName, Email address, Phone number, Postal addressNot disclosed
1Minoristyle@cosmePossibleEmail address, User or member ID10,997 people
2LowAino-kaze Toyama RailwayPossibleName, Email address, Phone number, Postal address1,409 people
1MinorRohto PharmaceuticalCustomer support systemInvestigating—Not disclosed
1MinorOsaka CityRecorded interview systemPossibleName, Email address, Phone number106 people
4HighLEAN BODYConfirmedName, Email address, User or member ID, Date of birth, Password, Payment details, Health informationabout 440,000 accounts
4HighMurauchi.comConfirmedName, Email address, Phone number, Postal address, Date of birth7,716,811 records
2LowLife Insurance Association of JapanContract inquiry systemPossibleName, Email address, Phone number, Postal address, Date of birth27,407 people
2LowHalmekHALMEK upConfirmedUser or member ID, Password1 people
1MinorDigital AgencyGovernment Solution ServicePossibleName, Email address, Phone number, Postal addressabout 236,000 records
4HighHealing PaperUnniConfirmedName, Email address, Phone number, User or member ID, Date of birth, Payment details, Health information219,646 people
1MinorFuso DentsuPossibleName, Phone number, Postal address26,489 records
3MediumSakura InternetRental serverPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password1,360,563 accounts
1MinorKamogawa CityFurusato tax surveyPossibleName, Phone number, Postal address218 people
1MinorOsaka Municipal Elementary SchoolGrowth curve documentsNo leakName, Date of birth, Health information18 people
1MinorRikkyo UniversityEmail accountsConfirmedName, Email address1 people
1MinorREVISIOPossibleName, Email address, Phone numberNot disclosed
1MinorOsaka CityLifelong Learning Center emailNo leakEmail address168 people
1MinorNagasaki CityMy Number card express issuance documentsInvestigating—Not disclosed
1MinorKyoto Sanga F.C.Fan clubNo leakName, Postal address, Date of birth15,612 people
1MinorFive FoxesPossibleName, Postal address, Date of birthNot disclosed
1MinorInstitute of Science TokyoIT infrastructurePossibleName, Email address, Postal addressNot disclosed
3MediumCo-op YamaguchiLINE mini appPossiblePayment details143,000 records
1MinorMeitetsu KyoshoInvestigating—Not disclosed
2LowSeibu Railway52 Seats of BlissPossibleName, Email address, User or member ID, Health informationabout 500 people
3MediumKind AllE-commerce siteConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password136,464 people
2LowDAIKO NEXT LINKInvestigating—Not disclosed
1MinorTRUNKPossibleName, Email address, Postal addressNot disclosed
3MediumPaperlogicpaperlogicInvestigating—Not disclosed
1MinorMitsui FudosanPossibleName, Email addressup to 19,000 records
2LowCharm HontenPossibleName, Email address, Postal address, PasswordNot disclosed
1MinorAndoh HazamaInvestigating—Not disclosed
2LowMandarakeMail-order shipping dataPossibleName, Email address, Phone number, Postal addressNot disclosed
2LowT&K TOKAInvestigating—Not disclosed
3MediumCoronaPartly confirmedName, Phone number, Postal address, Passwordabout 24,000 people
4HighYellow HatOnline service reservationConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password1,797,124 people
3MediumCINRACINRA JOBPartly confirmedName, Email address, Phone number, Postal address, Date of birth, Credentials21,508 people
2LowZurich InsuranceZ-DashPossibleName, Email addressup to 1,668 people
2LowInexCloud servicePartly confirmedName, Email address, Phone number, User or member ID, Password373 records
1MinorRakuten Books NetworkInvestigating—Not disclosed
2LowN.E. ChemcatPartly confirmedName, Email address, Phone number, Postal address, Date of birthNot disclosed
2LowKotaInvestigating—Not disclosed
3MediumJEXPossibleName, Email address, Phone number, Postal address78,979 records
1MinorWeblifeOEM website builderPossibleEmail addressNot disclosed
2LowWeleda JapanInvestigating—Not disclosed
1MinorGHPClub Chapel HotelsPossibleName, Email address, Phone numberNot disclosed
1MinorKyoiku SoftwarePossibleName, User or member ID4,627 records
2LowLogic VainConfirmedName, Email address, Phone number, Postal address17,559 people
2LowKaga Solutions NetAcademico NaviConfirmedPostal addressabout 166,000 people
1MinorRyomo SystemsInvestigating—Not disclosed
2LowAkabu EngineeringInvestigating—Not disclosed
1MinorYonexOfficial online shopPossibleName, Postal address, Date of birth1 people
2LowGodai KaihatsuIsabo NetPossibleName, Email address, Phone number, Postal address, PasswordNot disclosed
1MinorDigital AgencyNational qualification systemNo leakName150 people
2LowInnovationGitHubConfirmedName, Email address, Phone number62,689 people
1MinorLe AngeBAND business chatPossibleName, Email address, Phone number, Postal address, Date of birthNot disclosed
1MinorNiceEmailPossibleName, Email address, Phone number, Postal addressabout 2,400 records
1MinorKyodo NewsPossibleName, Email addressabout 6,000 records
1MinorSodickPossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorChubu Electric PowerInvestigating—Not disclosed
1MinorMankasouOnline shopInvestigating—Not disclosed
1MinorKaigetsukan GroupPossibleNameNot disclosed
3MediumDaisenInvestigating—Not disclosed
2LowKodanshaConfirmedName, Email address, Credentialsup to 3,812 records
1MinorM&S Food ServiceMiyamoto Munashi takeout siteInvestigating—Not disclosed
1MinorFrau InternationalPossibleName, Email address, Phone numberNot disclosed
5CriticalE-StoreShopServeConfirmedName, Email address, Phone number, Postal address, User or member ID, Password, Payment details, Credentialsabout 23,356,000 people
1MinorJapan Accreditation BoardInvestigating—Not disclosed
1MinorALSOK JoylifeBellpage Nara AyameikePossibleName, User or member ID, Date of birth134 records
2LowTokyo Metropolitan Small and Medium Enterprise Support CenterBusiness support siteInvestigating—Not disclosed
2LowSen Co.Hai Cheese PhotoConfirmedName, Phone number, Postal addressNot disclosed
5CriticalAflac Life InsuranceConfirmedName, Phone number, Postal address, Date of birth, Payment detailsabout 4,400,000 people
3MediumOsaka PrefectureOsaka Business PortalConfirmedName, Payment details15 records
2LowTakara TomyDuel Masters support appPossiblePostal address, User or member ID, Date of birthup to 155,000 people
1MinorHokkaido Kyodo Kumiai TsushinshaPossibleName, Phone number, Postal addressNot disclosed
1MinorCSMInvestigating—Not disclosed
2LowAxcelead Drug Discovery PartnersConfirmedCredentialsNot disclosed
1MinorShin FA ComOkaya GroupInvestigating—Not disclosed
3MediumSeidensha Electronic IndustryInvestigating—Not disclosed
5CriticalKDDIISP email platformConfirmedEmail address, User or member ID, Password12,231,954 people
5CriticalSunoConfirmedName, Email address, Phone number, Postal address, Payment detailsabout 55,280,000 records
2LowMedia4uConfirmedName, Email address22,928 records
3MediumAsahi GroupPossibleName, Email address, Postal address, Date of birthNot disclosed
1MinorGovTech TokyoTokyo AppConfirmedName, Email address, Phone number1 people
3MediumK9 Natural JapanConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Credentials78,763 records
2LowNihon KotsuInvestigating—Not disclosed
2LowFukuoka UniversitySMART SPIPossibleName, User or member ID, Date of birthup to 33,668 people
1MinorKyushu Electric Power Transmission and DistributionExternal storage mediaInvestigating—Not disclosed
1MinorNihon UniversityStudent and alumni emailPossibleUser or member ID, Password9 people
2LowWasabiWASABI SWITCHConfirmedUser or member ID, Password, CredentialsNot disclosed
1MinorUnimat LifeNo leakName, Email address, Phone number, Postal address126,947 people
1MinorJA Sapporo / Norinchukin BankNo leakPostal address, User or member ID, Payment details3,176 records
1MinorIshikawa Computer CenterPossibleEmail address14,071 records
1MinorMiyagi PrefectureIshinomaki High SchoolInvestigating—Not disclosed
3MediumMarutakeInvestigating—Not disclosed
1MinorSoftsuPossiblePhone number159,850 records
1MinorGendai ButsudanInvestigating—Not disclosed
2LowDelightfulMeruhai-kunInvestigating—Not disclosed
4High2rinkan Yellow HatConfirmedName, Email address, Phone number, Postal address, User or member ID, Date of birth, Passwordabout 3,180,000 people
1MinorMikasaPossibleName, Email address, Phone number, Postal address, Date of birthNot disclosed
1MinorKomatsuPossibleName, Email addressabout 139,000 people
1MinorFactory Japan GroupInvestigating—Not disclosed
2LowAct-SenWork management systemPossibleName, Email address, Phone number, User or member ID, Date of birth, Password, ID documentsNot disclosed
3MediumSagahirakawayaOnline shopPossibleName, Email address, Phone number, Postal address, Date of birth, Payment details30,170 people
1MinorD&MPossibleName, Phone number, Postal address633 records
1MinorNippon TelenetPossibleEmail addressNot disclosed
2LowKaizen Tech AgentPossibleName, Email address, Phone number, Postal address, Date of birth, Payment details, Health informationup to 9,721 records
1MinorCKC NetworkPossibleName, Email address, Phone number, Postal address, User or member IDabout 664,000 records
1MinorEn JapanMiddle no TenshokuInvestigating—Not disclosed
2LowShokusouInvestigating—Not disclosed
3MediumVisual ArtsPartly confirmedName, Email address, Phone number, Postal address, Date of birth, Credentials, My Number (national ID)Not disclosed
1MinorJapan Medical Management Consultants AssociationIwate branch emailPartly confirmedName, Email address1,051 accounts
2LowFujita Health University HospitalStaff personal laptopPossibleName, User or member ID, Date of birth, Health informationNot disclosed
1MinorAwa BankInvestigating—Not disclosed
1MinorCAMPFIREInvestigating—Not disclosed
1MinorCareer Design CenterOnna no Tenshoku typeInvestigating—Not disclosed
3MediumAsoviewsatsuki reservation systemConfirmedName, Email address, Phone number, Postal address, Date of birth, Payment details, Credentials111 records
1MinorPolaris HoldingsBooking.com accountInvestigating—Not disclosed
2LowYamada Body KogyoshoPartly confirmedName, Email address, Phone number, Postal address, PasswordNot disclosed
1MinorTokyo Metropolitan Bureau of Public Health and Medical ServicesNursing student loan systemPartly confirmedName, Phone number, Postal addressNot disclosed
2LowTokyo Metropolitan GovernmentTokyo Digital AcademyConfirmedName, Email address, Passwordup to 2,438 people
4HighAnabuki Housing ServicePartly confirmedName, Email address, Phone number, Postal address, Date of birth, Payment details, Health information, ID documents207,773 records
1MinorYCC Information SystemsYamagata City and other municipalitiesInvestigating—Not disclosed
2LowMiura Co.Partly confirmedPassword5,021 records
4HighUniversal Music JapanEC sitesConfirmedName, Email address, Phone number, Postal address, Date of birth3,105,585 records
2LowAisan TechnologyCorporate websiteInvestigating—Not disclosed
1MinorCS AccountingInvestigating—Not disclosed
2LowJapan Asset Research InstituteInvestigating—Not disclosed
2LowMedica PublishingConfirmedCredentialsNot disclosed
2LowTokyo Hoso KogyoPossibleName, Email address, Postal address, Date of birth, Payment detailsNot disclosed
3MediumOriental DiamondPartly confirmedName, Phone number, Postal addressNot disclosed
1MinorNihon Arcadia NetworkInvestigating—Not disclosed
1MinorHigashiyama SangyoConfirmedName, Phone number, Postal addressNot disclosed
2LowHokuyoInvestigating—Not disclosed
1MinorEnesance GroupInvestigating—Not disclosed
1MinorEastInvestigating—Not disclosed
3MediumMoney ForwardGitHubPartly confirmedName, Payment details, Credentials370 records
2LowTohoku UniversityServers and hospital trial NASPossibleName, Email address, User or member ID, Health informationNot disclosed
1MinorToyota Mobility PartsJames member dataPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birthNot disclosed
1MinorIelove GROUPCloud servicePossibleName, Email address, Phone number, Postal addressNot disclosed
1MinorAlps AlpineVPN systemPossibleName, Email address, User or member IDNot disclosed
2LowBonformOnline storePossibleName, Email address, Phone number, Password, Payment details3,268 people
1MinorTokyo KeikiInvestigating—Not disclosed
4HighMurata ManufacturingPartly confirmedName, Email address, Phone number, Postal address, Date of birth, Payment details, Health informationabout 73,000 records
4HighCanetCustomer My PagePartly confirmedPassword, My Number (national ID)10,981 people
1MinorCo-op IshikawaPossibleName, Phone number, Postal addressNot disclosed
1MinorESPECPossibleName, Email address, CredentialsNot disclosed
2LowIbidenInvestigating—Not disclosed
2LowUPSIDERInvestigating—Not disclosed
1MinorNippon Yusen Kabushiki Kaisha (NYK)Ship fuel procurement systemPossibleName, Email address, Phone numberNot disclosed
1MinorSystemsoftInvestigating—Not disclosed
1MinorF-OnePossibleName240 people
1MinorTohoInvestigating—Not disclosed
1MinorResonus Face Clinic TokyoInvestigating—Not disclosed
1MinorWaveWeb upload servicePossibleName, Email address, User or member IDup to 176,810 records
3MediumConsumer Affairs AgencyConfirmedName, Date of birth, My Number (national ID)8 people
1MinorMynaviCloud service used by MynaviPossibleName, Email address, Phone number, Postal address111,505 records
3MediumZettonforty three old emailPartly confirmedName, Email address, Phone number, Postal address, Credentials, Health informationNot disclosed
1MinorJEMSPossibleCredentialsNot disclosed
2LowZynasJoyfull employee and applicant dataPossibleName, Postal address, User or member ID, Date of birth, Payment details, Health information1,191 people
3MediumHakubai Toyooka HospitalHakubai Toyooka Care HomeInvestigating—Not disclosed
1MinorSigndBeautyMeritPossibleName, Email address, Phone numberNot disclosed
2LowOmikenshiInvestigating—Not disclosed
2LowCACAcademic Support NaviPossibleName, Email address, Postal address, Date of birthNot disclosed
1MinorHotel Princess KyotoExpediaPartly confirmedName, Phone numberNot disclosed
1MinorMazdaParts warehouse management system, ThailandPossibleName, Email address, User or member ID692 records
1MinorNHKInformation system registrantsNo leakEmail address32,940 people
2LowInternational Budo UniversityConfirmedName, Phone number, Postal address, User or member ID, Date of birthabout 120 people
1MinorIwatani CorporationGroup systemsInvestigating—Not disclosed
2LowNittai Kogyo and N TradingPossibleName, Email address, Phone number, Postal address, Date of birth, Password3,887 records
3MediumNippon Swagelok FSTInvestigating—Not disclosed
1MinorMarimo HoldingsConfirmedName, Email address, User or member IDabout 1,360 people
1MinorOAG Consulting GroupChatworkInvestigating—Not disclosed
1MinorWhite EssenceMeguriPossibleName, Email address, Phone number, Postal address, User or member ID, PasswordNot disclosed
1MinorAdvantestInvestigating—Not disclosed
1MinorKanehara ShuppanRinken Kokushi OnlinePossibleEmail address160 records
1MinorYakunichidoContractor mail filtering servicePossibleEmail addressNot disclosed
1MinorTombo BeverageInvestigating—Not disclosed
3MediumNippon Medical School Musashi Kosugi HospitalConfirmedName, Postal address, Date of birthabout 130,000 people
1MinorJihouCloud emailPossibleEmail addressup to 890 records
1MinorSanto Sanyo PrintingInvestigating—Not disclosed
2LowMino KogyoPossibleName, Email address, Postal address, Date of birth, Health informationNot disclosed
1MinorJOGMECConfirmedName2,246 people
2LowAt HomeMoving quote servicePossibleName, Email address, Phone number, Postal address408 records
3MediumBEENOSSekaimonPossibleName, Email address, Phone number, Postal address, User or member ID, Date of birth, Password, Payment detailsNot disclosed
1MinorNishiyama SeisakushoInvestigating—Not disclosed
1MinorDoro KogyoPossibleName, Email address, Phone numberNot disclosed
1MinorFeatureInvestigating—Not disclosed
3MediumGala YuzawaPossibleName, Phone number, Postal addressup to 1,518 people
2LowAdeccoFreelance SES matching serviceInvestigating—Not disclosed
2LowIntegralPossibleName, Email address, Phone number, Postal addressup to 5,441 records
2LowKanbasMy pageInvestigating—Not disclosed
3MediumYamamoto ShihoshaPackage Shop JPPartly confirmedName, Email address, Phone number, Password, Payment details3,973 people
2LowSoftBankLine authentication and messagingConfirmedName, Email address, Phone number, Postal address, Date of birthNot disclosed
3MediumIntellexJust CurtainPossibleName, Email address, Phone number, Postal address, Date of birth, Password, Payment details60,663 people
3MediumSincereInvestigating—Not disclosed
2LowCocoloniConfirmedEmail address, PasswordNot disclosed
2LowSTNetDedicated network servicePossibleName, Email address, Phone number, User or member ID, Date of birth, Password20,846 people
2LowSchool Library Book Maintenance AssociationInvestigating—Not disclosed
1MinorJR Kyushu GroupPossibleName, Email address, User or member ID14,638 people
1MinorENEOS Globe EnergyPossibleName, Phone number, Postal addressabout 1,300 records
1MinorSakai CycleCycle HeroInvestigating—Not disclosed
1MinorSmaregiInvestigating—Not disclosed
2LowOkinawa Prefectural College of NursingAcademic affairs systemInvestigating—Not disclosed
2LowTokyo Metropolitan UniversityFaculty Google accountPartly confirmedName, Email address, Phone number, Postal address, User or member ID, CredentialsNot disclosed
3MediumKowa EmoriInvestigating—Not disclosed
1MinorMizuho LeasingInvestigating—Not disclosed