Data Breach Index (A–Z) – A
Explore 202 data breaches in the A group. Open a record for exposed data classes, affected account counts and recommended security steps.
A
A-1 Rent-Alls Alleged Data ExposureA&D Technology Data BreachAbandonia (2015) Data BreachAbandonia (2022) Data BreachAbby Winters 2016 Data BreachAbrigo Business Contact Data Incident (2026)Absolute Dental 2025 Security IncidentAbuseWith.Us Data BreachAcademic Urology & Urogynecology of Arizona Security IncidentAcadia Healthcare 2026 Security IncidentAcadian Ambulance Data Breach (2024)Accenture 2026 Data BreachACCRETECH America Data BreachAcer Data BreachAcikogretim.gen.tr Data Breach 2019ACLA 2025 Data BreachACME Truck Line Data BreachAcne.org Data BreachAction Network December 2019 Alleged Data ExposureActivision Employee Data Incident (2022)Acuity Spam Data ListAdams Health Network Data BreachAdapt B2B Profile Data Incident (2018)AdaptHealth 2026 Data BreachAdboardZ Alleged Data ExposureADDA Data BreachAddi 2026 Data BreachAdecco 2021 Candidate Data IncidentAdemur Optik (Dünyagöz Optik) Data BreachADERE Peneda-Gerês Alleged Data ExposureAdidas Turkey Data BreachAditya Birla Fashion and Retail Data BreachAdobe Data BreachAdopt Me Trading Values Data BreachAdpost Data BreachADT Data BreachAdult FriendFinder (2015) Data BreachAdult FriendFinder (2016) Data BreachAdult-FanFiction.Org Data BreachAdvance Auto Parts Data Incident (2024)Advanced Family Surgery Center Security IncidentAdvantive Data BreachAerServ Data BreachAesto Health 2025 Data BreachAflac Incorporated 2025 Data BreachAflac Japan 2026 Security IncidentAG Energy Australia Alleged Data ExposureAge of Wushu Alleged Data ExposureAgelessRx Data BreachAgoraVale Alleged Data ExposureAgusiQ-Torrents.pl Data BreachAhaShare.com Data BreachAhoyGame 2017 Alleged Data Exposureai.type Data BreachAimware Data BreachAir Canada Data BreachAir Europa Data BreachAir Miles España (Travel Club) Data BreachAitkin County Health and Human Services Data Breach (2026)Ajarn Data BreachAjax Fan Systems Data Incident (2026)AKP Emails Archive (2016) Data BreachAlabama Ophthalmology Associates 2025 Data BreachAlabama Symphony Orchestra Data BreachAlamo Heights ISD Data BreachAlbion Online Forum Data Breach (2020)Alcon Data BreachAlcott HR 2025 Data BreachAldrich Pediatric Dentistry 2026 Data BreachAlexHost Data BreachALIEN TXTBASE Infostealer Log Derlemesi Malware ExposureAligned Orthopedic Partners 2025 Data BreachAlkegen Data BreachAll About Women’s Care Data Breach (2026)All Nippon Airways (ANA) Data BreachAllegheny Health Network Data BreachAllerVie Health 2025 Data BreachAllianz Life Data Incident (2025)AllWomensTalk January 2016 Alleged Data ExposureAlmerys Data BreachAloe Vera India Alleged Data ExposureAlora Data Breach 2018Alpine Agency Data BreachAlpineReplay Data BreachAlta Orthopaedics Data Breach (Scope Not Disclosed)Altenen Data BreachAlternative für Deutschland Data BreachAMA Auctions Alleged Data ExposureAman 2026 Data BreachAmarider Online Alleged Data ExposureAmart Furniture Data BreachAmerican Addiction Centers Data BreachAmerican First Finance Data BreachAmerican Lending Center Data BreachAmerican Tower Business Contact Data Incident (2026)Ameriprise Data Incident (2026)Amgen 2026 Data BreachAmicus Solutions / Fedora Solutions Data Breach (2026)Amkette Alleged Data ExposureAmplitude Studios Data BreachAmtrak Customer Support Data Incident (2026)Anabel Lee Alleged Data ExposureAnalog Devices 2026 Data BreachAnchorage Neighborhood Health Center 2025 Data BreachAndover Eye Associates 2025 Data BreachAndroid Forums 2011 Data BreachAndroidLista 2021 Data BreachAnesthesia Associates of Morristown Data BreachAngel One Data BreachAniLibria Data Breach (2018)Animal Jam 2020 Data BreachAnime-Planet 2016 Data BreachAnimeForum.ru Data BreachAnimeGame 2020 Data BreachAnimeify 2021 Data BreachAnimeLeague 2024 Data BreachAnimoto 2018 Data BreachAnimu Tank Alleged Data ExposureAnita Roddick Alleged Data ExposureANKA April 2025 Data BreachAnne Arundel Dermatology Data Breach (2025)Anon Hackers Alleged Data ExposureAntiPublic Multi-Source Credential ListAny-Time Home Care Data BreachAnyDesk Data BreachApex Spine & Neurosurgery 2025 Data BreachApexSMS Spam/Lead Data ExposureAPK.TW 2022 Data BreachAPOIA.se Data BreachApollo B2B Profile Data Incident (2018)Apolyton Civilization Site Alleged Data ExposureAppartoo 2017 Data BreachAppen 2020 Data BreachAptoide 2020 Data BreachArcher Health 2025 Data BreachArmA3-Life Alleged Data ExposureArmor Games 2019 Data BreachArmy Force Online 2016 Data BreachAroostook Mental Health Center 2026 Data BreachArtificialAiming.net Alleged Data ExposureArtists&Clients 2025 Data BreachArtsy 2018 Data BreachArtvalue 2019 Data BreachAscension 2024 Partner Data BreachAshley Madison 2015 Data BreachASKUL (LOHACO) Data BreachASOS Data BreachAspen Title & Escrow Data BreachAssetMark Data BreachAssociation Nationale des Premiers Secours Data Incident (2026)Assurance Retraite Data BreachAssuranceAmerica 2026 Data BreachAstropid 2013 Data BreachAT&T Identity Dataset Attributed to 2021Aternos 2015 Data BreachAtlantic Brain and Spine 2026 Data BreachAtlas Menu 2026 Data BreachAtlas Quantum 2018 Data BreachAtlas RSPS January 2020 Alleged Data ExposureAtmeltomo 2021 Data BreachAuction-Warehouse Alleged Data ExposureAudi Data BreachAuphan Online Data BreachAura Customer Service and Marketing Data IncidentAustin Plastic & Reconstructive Data BreachAuto-ici Data BreachAutocentrum.pl 2018 Data BreachAutoHotkey Data BreachAUTOSUR 2025 Data IncidentAutotrader Public Listings DatasetAutoZone Data BreachAvast Forum 2014 Data BreachAverhealth/Avertest Email Data Incident (2025-2026)Avosina Healthcare Solutions 2025 Data BreachAvvo December 2019 Credential DatasetAwakenings Center 2025 Data BreachAzadiJobs Alleged Data ExposureAzle Smiles 2026 Data BreachDataset Associated with A Volga GirlDataset Associated with AarinFantasyDataset Associated with ABC.net.auDataset Associated with AccountGearDataset Associated with Admin Discussion ForumDataset Associated with Admission AdsDataset Associated with Aerials & Cable EquipmentDataset Associated with AimJunkiesDataset Associated with Aipai.comDataset Associated with AlbertsonsDataset Associated with AllMyFavorites.netDataset Associated with AmlaanDataset Associated with Annunci69.itDataset Associated with ArtNowDataset Associated with Aspkin’s WorldDataset Associated with asuslaptop.co.ukDataset Associated with AtletasNowDataset Associated with AusCraftDataset Associated with Avito.maExact Sciences Data BreachExposed Database Finding Associated with ActMobileRootsWeb 2015 Data BreachUK ACRO Criminal Records Office Data BreachUnverified Data Source