Data breaches in 2026
Every data breach disclosed in 2026 that we have written up, newest first.
30 reports
Southern California Telephone CompanyUndisclosedTelecomsNot disclosedClaimed, unconfirmedChess.comUndisclosedTechnology4.7 millionConfirmedQuestelSocial engineeringProfessional services1.2 millionConfirmedMcKessonUndisclosedHealthcare6.4 millionConfirmedManchester Airports GroupUndisclosedTravel and transport8.8 millionConfirmedCarharttUndisclosedRetail12.9 millionConfirmedNIUSUndisclosedMedia and entertainment6,090ConfirmedGolf CanadaUndisclosedNon-profit569,000ConfirmedOz Hair and BeautyThird-party breachRetail2 millionConfirmedFanloreUndisclosedNon-profit145,000ConfirmedAlconUndisclosedHealthcare218,000ConfirmedBrinks HomeSocial engineeringOther732,000ConfirmedInter-Con SecurityUndisclosedProfessional services276,000ConfirmedSplitVPNUndisclosedTechnology865,000ConfirmedRingCentralSocial engineeringTechnology1.6 millionConfirmedHouston City CollegeUndisclosedEducation832,000ConfirmedSunoUndisclosedTechnology55.3 millionConfirmedPaidworkUndisclosedTechnology23.3 millionConfirmedExact SciencesSocial engineeringHealthcare10.9 millionConfirmedGoose CreekUndisclosedRetail6.6 millionConfirmedFlukeUndisclosedManufacturing821,000ConfirmedGlendale Community CollegeUndisclosedEducation794,000ConfirmedAmerican TowerUndisclosedTelecoms217,000ConfirmedMoody Bible InstituteUndisclosedEducation2.3 millionConfirmedJCPenneyUndisclosedRetail368,000ConfirmedRalph LaurenUndisclosedRetail140,000ConfirmedCFGIUndisclosedProfessional services248,000ConfirmedSyscoUndisclosedOther2.7 millionConfirmedMadison Square Garden SportsUndisclosedMedia and entertainment9.8 millionConfirmedDentaQuestUndisclosedHealthcare15 millionConfirmed