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Data breaches

Search incidents by company, country, industry, year and attack method. Review affected data, impact, verification status, company responses and sources.

1169 results
CardsTable
Title / subjectOrganizationsVerificationReported impactDisclosed
Niigata City Yamagata JH: health and dental records for 387 students lost新潟市Confirmed387 People2026-08-31
Mandarake: server intrusion may have exposed mail-order customers’ shipping dataまんだらけInvestigatingUnknown2026-08-30
Yellow Hat: data of 1,797,124 members exfiltrated from web service-booking systemイエローハットConfirmed1,797,124 People2026-08-28
McKesson reports exfiltration from certain third-party applicationsMcKesson CorporationConfirmedUnknown2026-08-28
Corona: construction-info cloud intrusion may have exposed up to 35,000 customersコロナInvestigatingUnknown2026-08-28
MHLW: lost minimum-wage survey forms may have exposed personal data on 339 people (gross)厚生労働省Investigating339 People2026-08-28
Bennett College: personal data may have been accessedBennett CollegeInvestigatingUnknown2026-08-28
Kindal: phishing takeover of an EC staff account leaked 136,464 customers’ dataカインドオルConfirmed136,464 People2026-08-28
Co-op Yamaguchi: LINE mini-app DB intrusion may have exposed member and related dataコープやまぐちInvestigatingUnknown2026-08-28
Zurich Japan: dashcam-upload system intrusion may have leaked data on up to 1,668 customersチューリッヒ保険InvestigatingUnknown2026-08-27
ISC: files downloaded from e-signature cloud workspaceIntegrated Specialty CoveragesConfirmedUnknown2026-08-27
COO: Meruhaikun intrusion leaked 2,255 customer email addressesクーConfirmed2,255 Records2026-08-27
CINRA JOB: vulnerability-driven intrusion may have exposed 21,508 members’ dataCINRAInvestigating21,508 People2026-08-27
Indico Data Solutions: customer data in online repositories may have been accessedIndico Data SolutionsInvestigatingUnknown2026-08-27
Tsunagu: corporate-site intrusion may have exposed 157 contact-form submissions繋Investigating157 Records2026-08-27
Actua confirms copying of recruitment and temporary-worker filesACTUAConfirmedUnknown2026-08-26
Nippon Steel Kowa Real Estate: cloud intrusion may have exposed condo-sales customer data日鉄興和不動産InvestigatingUnknown2026-08-26
Nihon University Law: phishing takeover of a staff mailbox may have exposed stored personal data日本大学InvestigatingUnknown2026-08-25
COVER: Hololive OCG site CMS intrusion may have exposed inquiry-form personal dataカバーInvestigatingUnknown2026-08-25
Rakko: misuse of a Stripe live API key may have exposed payment-related data for 100 customersラッコInvestigating100 People2026-08-25