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Data breaches

Data breaches

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945 results
Title / subjectOrganizationsVerificationReported impactDisclosed
7NOW delivery-customer data exposed through contractor株式会社セブン‐イレブン・ジャパンConfirmedUnknown2026-11-03
Kinko's Japan: smart-membership email addresses leaked via Arara breachキンコーズ・ジャパンConfirmedUnknown2026-11-02
Life Corporation: point-card data in the official app may have been viewed after intrusion (298 records)ライフコーポレーションInvestigating298 Records2026-11-02
ManpowerGroup Japan: 158,600 email addresses leaked via Arara service used by a contractorマンパワーグループConfirmed158,600 Records2026-11-02
Subway Japan: newsletter member data leaked via Arara breach (up to 1,107,494)WATAMI FAST CASUAL MANAGEMENTConfirmedUnknown2026-11-02
Ryobi Bus: 43,221 newsletter email addresses leaked via Arara breach両備バスConfirmed43,221 Records2026-11-02
Fukui Shimbun: 11,084 Fukui Shimbun Passport member email addresses leaked via Arara breach福井新聞社Confirmed11,084 Records2026-11-02
Suntory group external-cloud data breachサントリーホールディングス株式会社ConfirmedUnknown2026-11-02
Hokuriku Electric: about 550,000 Hokulink member email addresses leaked via mail-service breach北陸電力ConfirmedUnknown2026-11-02
Marui Group: customer data leaked via Securitize Japan digital-bond vendor breach (up to 9,086 people)丸井グループConfirmedUnknown2026-11-02
Bank of the Ryukyus: 96,477 customer email addresses leaked via Arara repica琉球銀行Confirmed96,477 Records2026-11-02
Odakyu Travel: 63,006 member email addresses leaked via Arara breach小田急トラベルConfirmed63,006 Records2026-11-02
istyle @cosme: data of about 3 million common-ID members leaked after unauthorised accessアイスタイルConfirmedUnknown2026-11-02
Kobe Shimbun: about 40,000 newsletter email addresses leaked via Arara breach神戸新聞社ConfirmedUnknown2026-11-02
Cotton Incorporated: user database export exposed and downloadedCotton IncorporatedConfirmedUnknown2026-11-02
ENEOS: car-lease customer data leaked via Prestige Core Solutions vendor breach (up to 8,500 contracts)ENEOSConfirmedUnknown2026-11-02
Skymark: employee and former-employee personal data left viewable; possible leakスカイマークInvestigatingUnknown2026-11-02
U Co-op: 210,495 email addresses leaked from Arara repica serviceユーコープConfirmed210,495 Records2026-11-02
Prestige International: up to about 5.5 million roadside-service records taken株式会社プレステージ・インターナショナルConfirmedUnknown2026-11-02
Mizkan: recipient names, addresses and phones may have leaked via Sagawa Express tracking-service breachMizkanInvestigatingUnknown2026-11-02