Überblick
The event occurred and was detected on February 10. Potentially accessible data included member names, dates of birth, contacts, addresses, last four card digits/expiry and password hashes, plus some Yahoo! Auctions buyers, employees and warehouse-contractor staff information. No aggregate count is published, so it remains NULL. Service-market countries are not treated as affected countries.
Zeitlicher Ablauf
- Vorfall
- Entdeckt
- Bekanntgegeben
Initial notice of possible data exposure.
Investigation results and affected categories published.
Service resumed with password-reset instructions.
Reaktion der Organisation
Following investigation, containment and remediation, Sekaimon resumed on April 23 with password-reset guidance; its Yahoo! Auctions shop remained suspended.
Was Sie tun können
Check notices through the organisation’s genuine contact channels. Do not enter credentials or payment details through links in unexpected messages.
Quellen
- セカイモンの調査結果と対象情報BEENOS · 2026-11-09
- セカイモンのサービス再開BEENOS · 2026-11-09
- セカイモンへの不正アクセスに関するお知らせBEENOS · 2026-11-09