Disclosed Oct 15, 2026. Possible exposure includes about 21,600 disaster-mail and related phone/FAX/heat-alert/staff-assembly subsets. About/subsets → blank.
Disclosed Oct 14, 2026. Arcadia NET119 intrusion may have exposed registrant data. No confirmed impact on 119 reporting; service continued. No headcount.
Disclosed Oct 14, 2026 (updated Oct 16). SpeeCAN RAIDEN intrusion may have exposed after-school/preschool emergency-mail registrations (guardian/child name/email/DOB/unit etc.). No headcount.
Disclosed Oct 14, 2026. Arcadia intrusion may have exposed published total 524 records across registration mail, emergency phone/FAX delivery, and staff-assembly (email / name-phone-FAX / name-email).
Disclosed Oct 14, 2026. Unauthorized access to the disaster mass-notification service operator may have exposed personal data. Scope under investigation; notice states outflow not confirmed at publication. No headcount.
Possible data leak: Disclosed Oct 14, 2026. Arcadia intrusion targets fire-corps contact-mail registrants; disaster mail and staff-assembly noted separately. No headcount.
First disclosed Oct 14, 2026 (page updated Oct 26). Arcadia-hosted server intrusion may have exposed about 2,900 records (name/email/district). “About” → blank. Reported to PPC on Oct 16.
Disclosed Oct 14, 2026. Log analysis at 05:58 Oct 13 found illicit mypage viewing. Up to 817,215 app members (not LINE/Amazon/Rakuten-only) may have had name/address/phone/email/DOB/sex/occupation/shipping and card last-4/expiry/name viewed. Full card numbers, passwords and purchase actions not leaked/not performed.
Disclosed around Oct 14, 2026 (updated Oct 16). Tachikawa Mimamori Mail (SpeeCAN RAIDEN/Arcadia) emergency-stopped. Possible exposure: email, town name, preferred categories. No headcount.