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Disclosed Oct 14, 2026. Per Arcadia report on the disaster-notification system, 5,501 registrations (registered name/email/phone/FAX) may have leaked. New sign-ups/changes stopped; alert delivery continued.
Disclosed Oct 14, 2026. SpeeCAN RAIDEN emergency/disaster services may have exposed contact name/email/phone-FAX and saved message bodies. Related pages also cover Raiden School and Net119. No headcount.
Disclosed Oct 14, 2026. Arcadia SpeeCAN RAIDEN air-pollution mail/phone services may have exposed emails and phone numbers. Multiple services include a Mar-2026 end count of 6,321 photochemical-smog mail registrations, but latest totals are still being confirmed → blank.
Disclosed Oct 14, 2026. SpeeCAN RAIDEN (Arcadia) intrusion may have exposed emergency delivery (22 citizen phones / 12 facility FAX) and 1,218 staff-assembly mail records (name/unit/staff-id/email). Subsets not summed.
Disclosed Oct 14, 2026. SpeeCAN RAIDEN mass notification for disaster/missing-person alerts stopped after intrusion; personal data may have leaked. No headcount.
Disclosed Oct 14, 2026. SpeeCAN RAIDEN (Arcadia) intrusion may have exposed auto disaster-delivery (name/email/phone/FAX) and “Moratte Anshin” disaster-delivery (email) registrants. No headcount; service continued.
Disclosed Oct 14, 2026 (confirmed Oct 13). SpeeCAN RAIDEN (Arcadia) intrusion may have exposed registrant emails and staff registrant names. No headcount.
Disclosed Oct 14, 2026. Commune intrusion may have exposed email, member ID, icon, nickname, bio, profile, points and groups for 750 Kotoportal members (749 with email). Passwords/name/address/phone/payment and main-game accounts out of scope.
Disclosed Oct 14, 2026. Arcadia intrusion into staff-assembly systems may have exposed prefecture-registered staff data. No resident data registered. About-style subsets → blank.
Disclosed Oct 15, 2026 (vendor notice Oct 13). SpeeCAN RAIDEN (Arcadia) intrusion may have exposed FAX numbers or emails. No headcount.
Disclosed Oct 14, 2026 (PDF body read). SpeeCAN RAIDEN (Arcadia) intrusion may have exposed a gross 4,957 records across staff/disaster/infant-checkup/vaccination and other mail services (email/phone/FAX/name/DOB etc.). “Gross/延べ” → blank.
Disclosed Oct 14, 2026. SpeeCAN RAIDEN (Arcadia) emergency-notification intrusion may have exposed personal data. Ono safety mail and Hyogo Bosai Net are out of scope. No headcount.
Disclosed Oct 14, 2026 (PDF body read). SpeeCAN RAIDEN (Arcadia) intrusion may have exposed personal data. New sign-ups stopped. No headcount.
Disclosed Oct 14, 2026 (updated Oct 15). Arcadia-operated Kizugawa disaster-info mail may have exposed name/email/phone/FAX. No headcount.
Press release Oct 14, 2026. Tanpopo Mail (SpeeCAN RAIDEN) emergency-stopped; personal data may have leaked. No headcount.
Disclosed Oct 14, 2026 after Oct 7 Commune report. Up to 4,103 people (members and community staff) may have had member ID, account name, email, sex, prefecture, purchase/usage history and survey/preference data viewed/taken. No cards. No Mazda system impact.
Press release Oct 14, 2026 18:00 (page updated Oct 15). Arcadia-provided Net119 intrusion may have exposed data on 557 registrants (as of Oct 14).
Disclosed Oct 14, 2026. Arcadia intrusion may have exposed Hiro-mail (email/some names), staff-assembly (name/unit/email/some phones), elderly-call (name/phone), and 119RAIDEN fire-corps mail (name/email/unit). No headcount.
Disclosed Oct 14, 2026. 119 RAIDEN (Arcadia) intrusion may have exposed published total 493 records: 90 fire staff / 387 fire corps / 16 gas-company (name/email; 15 also phone).
Disclosed Oct 14, 2026 (resume note Oct 15). Disaster-mail registered emails may have leaked. No headcount.