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Disclosed Oct 13, 2026. SpeeCAN RAIDEN-backed services may have exposed: disaster mail (47,065 emails), disaster FAX (996 name/phone/FAX/email), disaster phone (11 name/phone/FAX), Yokosuka crime-mail (10,848 emails). Final counts under investigation; subsets not summed.
Delivery of registration mail stopped from 11:00 Oct 13, 2026. Arcadia operator intrusion may have exposed registered emails. No headcount.
Disclosed Oct 13, 2026. SpeeCAN RAIDEN (Arcadia) intrusion may have exposed personal data for city/disaster mail delivery. No headcount. Delivery resumed after safety confirmation.
Disclosed Oct 13, 2026. Arcadia system intrusion may have exposed name and email for 11,618 Minamiboso safety-mail registrants.
Disclosed Oct 13, 2026. Vendor Arcadia reported possible exposure of safety-mail registrant personal data after third-party intrusion. Details/headcount not yet fixed.
Possible data leak: Disclosed Oct 13, 2026 (restart page updated Oct 19). After Arcadia information-mail vendor intrusion, new sign-ups paused then resumed Oct 19 17:00. Notice warns registrants about suspicious mail following the leak risk. No headcount.
Disclosed Oct 13, 2026. SpeeCAN RAIDEN (Arcadia) intrusion may have exposed resident emails; fire-corps name/email/phone; and town-staff name/email. Delivery resumed Oct 19. No headcount.
Disclosed Oct 13, 2026. Arcadia SpeeCAN RAIDEN intrusion may have exposed disaster-mail registered emails. Headcount/scope not yet fixed; investigation ongoing.
An unauthorised actor accessed systems May 22–24, 2025 and copied files.
First notice Oct 13, 2026. Arcadia SpeeCAN RAIDEN intrusion may have exposed Hikone mail-delivery / emergency-call registrant personal data (emails etc.). About 26,000 records.
Disclosed Oct 13, 2026. About 25,566 disaster-mail emails and about 8,593 staff-assembly system records may have leaked. Subsets not summed.
Disclosed Oct 13, 2026. About 7,671 town mail-delivery registrations may have leaked via Arcadia.
Disclosed Oct 13, 2026. Arcadia vendor intrusion may have exposed Imabari fire-mail (email / in-out city / age band), staff-assembly mail (staff name/email) and fire-corps assembly mail (email/name). No headcount. Fire-mail resumed Oct 15.
Possible data leak: Disclosed Oct 13, 2026. Vendor SpeecanRaiden intrusion (Oct 11 16:30; emergency measure Oct 12 03:00). About 1,000 disaster-mail registrations; whether data actually leaked still under investigation.
Disclosed Oct 12, 2026 after Oct 7 Commune report. Intrusion ~19:18–21:02 on Oct 6 may have exposed name, DOB, sex, address, email, member ID, nickname, bio and groups for about 1,600 PAS Life registrants. No cards. No Yamaha Motor system intrusion.
Disclosed Oct 11, 2026. On Oct 6 a Commune admin account was misused; email, nickname and account name for 495 FDS COMMUNITY members may have been viewed.
A Metabase vulnerability was exploited and a copy of some patient data was obtained between August 9 and 12, 2026; it may include names, health-plan details, dates of birth and health information.
Disclosed Oct 9, 2026. Commune intrusion leaked member data including email for about 2,000 LUMIX Community and about 3,000 Hair Sap by Panasonic Beauty members; both communities suspended. Official page returned HTTP403 at research time; body confirmed via IncidentLog summary and press, with the official URL retained as a source.
Commune intrusion Oct 5–6, 2026 may have exposed email, nickname, join date, sex, age band, prefecture and owned-car name for about 3,000 Suzuki Village members. No Suzuki system intrusion. Disclosed Oct 9.
Commune intrusion led to confirmed viewing/acquisition of email, display name, username, bio, profile fields and groups for members registered as of Oct 5, 2026. Password leak not confirmed. No headcount published. Disclosed Oct 9.