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JAENES
BPossible leakOctober 13, 2026 announced

栗山町（防災情報メール）Data breach / unauthorized access incident

笹尾 祐太朗の写真Reviewed by Yutaro SasaoWritten by Leak Watch editorial team published ・ updated
Occurred on
Unconfirmed
Announced on
October 13, 2026
Severity
BIncidents centered on names and contact details.
Scale
Unknown
Main impact
栗山町 has announced that contact data may have been leaked due to unauthorized access to the disaster information email system. No specific number of records is given.
Information involved
Email address
Cause / key point
Contact data may have been leaked due to unauthorized access.
Industry
Government & municipal
Listing / capital
Government / public body
Sources
Last updated
October 20, 2026
Email addressHow severity is assessed →

Is this incident worth paying attention to?

Written & reviewed

笹尾 祐太朗の写真

Reviewed byYutaro SasaoFounder & CEO, MediaLeap Inc.

CEO of MediaLeap Inc. Working on both sides of web advertising and web media since 2013; founded the company in May 2025.

Review scope: cross-checking against primary sources (official and government announcements), verifying claims stay within the facts, and checking source attribution。Last reviewed:

Written by:Leak Watch editorial team (AI-assisted drafts verified against sources by the editorial team) · Reviewer profile · Request a correction

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Attack method classification: Unauthorized access (method undisclosed)(Breached, but the technique was not identified or disclosed)

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