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JAENES
SSPossible leakOctober 31, 2026 announced

クラブツーリズム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
October 30, 2026
Announced on
October 31, 2026
Severity
SSLarge-scale compromise of sensitive data such as payment or identity-verification records affecting millions.
Scale
4,320,000 records
Main impact
Approximately 4,320,000 member records registered in the online reservation system may have been leaked externally. These may include names, addresses, phone numbers, email addresses, nationality, and emergency contacts, posing a risk of identity fraud and similar harms.
Information involved
Full nameHome addressPhone numberEmail addressUser / member IDDate of birthIdentity verification data
Cause / key point
Possible data exfiltration resulting from part of the server being compromised by unauthorized external access.
Industry
Transport & travel
Sources
Last updated
November 2, 2026

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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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