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JAENES
BPossible leakOctober 16, 2026 announced

LUUP（Webサイトの旧フォーム）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
Unconfirmed
Announced on
October 16, 2026
Severity
BIncidents centered on names and contact details.
Scale
21,368 records
Main impact
Possibly 21,368 submission records from the old web form were leaked. This count includes multiple submissions; LUUP app registration data and the current form are not affected, and actual data retrieval is unconfirmed.
Information involved
Email addressPhone numberHome addressFull name
Cause / key point
Cause is under investigation.
Industry
Transport & travel
Listing / capital
Unlisted
Sources
Last updated
October 20, 2026
Email addressPhone numberHome addressFull nameHow 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: Under investigation / not stated(Cause not disclosed)

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