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JAENES
SPartial leak confirmedMarch 19, 2026 announced

株式会社ホテルプリンセス京都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
March 19, 2026
Severity
SCompromise of deep personal data or usable credentials.
Scale
Unknown
Main impact
The company reported that an Expedia administrator account was misused and fake messages asking bookers to enter card information were sent, but the number of affected individuals and incidents has not been disclosed.
Information involved
Phone numberFull name
Cause / key point
Misuse of an Expedia administrator account.
Industry
Services & other
Listing / capital
Unlisted
Sources
Last updated
October 20, 2026
Phone numberFull 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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