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JAENES
CPossible leakOctober 23, 2026 announced

トレジャー・ファクトリー（出張買取・トレファク引越の案件管理システム）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 20, 2026
Announced on
October 23, 2026
Severity
CLimited data such as email addresses and identifiers.
Scale
746,277 records
Main impact
Due to unauthorized access to the案件管理システム used for 「出張買取」 and 「トレファク引越」, the company disclosed that 746,277 customers' email addresses (of which 11 also include name and address), 750 names and email addresses of business partners/employees, and 1,000 names and device identifiers of employees, etc. may have been exposed. Payment information such as credit card data and customer information managed by stores/apps were not affected; the company reported to the Personal Information Protection Commission, consulted the police, and plans to resume the system around 10月28日.
Information involved
Email addressFull nameHome address
Cause / key point
The incident is believed to be unauthorized access exploiting a vulnerability related to database access in the案件管理システム (confirmed by an access-log investigation on 2026年10月20日).About Exploitation of vulnerabilities
Industry
Retail & e-commerce
Listing / capital
Listed companyTSE Prime 3093(トレジャー・ファクトリー)
Sources
Last updated
October 29, 2026

Stock price reaction to the disclosureトレジャー・ファクトリー / 東証プライム 3093

2026.10.03 〜 2026.10.29Loading…

Stock information is reference data based on Yahoo Finance and may be delayed. This site does not solicit or advise investment and does not guarantee the accuracy or completeness of this information. We accept no liability for any investment decision based on it.

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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: Exploitation of vulnerabilities(Breaking in through holes in software and devices)

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