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BLeak confirmedMarch 16, 2026 announced

株式会社ユナイテッドアローズ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
January 4, 2026
Announced on
March 16, 2026
Severity
BIncidents centered on names and contact details.
Scale
10,000 people
Main impact
A former employee removed electronic data, including transaction-partner lists for 約1万人分, from a cloud service. The data included contact information such as names, employers, departments, phone numbers, email addresses, and business office addresses.
Information involved
Full namePhone numberEmail addressHome address
Cause / key point
Data removal from a cloud server by a former employee and inadequate measures to prevent external data exfiltration.
Industry
Retail & e-commerce
Listing / capital
Listed company東証プライム 7606(ユナイテッドアローズ)
Sources
Last updated
October 20, 2026

Stock price reaction to the disclosureユナイテッドアローズ / 東証プライム 7606

2026.02.24 〜 2026.04.06Loading…

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.

Full namePhone numberEmail addressHome addressHow severity is assessed →

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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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