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JAENES
SPartial leak confirmedJuly 21, 2026 announced

新エフエイコム(岡谷鋼機グループ)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
July 21, 2026
Severity
SCompromise of deep personal data or usable credentials.
Scale
Unknown
Main impact
A disruption occurred due to a network intrusion and ransomware following theft of account credentials, and it was disclosed that information, including some business partners' personal data, may have been viewed or obtained.
Information involved
User / member IDAuth token
Cause / key point
Unauthorized network intrusion via theft of account credentials.About Ransomware
Industry
Manufacturing
Listing / capital
Unlisted
Sources
Last updated
October 20, 2026
User / member IDAuth tokenHow 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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Attack method classification: Ransomware(Encrypting data and demanding a ransom)

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