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JAENES
BPossible leakNovember 9, 2026 announced

技研製作所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
November 5, 2026
Announced on
November 9, 2026
Severity
BIncidents centered on names and contact details.
Scale
3,200 people
Main impact
Unauthorized access to a business server resulted in records for approximately 3,200 individuals — names, company names, department/position, email addresses, phone numbers, employee numbers, etc. — being stored there, and customer support system login IDs and encrypted passwords were included; it has been announced that this information may have been stolen.
Information involved
Full nameEmail addressPhone numberUser / member IDPassword
Cause / key point
Compromise of the business server due to external unauthorized access that included ransomware.About Ransomware
Industry
Manufacturing
Sources
Last updated
November 10, 2026

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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)

Read the Ransomware guide and national trends →

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