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JAENES
SPossible leakOctober 8, 2026 announced

アマナ（社内ネットワーク）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
June 18, 2026
Announced on
October 8, 2026
Severity
SCompromise of deep personal data or usable credentials.
Scale
Unknown
Main impact
Unauthorized VPN logins using employee accounts and communications to internal servers were observed; no personal information leakage has been confirmed, but missing logs mean such leakage cannot be ruled out.
Information involved
User / member ID
Cause / key point
Unauthorized VPN login using an employee account.About Abuse of credentials
Industry
IT & telecom
Listing / capital
Unlisted
Sources
Last updated
October 20, 2026
User / member IDHow 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: Abuse of credentials(Logging in legitimately with leaked or guessed passwords)

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