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JAENES
BPossible leakSeptember 17, 2026 announced

株式会社南日本情報処理センター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
September 17, 2026
Severity
BIncidents centered on names and contact details.
Scale
Unknown
Main impact
The company announced that unauthorized access to the website led to defacement of some pages and that restoration was performed. The number of affected information records has not been disclosed.
Information involved
Not specified in the disclosure
Cause / key point
The company says it implemented countermeasures for the vulnerability that caused the incident, but does not specify the exact vulnerability.About Exploitation of vulnerabilities
Industry
IT & telecom
Listing / capital
Unlisted
Sources
Last updated
October 20, 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: Exploitation of vulnerabilities(Breaking in through holes in software and devices)

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