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JAENES
BPossible leakJuly 31, 2026 announced

公益財団法人東京都中小企業振興公社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 31, 2026
Severity
BIncidents centered on names and contact details.
Scale
Unknown
Main impact
The 価格転嫁・賃上げ支援事業サイト experienced unauthorized access, resulting in a partial suspension of site operations.
Information involved
Not specified in the disclosure
Cause / key point
It is reported that unauthorized access caused a partial suspension of site operations.
Industry
Government & municipal
Listing / capital
Government / public body
Sources
Last updated
October 20, 2026
How 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: Unauthorized access (method undisclosed)(Breached, but the technique was not identified or disclosed)

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