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JAENES
ALeak confirmedAugust 17, 2026 announced

加賀ソルネット（アカデミコナビ）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
August 17, 2026
Severity
AFinancial and HR records — information that easily translates into monetary damage.
Scale
166,000 people
Main impact
It was announced that addresses, affiliated schools, and purchase information for approximately 16.6万人 records were leaked, and a follow-up report denied any password leakage.
Information involved
Home address
Cause / key point
Unauthorized access exploiting a vulnerability in the e-commerce site's system.About Exploitation of vulnerabilities
Industry
IT & telecom
Listing / capital
Unlisted
Sources
Last updated
October 20, 2026
Home addressHow 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: Exploitation of vulnerabilities(Breaking in through holes in software and devices)

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