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JAENES
APossible leakJune 22, 2026 announced

株式会社ソフツー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
June 22, 2026
Severity
AFinancial and HR records — information that easily translates into monetary damage.
Scale
159,850 records
Main impact
There was unauthorized access to a verification server for call quality analysis, and index data for searches was deleted. 159,850 phone numbers and call transcriptions, etc., have been reported as affected.
Information involved
Phone number
Cause / key point
Index data on the verification server was deleted due to unauthorized access.
Industry
IT & telecom
Listing / capital
Unlisted
Sources
Last updated
October 20, 2026
Phone numberHow 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: Unauthorized access (method undisclosed)(Breached, but the technique was not identified or disclosed)

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