and US（Studio問い合わせフォーム）Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- October 19, 2026
- Severity
- AFinancial and HR records — information that easily translates into monetary damage.
- Scale
- 1,024 records
- Main impact
- and US announced that, following unauthorized access to Studio, 1,024 inquiry records from its corporate and recruitment site (including corporate contact information) may have been leaked, and has taken the inquiry page offline.
- Information involved
- Not specified in the disclosure
- Cause / key point
- It is believed to have been caused by unauthorized access to Studio.
- Industry
- IT & telecom
- Listing / capital
- Unlisted
- Last updated
- October 20, 2026
Is this incident worth paying attention to?
Written & reviewed
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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Same attack method
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Same industry
- SSEストアー(ショップサーブ)2026.10.16 announced・Affected 23,356,000 people
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Attack method classification: Unauthorized access (method undisclosed)(Breached, but the technique was not identified or disclosed)
Read the Unauthorized access (method undisclosed) guide and national trends →