湖池屋（湖池屋GOGO!ランド）Data breach / unauthorized access incident
- Occurred on
- Unconfirmed
- Announced on
- October 9, 2026
- Severity
- AFinancial and HR records — information that easily translates into monetary damage.
- Scale
- 1,800 accounts
- Main impact
- Announced that up to 1,800 emails, profiles, and other items were leaked. The community was suspended and data restoration was carried out, while some operational logs are expected to be excluded from restoration.
- Information involved
- Email addressUser / member ID
- Cause / key point
- Unauthorized access to contractor Commune.About Supply chain attacks (via vendors & shared services)
- Industry
- Food & dining
- Listing / capital
- Listed company東証スタンダード 2226(湖池屋)
- Last updated
- October 20, 2026
Stock price reaction to the disclosure湖池屋 / 東証スタンダード 2226
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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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Attack method classification: Supply chain attacks (via vendors & shared services)(Compromising the provider instead of the user)
Read the Supply chain attacks (via vendors & shared services) guide and national trends →