カルビー(絶品部「やめられない、とまらない」課)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
- Unknown
- Main impact
- Unauthorized access to Commune confirmed to have viewed and obtained fan-site members' email addresses, display names, profiles, etc.; service suspended with reopening date undecided.
- Information involved
- Email addressUser / member ID
- Cause / key point
- Unauthorized access exploiting vulnerabilities in Commune's system.
- Industry
- Food & dining
- Listing / capital
- Listed company東証プライム 2229(カルビー)
- Sources
- Last updated
- October 20, 2026
Stock price reaction to the disclosureカルビー / 東証プライム 2229
Stock information is reference data based on Yahoo Finance and may be delayed. This site does not solicit or advise investment and does not guarantee the accuracy or completeness of this information. We accept no liability for any investment decision based on it.
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
Related incidents
Browse the database →Incidents sharing the same company, service, attack method or industry (grouped automatically from the disclosures).
Incidents related to "commune"
Incidents where the damage spread through the same service or system.
- Aマツダ(CLUB MAZDA COMMUNITY)2026.10.14 announced・Affected 4,103 people
- C渋谷未来デザイン(渋谷未来デザイン COMMUNITY)2026.10.11 announced・Affected 495 people
- SSコミューン(Commune・Commune for Work)2026.10.09 announced・Affected 307,000 people
- Sちとせグループ(ちとせアカデミー)2026.10.09 announced・Affected 843 people
- Aバンダイナムコエクスペリエンス(湾岸ミッドナイト アーケードポータル)2026.10.09 announced・Affected Unknown
- Aダイドードリンコ(dydoいっしょにラボ)2026.10.09 announced・Affected Unknown
Incidents related to "メール"
Incidents where the damage spread through the same service or system.
- B東郷町(地域安心メール・高齢者捜索メール)2026.10.13 announced・Affected Unknown
- Aファイバーゲート(クラウド利用サービス)2026.10.09 announced・Affected Unknown
- A日本能率協会マネジメントセンター(時間〈とき〉ラボ)2026.10.09 announced・Affected 2,950 people
- ALIXIL(すまいひろば・猫壁ひろば)2026.10.09 announced・Affected Unknown
- B森永乳業(マウントカフェ部)2026.10.09 announced・Affected 291 people
- Bヤマハ(ヤマハネットワークエンジニア会)2026.10.09 announced・Affected 1,600 people
Same attack method
- SSソースネクスト2026.10.15 announced・Affected 22,519,960 records
- SSバーガーキング・ジャパン(公式アプリ)2026.10.15 announced・Affected 11,180,000 records
- SS焼肉きんぐ2026.10.05 announced・Affected 10,788,963 records
- Bユミルリンク(メール配信システム)2026.10.19 announced・Affected 9,000,000 records
- SSタイムズカー(タイムズモビリティ)2026.09.25 announced・Affected 6,600,000 accounts
- Sブックオフグループ(ブックオフコーポレーション)2026.10.09 announced・Affected 6,383,279 people
Same industry
- SSライドオンエクスプレス(『銀のさら・釜寅・すし上等』公式サイト・公式アプリ)2026.10.13 announced・Affected 6,500,000 records
- SSニチレイグループ2026.09.18 announced・Affected Unknown
- Sアサヒグループホールディングス2026.07.17 announced・Affected 1,525,000 records
- S佐嘉平川屋2026.06.15 announced・Affected Unknown
- A湖池屋(湖池屋GOGO!ランド)2026.10.09 announced・Affected 1,800 accounts
- A日本酒類販売(東京酒粋)2026.10.09 announced・Affected Unknown
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 →