日本酒類販売(東京酒粋)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
- The provider's investigation found no confirmation of data leakage to external parties (per 東京酒粋), and the newsletter will be resumed sequentially after safety is confirmed.
- Information involved
- Not specified in the disclosure
- Cause / key point
- Unauthorized access to the infrastructure server of the email newsletter distribution service. The initial report described it as an incident related to a ransomware attack on IDCフロンティア; intrusion into 東京酒粋's main EC site has not been announced.About Ransomware
- Industry
- Food & dining
- 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
Related incidents
Browse the database →Incidents sharing the same company, service, attack method or industry (grouped automatically from the disclosures).
Incidents related to "フロンティア"
Incidents where the damage spread through the same service or system.
- B東北電力フロンティア(イベント問い合わせフォーム)2026.10.17 announced・Affected 182 records
- BJR東海(JR東海MARKET・いいもの探訪)2026.10.13 announced・Affected 15,000 records
- CスカパーJSAT(スカパー!メンバーズ)2026.10.13 announced・Affected Unknown
- A日本ICTテレコムユーザー協会(eラーニング)2026.10.09 announced・Affected Unknown
- Aビューカード(VIEW’s NET)2026.10.09 announced・Affected 4,030,000 records
- BJR東日本(えきねっと・大人の休日倶楽部)2026.10.09 announced・Affected Unknown
Incidents related to "idc"
Incidents where the damage spread through the same service or system.
- Aサイバー大学(履修登録・授業料手続き)2026.10.08 announced・Affected Unknown
- Aフューチャーショップ(future Scenario Cast・futureCartRecovery)2026.10.08 announced・Affected Unknown
- B株式会社ジュン2026.10.08 announced・Affected Unknown
- SSIDCフロンティア(IDCFクラウド)2026.10.07 announced・Affected 48 records
- S日水物流(ニッスイグループ)2026.10.07 announced・Affected Unknown
- Aポピンズ(予約・スタッフ手配システム)2026.10.07 announced・Affected Unknown
Same attack method
- 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
- Sアフラック生命保険2026.06.30 announced・Affected 4,400,000 people
- 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
- BCKCネットワーク株式会社、株式会社学参2026.06.10 announced・Affected 664,000 records
- Aイズミ(ゆめオンライン・ゆめデリバリー)2026.10.14 announced・Affected 400,000 records
- Aエネサンスグループ2026.05.11 announced・Affected 365,000 records
Same industry
- 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
- SSニチレイグループ2026.09.18 announced・Affected Unknown
- S佐嘉平川屋2026.06.15 announced・Affected Unknown
- Aカルビー(絶品部「やめられない、とまらない」課)2026.10.09 announced・Affected Unknown
- A湖池屋(湖池屋GOGO!ランド)2026.10.09 announced・Affected 1,800 accounts
Attack method classification: Ransomware(Encrypting data and demanding a ransom)
Read the Ransomware guide and national trends →