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Back[ITmedia News] 「コミューン」不正アクセスでLINEヤフー、Sansan、パナソニックでも会員情報漏えいの可能性
[ITmedia News] 「コミューン」不正アクセスでLINEヤフー、Sansan、パナソニックでも会員情報漏えいの可能性
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ITmedia2 hours agoTech2 min readJapanView translation

[ITmedia News] 「コミューン」不正アクセスでLINEヤフー、Sansan、パナソニックでも会員情報漏えいの可能性

Quick Look

品川区が運営する企業向けコミュニティプラットフォーム「Commune」が不正アクセスを受け、約30万7000会員分の情報が漏えいした可能性がある。LINEヤフー、Sansan、パナソニック、ヤマハ、スズキなどが10月9日に影響を公表し、メールアドレスや氏名などの個人情報が第三者に閲覧された可能性があると発表した。

AI-generated summary

Why It Matters

Communeは品川区が運営する企業向けコミュニティプラットフォームで、LINEヤフーのDS.LABやSansanユーザーフォーラム、パナソニックのLUMIXコミュニティなどが利用している。今回の不正アクセスは、外部サービスへの攻撃がサプライチェーンリスクとなる事例として注目されている。

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コミューン(品川区)が運営する企業向けコミュニティプラットフォーム「Commune」が不正アクセスを受け、約30万7000会員分の会員情報が漏えいした可能性がある問題で、同サービスを利用しているLINEヤフーやSansan、パナソニックなどがそれぞれ10月9日、影響を発表した。

「Commune」で交流サイトを運営していたヤマハやスズキも同日、影響を公表している(関連記事:ヤマハ・スズキも漏えいか 交流サイト基盤「コミューン」不正アクセス、計30万会員に影響の恐れ)。

情報漏えいの公表が相次ぐ中、業務で使う外部サービスが攻撃を受けて漏えいにつながるケースも目立ってきている。直近では、スカラコミュニケーションズのFAQシステム「i-ask」への不正アクセスで、利用企業の大和証券やシチズン時計、損保ジャパンなどが顧客情報漏えいの可能性を公表している。(関連記事:損保ジャパン、約6万件漏えいか 大和証券・シチズンと同じ委託先への不正アクセスで)。

LINEヤフー、事業者向け「DS.LAB」でメアドなど漏えい

LINEヤフーで影響を受けたのは、事業者向けデスクリサーチツール「DS.INSIGHT」内のコミュニティ機能「DS.LAB」。

利用者のニックネーム、アカウント名、氏名、自己紹介、アイコン、所属グループ、メールアドレス、カスタムプロフィール項目、ポイント、最終アクティブ日時を、第三者が閲覧・取得した可能性があるという。

Sansanユーザーフォーラムでメアド漏えい、「Eight」などは影響なし

Sansanはユーザー向けコミュニティ「Sansan User Forum」で、1325人分の情報漏えいを確認。メールアドレス、アカウント名(表示名)、自己紹介欄の記載内容、プロフィール画像、本コミュニティー内のグループ所属情報が含まれていたという。

さらに、8687人分のアカウント名(表示名)、自己紹介欄の記載内容、プロフィール画像、コミュニティ内のグループ所属情報が漏えいした可能性があるという。

コミュニティはSansanの各サービスとは独立した外部クラウドサービス上で動いており、「Sansan」「Bill One」「Contract One」「Eight」など自社サービスへの影響はない。

パナは「LUMIXコミュニティ」など

パナソニックは、「LUMIXコミュニティ」の約2000人と「ヘアサプ by Panasonic Beauty」の約3000人について、メールアドレスを含む会員情報が漏えいしたとコミューンから報告を受けたという。

同社や関係者を装ったメールによる詐欺などに注意を呼び掛けている。

この記事の著者

関連記事

What to Watch

AI outlook — possibilities, not facts

  • 個人情報保護委員会から事実関係の調査が行われる可能性がある

    Possible · Within weeks

  • 影響を受けた企業からパスワード変更や二段階認証の呼びかけが続く

    Likely · Within days

Open Questions

  • 不正アクセスの経路と攻撃者の特定は行われているか
  • 漏えいした情報の実際の悪用状況はどうか
  • 今後の再発防止策としてCommune側が取る具体的な対応は何か

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