Overview
The September 30–October 1 intrusion potentially affected eight inquiry records including names, companies, emails and messages. Actual acquisition remains unconfirmed.
Timeline
- Occurred
- Discovered
- Disclosed
Initial company disclosure. See sources for details and updates.
Organization response
Studio remediated the vulnerability and Dentsu contacted affected individuals.
What you can do
Avoid links and attachments in suspicious messages.
Sources
- Studio株式会社への不正アクセスに伴う個人情報漏えいの可能性について株式会社電通 · 2026-11-09