Overview
"About 11.18 million" (count blank): member IDs, emails, prefecture, gender, birth dates, names and phones. Card numbers are not held; no password leak confirmed.
Timeline
- Occurred
- Discovered
- Disclosed
Organization response
Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.
What you can do
Be wary of emails, SMS or calls impersonating the organisation; do not open links or attachments or enter passwords or card details. Change reused passwords on other services.
Sources
- 不正アクセスによる公式アプリ会員情報漏えいに関するお詫びとお知らせ株式会社ビーケー・ジャパン · 2026-11-09