Overview
Applicants for THE Maximum, Haikuras Pocket and Haikuras Big. No bank-specific count (count blank). Deposit account numbers, PINs and ID images not included. This stems from the intrusion into SMBC Consumer Finance's guarantee system (recorded separately); the figure is a subset of that scope and must not be added to it.
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
- 提携先への不正アクセスによるお客さま情報の漏えいについて株式会社大垣共立銀行 · 2026-11-09