Important Notice

Notice Regarding Unauthorized Access to Our Systems

Seven Bank, Ltd. (hereinafter, the "Bank") has confirmed that unauthorized access by a third party occurred on its Residence Card submission website for foreign resident account holders and its account closure application website for Bank account holders.
We have also identified the possibility that customer data stored on the Residence Card submission website may have been exposed externally.

We sincerely apologize for the great concern and inconvenience this incident has caused our customers and all other parties concerned.

1.Overview of the Incident and Our Response

On November 9, 2026, we confirmed signs of unauthorized access by a third party to the Bank's Residence Card submission website for foreign resident account holders and its account closure application website for Bank account holders. Upon becoming aware of the incident, we immediately took measures to prevent further damage, including shutting down the affected systems and blocking access from the source of the attack. The Residence Card submission website for foreign resident account holders and the account closure application website for Bank account holders are currently unavailable.

To date, no unauthorized transactions or activities resulting from this incident, such as remittances, account closures, or data modification or tampering, have been identified. There has been no impact on our major services, including ATM transactions, Internet Banking, and Debit Service.

2.Data That May Have Been Compromised

-The information printed on up to approximately 150 Residence Cards held on the Residence Card Submission Website may have been affected.
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Customers Who May Be Affected:
- ①Customers who completed procedures on the website and were notified of incomplete or insufficient documentation
- ②Customers who completed procedures on the website between October 16, 2026 and November 9, 2026

3.Request to Our Customers

At this time, no misuse of customer information resulting from this incident has been confirmed. However, please remain vigilant, as you may receive suspicious phone calls, emails, or SMS messages impersonating the Bank.

The Bank will never ask for your PIN, password, or authentication code by email or SMS. Please refrain from clicking links in, opening attachments to, or entering personal information in any emails or SMS messages you do not recognize.

Should you receive a suspicious message, please contact us through the inquiry channels below.

4.Future Actions

We will continue to investigate the cause and the extent of the impact and take all necessary measures to prevent a recurrence. The suspended services will be resumed once their safety has been confirmed.
If any new information that should be communicated becomes available, we will promptly provide updates on our website and through other appropriate channels.

Contact Information

Email Inquiries

For Customers Using the Direct Banking Service

＊Logon > Direct Banking Service > Inquiry Form

For Customers Not Using the Direct Banking Service（You will be redirected to the inquiry form.）

Chat Inquiries

Chat serviceHours: Monday–Saturday, 9:00 a.m.–6:00 p.m.

Telephone Inquiries

0120-937-711
Hours: Monday–Saturday, 9:00 a.m.–6:00 p.m.