Renewing

To renew a digital certificate, go to the online banking website of the bank that issued you the digital certificate. You can also renew it from your phone's bank app, although you will probably have to use the Korean-language version to do so.

You will need your bank account number (in your bank passbook), your bank PIN, your secret code card, and of course your expiring digital certificate. You will be asked to set a new password.