Step 1
Sort out your phone and contact details
What to understand
A Korean number — or a reliable way to be reached — touches almost everything: bank apps, ID checks, payroll, your landlord, and official notices.
What to prepare or check
Note your phone setup, email, address, and an emergency contact, and which services spell your name exactly as it appears on your ID.
What to ask
Ask your school, employer, or bank what phone and contact details people in your situation usually need.
Safety note: Never share one-time codes, app or certificate passwords, or photos of your ID through a link or chat you don't fully trust.