Required cookies
Web login uses an `access_token` HTTP-only cookie. This cookie is required for authentication and IP-bound session checks.
LEGAL & PRIVACY
Cookie Settings
Last updated: 2026-09-10
Optional cookies
No advertising cookies are used. Optional analytics are off by default. Enable or withdraw consent in the footer analytics settings; your choice is stored in local storage. A return route may also be stored there for up to 15 minutes to resume navigation after login.
Cookie controls
You can delete cookies in browser settings. Blocking required cookies prevents login, My Page, and computer management from working.
IP changes
Even when the cookie remains, the server rejects authentication and requires email verification if the request IP differs from the session IP.