To permanently delete your OKX account, log in via the app or website. Go to Security Settings > Account Management > Close Account. Select the reason for closing, confirm that you understand the consequences, and proceed. Make sure to withdraw all assets and clear any balances before deletion. You'll need to verify the request using SMS, email, or two-factor authentication. Once confirmed, your account will be permanently deleted and cannot be recovered. This action is final and irreversible.