Here you can confirm your Square Enix ID and change your password.
Enter the e-mail address registered to your Square Enix account in the specified field below and click "Send."
After your e-mail address has been confirmed, an email containing your Square Enix ID and a URL for changing your password will be sent to you automatically. If you have forgotten the registered e-mail address or are unable to access it, please contact the Square Enix Support Center.