You cannot find this number inside the game; you must generate it on the official website.
If you have purchased a physical or digital card to subscribe to the game, the "Serial Number" is the code used to add 60 days of Premium (Subscriber) status to your account.
: Visit the official SWTOR website and log in to your account. swtor serial number
List the currently available at the Security Key vendor.
If you’re looking to play SWTOR:
: If you lose access to your device, you cannot retrieve the old serial number. You must use the "Lost Security Key" link on the login page to remove the key via email verification, then set up a new one to get a fresh serial number.
: Download a mobile authenticator app (like Google Authenticator, Authy, or the official SWTOR Security Key app). Input the serial number provided on the website into the app to complete the sync. Benefits of Using a Security Key You cannot find this number inside the game;
In the context of Star Wars: The Old Republic (SWTOR), a typically refers to the Security Key serial number used to link a physical or digital two-factor authentication (2FA) device to your account . Purpose of the SWTOR Serial Number