You can update your password recovery information using this link
https://mysignins.microsoft.com/security-info
You will be required to log in using your SCC Hub credentials and password if you are not already logged in.
From this screen, you can use the Change or Delete button to modify or remove sign-in methods
You can use the +Add method button to add a new sign in method
You will be prompted to verify items that you are adding during this process so they will need to be available at the time of your update