Modify CTC service login data in CIS 5.9

After installing CIS, the first time it detects and unsecure connection it asks to use CTC service.
After confirm, a username and password for CTC service must be typed in.

How can I change the username and password after entering them the first time?
I dont find any documentation about that, and CIS 5.9 doesnt store that information nowhere.

Thank you in advance.