In Cerebro, user credentials are represented by login/password combination, which should be typed into login screen.
This procedure is required for the very first time a user logs into the system. To simplify the subsequent authorization procedures, identification data can be saved by using Remember me checkbox.
Besides you can use automated login (Login Automatically toggle bar on Settings tab) to save your credentials - using this mode login window is skipped, and Cerebro logs in using last credentials used.