When accessing the Web Console from a non-trusted domain using Single Sign On (SSO), the Web Console will prompt for your user credentials before attempting to perform the SSO. After logging off from the console, it is recommended that you close the web browser window. If the window is not closed, then the next time someone tries to access the console, the browser will perform a SSO with your credentials.
Closing the web browser window prevents other users from automatically accessing the Web Console with your credentials.