If you run the following (the path may differ if you did not choose the default installation location):
/opt/CA/PerformanceCenter/SsoConfig
1. CA Performance Center
4. Single Sign-On
Do you see anything set for:
Anonymous User Enabled:
Anonymous User ID:
If you don't see anything in the initial display, check:
1. Remote Value
and
2. Local Override
If you see:
Anonymous User Enabled: Enabled
Anonymous User ID: 1
Then the system is configured to auto login as admin (the id of the admin user is 1).
You would want to reset these by selecting the corresponding number where it is set (Remote Value and/or Local Override)
and select r to reset the values.