Implementing simplified security with Top Secret, here are the steps done:
1. Set Security-Validation to USERDEF in the System Configuration member.
2. Verified OPTIONS parmlib member.
3. Created a user-defined field in the FDT ACID and Added the field GSVUSER to the base segment.
4. Permit user ACID (TSO ID) access to the user-defined field.
Will every user have access to DEFAULT SYSVIEW internal security group ?
or is it needed to permit every user id /group in Top Secret to have access to DEFAULT group ?
Only users who you want to be assigned to a security group other than DEFAULT need to be permitted to the user defined field GSVUSER
(that has a value of the Security Group you want them to be in).
These ids must be removed from the "User IDs Section".