Currently, the platform permissions and policies can be configured to basically limit the ability of a learner to view directories of other learners. However, it is still possible for a learner to directly view the profile of other users by navigating to their profile URL. 

I request that a feature be added to further restrict the ability of learners or other specified user roles to view the information of other users. This is important in the K-12 sector especially; we have found that many K-12 organizations classify PII as minimal as first and last name as confidential. The discovery of this information on the platform is problematic from an information security standpoint.