Explanation
To ensure that a user group can connect through the Privileged Session Manager (PSM) without seeing the password, you must grant the Use Accounts and Retrieve Files permissions to the group for the safe. The Use Accounts permission allows users to initiate sessions using accounts without viewing the account details or passwords. The Retrieve Files permission enables users to retrieve files during PSM sessions without having access to the passwords1.
References:
* CyberArk Docs - Safe Permissions