Why can a user see the private chatter group even though they are not the member of the group?
|Knowledge Article Number||000205588|
|Description||Some customers might notice that a user can see a private chatter group even though they are not the group members
|Resolution||Please note that the below user permissions allow the access to Non Members of the group, check each individual permissions to troubleshoot if something was changed recently on the "user profile" and/or "permission set".
Apex and Visualforce: Apex code runs in system mode, which means that the permissions of the current user aren’t taken into account.