when I log in as a student into Moodle and go to one of my courses I can simply find out who has been registered on our system. Just go to one participants profiles and change the id number in the browsers adress-field and you will receive the message: e.g. Peter Farmer is not enlisted in this course. So I can go through all the id´s and get the names. Is this a kown bug? Is there any way to change permissions for students in the system to avoid that?
Thanks in advance.
Greetings from Heidelberg