Security issue

I recently visited my daughter and found that once logged in to their network I had access to their cloud-no password or security. I also have a WD cloud and feel that there should be a way to make a password required to access the files. How can I do it?

you can create additional users an passwords and set any share except the public share to block public access then grant read or full access to the proper users.

the public share dosn’t have any real option for security so I just don’t use it for anything