After a quick search, I yielded no results and I am hoping that somebody here will be able to help. At home I am using a secure connection and when I go to view other machines on my network, everything is correct and I only see the shared files on my family's PCs. But when I go to my school in the day, the school's network is public and I can see other devices. This morning I looked on the other devices part and accidentally clicked on another person's computer and realized that I was able to see their songs in iTunes and possibly be able to play them (classes were about to start and didn't want to explore much further as I felt that I was invading someone's privacy). My being new to Macs (just got mine on Monday) and I want to make sure that when I am on the school's network that other people won't be able to view my files/songs like I was able to view theirs. Would they normally be able to do this already, or are the default security settings already preventing this? And am I able customize the security settings so that I am able to share when I am home [on my secure network] and not share when I am on the school's network? Or is this an easier change to do as soon as I log on to each network?