Pictures visible when logging onto Dishem-no App

Just found out today. When you log into Dischem it seems there is no way to logout and they can view all your photos etc. Never gave them permission for that and that is not even having the App. So if you like me even requesting for example Facebook for send me zero friend requests. To be honest the friend requests feels like they about to rob you. I temporarily de-activate Facebook for privacy concern. Super security conscious in this evil world. Your choice though. Just putting it out there.