If you want to keep others from viewing pics, & other files that are on you SD card, it is simple. Go to your sd card, & put pics, & files that you don’t want to be seen by others in a separate folder. When you name the folder, put a period in front of the name. (example .pics) If you want a little more privacy mount the card to your pc, & right click on the folder, go to properties & make it hidden. On the phone under SD card settings there is an option to show or not to show hidden files. However, I have noticed that you have to rename the folder with a period in front of the name to make any of this work. Once you do that, it works like a charm.