I often travel out of state to backpack/hike and frequently find myself in situations where I only have access to public wi-fi, which I know is not secure. Since I do work as a freelance writer who writes/blogs about my travels and experiences, I need to be able to write/photograph, etc. while I am on the go, but I am concerned about others being able to tap into my devices and access my information while I am working on the go. Is there anything I can do to keep my information safe?