I have a really big concern. I just received an email notifying me that someone has viewed a file a shared with them. I had no idea what this was, so I came online to see. This file is someones tax return. It says it was shared by me to someone I don't know.. How did this happen and what needs to be done. This makes me very concerned as I have no idea how I got this file and makes me wonder if any has randomly seen my files... HELP!