I have a few questions for those who have used it or anyone who has reservations about it. 1) Can you set who can receive your "Bump"? 2) Can you set what info is shared? 3) What is the share proximity limits? 4) Can someone snag your info during the transfer? 5) Is it on all the time or do I need to activate it? I have heard about security issues and was wondering if these have been taken care of?