Hey all, this all started when XBOX LIVE had an update I believe for XBOX ONE. When ever I start up my Xbox 360 then I sign in to my account. It says "Add Security" I HAVE 2 EMAIL'S AND 1 PHONE NUMBER ON MY ACCOUNT! Then when it doesn't ask me I get to sign in but then when I chose a game I want to play (Left 4 Dead) it logs me out as soon as I click the game. If someone can help me that would be wonderful. But right now Im thinking about quitting XBOX LIVE. So please help me with this. Thanks all!