Hi there First of all I'd like to apologize for my english but this forum is my last hope. I was trying to create backup of iPad gen.3 on a new installation of mac os x 10.9.3 but I couldn't because iTunes asked me about password. I do not remember any passwords. Password never been stored in Keychain Access and computer is without any previous backups. I checked on two different computers and I had the same situation. I have no idea where this password is stored. It seems that is stored on the iPad but where? I've never heard about such functionality. Thank you in advance for your help.