Someone was just stolen my iPad Air1 4G 64GB,as we know,Apple has best security of electrionics.But still not 100%.My suggestion is: Can you make one serial No. only work for one account in apple store? Automatic to send email or position to the real owner when thief is using his account. Or send a 'confirm' code on iPhone. Update position of iOS device,then real user can see on 'Find my iPhone'Also this function will as same as work on email accounts.For example,if owner has 5 email accounts.After input one info of account.Apple will checking the same part of user's info.If totally different.Have to be confirm on another iOS or Mac or itunes for win.I think nobody wants to make his/her Yahoo,hotmail,google & aol totally different,If wants to sell it, 1. Seller & buyer together go to Apple Store at same time with their I.D. Card to change the owner information. 2. Seller & buyer can go Apple Store deal with PAYMENT & GATHERING on different time.Reserve on Apple Support. with