Hi guys, I've come across a security concern whilst logging on to this site. I have 2 factor authentication set up on my iPad (iOS11) and iPhone (iOS10). When I logged into an Apple site on my Mac desktop running El Capitan 10.11.6 I was asked for the authentication code. However, the code actually came up on the Mac screen and not my iPad or iPhone. Surely that's a bit of a breach? I then tried to log in to the apple site on my iPad. Same thing happened. The code came up on the iPad. Nothing at all came up on my iPhone. I received no codes on there even though it is setup for 2 factor authentication. What has gone wrong? And how can I fix it?