An Apple ID is being used message
I woke up the iPad a few minutes ago, signed in, and received a popup message that
'Someone has signed in to iMessage or Face Time with your Apple ID on a new Mac. If you have recently logged on to (forget what was here) you can ignore this message. OK'
I hadn't, nor had anyone else in the house, but there was no option except that "OK".
Poorly designed message (no alternate choice), or a new type of Phishing attempt? When I eventually did tap "OK", the notice closed, and there was no further (visible) activity.
Has anyone else had a similar experience? Suggested action, should it happen again?
Regards,
Barry
iOS 11.3
see message