Been hacked
How can I tell if someone else is using my computer?
when I started to order something another name came up on my automatic fill
iPad Air, iOS 12
Question marked as
Best reply
Check your device list to see if there is a device signed in that you don't recognize. You can remove the device using the steps in the article below. As a precaution, change your password.
Apple ID device list -Check to see where you‘re signed in.
What to do after you change your Apple ID or password - Apple Support I suggest doing this before you change your Apple ID or password.