What if someone else has something saved to my find my and I don’t know about it
What if someone has something connected to my device that I don’t know about?
iPhone XR, iOS 15
Question marked as
AFAIK, the only way they could do something like that is if they know your Apple ID & password. These steps can help you find out and regain control of your account:
If you think your Apple ID has been compromised - Apple Support