I think my iPhone is hacked or at least compromised
I woke up this morning my home and Lock Screen photo were changed. It was changed to a picture of someone who has an iphone and was alone with my iPhone 12 max. Could they have hacked my phone? Recently my phone has been glitchy and battery is draining faster. I fear the ex-friend that was alone with my phone may have mirrored it or something. I remember reading something about transferring data by facing 2 iPhones at each other?