someone is hacking my phone
My ex was able to send me a screenshot of my current call list from as well as recordings of my phone conversations. The screenshot looked like it came from an android or non apple device. He does not have direct access to my phone to install anything. How can I prevent him from using 3rd party apps or tools to see/hear/record my calls and seeing my recent call list? (The calls showed up by the name they were saved as in my phone, like mirroring, not the actual number or government name, but exactly how I have them saved in my phone)
iPhone 15 Pro Max, iOS 18