Separating Apple IDs and Messages on iPhone 12 Max Pro
I am on my Father’s plan and needed to add apps on my iphone. It is a 12maxPro. I set up my Apple ID and password using my Dad’s info and setup Apple ID and password with his information and password. We are now receiving each others text messages and private information. How do I fix this problem?
[Re-Titled by Moderator]
iPhone 12 Pro Max, iOS 16