What to do if Apple ID is hacked
What do you do if your Apple ID is hacked
iPhone X, iOS 12
Question marked as
What makes you think it is hacked? Not that it is impossible (particularly if you use Freedom or Liberty as your password) but there are often normal reasons for what you see.
If you think your Apple ID has been compromised - https://support.apple.com/HT204145
Security and your Apple ID - https://support.apple.com/HT201303
Contact Apple for help with Apple ID account security - https://support.apple.com/HT204169 "This article provides country-specific Apple Support contact information for customers seeking help with their Apple ID password or other security-related issues." Better for directly reporting an issue.