Click on the link and read it to find out what to do "If your iPhone, iPad, or iPod touch is lost or stolen" --> https://support.apple.com/HT201472
Read what to do...
'If your Mac is lost or stolen.' Click here --> https://support.apple.com/HT204756
Click on this link "If you think your Apple ID has been compromised" --> https://support.apple.com/HT204145
'Checklist: If you want to see if anyone else has access to your device or accounts' click here --> https://support.apple.com/HT212021
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.
Please note that most people posting here do not work for Apple, we're just unofficial volunteers, users like you, trying to help others. We can only use our familiarity with Apple products and support documents to advise you as to what you can do to help yourself.
