Do this first
Take back control
- Change your Apple Account password. Make sure that you use a strong and unique password.
- If you can't change your Apple Account password because it's already been changed by someone else, reset your password.
- Go to account.apple.com to update any of personal or security information that isn't correct or that you don't recognize.
- On account.apple.com, select Devices and remove any devices associated with your Apple Account that you don't recognize.
- Check with your email provider and cellular carrier to make sure that you control every email address and phone number associated with your Apple Account. For example, check with your cellular carrier that SMS forwarding hasn't been set up for a phone number associated with your Apple Account.
Apple: If you think your Apple Account has been compromised ↗