Password reset
Someone keeps resetting my password. How can I set up a “two” step verification process to change the password?
?
Two-factor authentication for Apple ID - Apple Support goes over how to factor authentication works and how to set it up. It is the most secure feature available right now.
If you’re worried that other people have devices connected to your Apple ID you can also follow Check your Apple ID device list to find where you're signed in - Apple Support and also remove any unknown devices from Find My at https://www.icloud.com/find