Lost My iphone

It's only possible if they knew your Apple ID password or if you were conned into responding to a phishing text or email and used a link in it to "log in" to see the location of your phone to a fake Apple login page, giving your credentials to the thief.

Afzali75 wrote:

how could to know my apple id password

Not being psychic, we can't answer that.

Perhaps the thief is someone you know.