I have been a visiting researcher to fulfil my Ph.D. and to do the experimental step of my Ph.D. A month ago I understood that my host professor stole my Ph.D. topic and idea and he is writing a proposal about my project and wants to apply for a grant for it. I come here to do some cooperation with them but he stole it and wants to have the idea for himself.
What can I do to protect my project? Is there any place that I can complain? I am working a lot on my Ph.D. and don’t want to see that this person easily steals it.