Asking for an NDA up-front can kill your chances for investment. Non-disclosure agreements have their place but they can stop a conversation with angels or VCs before it starts. Handle this situation correctly and you will have nothing to fear.
Blog: https://www.feeltheboot.com/blog/no-nda-before-pitch
Video: https://www.youtube.com/watch?v=ZyI34GCDUj4
