Ask HN: Ever been asked to sign an NDA, before an interview?

Yes I've had to sign an NDA before an interview at a games company as they wanted to discuss their new project during the interview.

I haven't applied to a stealth-mode startup in a while, but yes, last time I did I was asked to sign an NDA.

I've had to sign NDAs for most interviews I've had. Makes sense considering details about products may come up during conversation. Plus most places I've interviewed at have given me a tour of their facilities during which it's likely I will be able to see what they're working on.