Reporter: So Shadowwalker is coming out of the shadows.
Birkhoff: That's one way of putting it, yeah.
Reporter: Does this mean you're going legit?
Birkhoff: Legit? Yeah, I don't know. I've never really done lockstep. I've got a girl waiting for me in London. She convinced me sharing the code was the right thing to do.
Reporter: Yes. Shadownet. You claim this will protect regular folks against government agencies that spy on them? So this is what digital freedom for the masses?
Birkhoff: I'd say more like open-source anarchy.