The humans won't know it's vampires, but the vampires will know. A random bit of graffiti while looking like a signature will actually be an announcement to the vampire world. Tatiana has no plans on revealing the existence of vampires to the world, revealing such information is lethal dangerous for the revealer and all those in that clan.

Friends of Humanity and the Church of Humanity, in comics the church is a splinter org but for the purposes of this RP I am making them one organization, same goal different methods.