I don't know how Bloomberg works, but the New York Times has a very clear and public policy about using anonymous sources. There's usually a link to it in the

I don't know how Bloomberg works, but the New York Times has a very clear and public policy about using anonymous sources. There's usually a link to it in the middle or end of any story it publishes using an anonymous source. The Times isn't Bloomberg, but it might give you some insight into how these things work.