What about people in Nazi Germany hiding others? They were of course very secretive about it -- not being secretive certainly meant you and your charges being sent to a camp, and possibly outright death. Similar things happened with the underground railroad in the US. I would still gladly classify those people as civil disobedients.
Maybe there's a difference when you're protecting others? You can't risk being discovered, because then those who depend on you will also likely be discovered, and you won't be available to continue helping.