>But how do you secure a home network?

Not being glib, but by not buying "smart" devices whatsoever. Manual streaming boxes might actually stop being viable for Linux as different services crack down. But, if you cared about privacy or security you wouldn't roll the dice with this stuff. I don't mean that in a rude or self-righteous way. Rather, I think people don't really care about privacy or security very much. Giving up streaming sounds like a big sacrifice to a lot of people, but if you contrived some scenario (really just for the sake of the argument) where your streaming devices were giving your kids mercury poisoning, you'd have no trouble giving them up. (and giving them up would really be the least of your worries) You might complain that mercury poison is not even remotely similar in severity it privacy or security concerns, and you'd be correct. But, that's the point I'm making. If people really cared about these issues then abstaining would be an easy decision. People claim to care, but don't actually take any action, and so I think they don't actually care that much.